Daily September 2020

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Tageszusammenfassung - 30.09.2020
by Daily end-of-shift report 30 Sep '20

30 Sep '20

===================== = End-of-Day report = ===================== Timeframe: Dienstag 29-09-2020 18:00 − Mittwoch 30-09-2020 18:00 Handler: Stephan Richter Co-Handler: n/a ===================== = News = ===================== ∗∗∗ Fake software crack sites used to push Exorcist 2.0 Ransomware ∗∗∗ --------------------------------------------- The threat actors behind the Exorcist 2.0 ransomware are using malicious advertising to redirect victims to fake software crack sites that distribute their malware. --------------------------------------------- https://www.bleepingcomputer.com/news/security/fake-software-crack-sites-us… ∗∗∗ Over 247K Exchange servers unpatched for actively exploited flaw ∗∗∗ --------------------------------------------- More than 247,000 Microsoft Exchange servers are yet to be patched against the CVE-2020-0688 post-auth remote code execution (RCE) vulnerability impacting all Exchange Server versions under support. --------------------------------------------- https://www.bleepingcomputer.com/news/security/over-247k-exchange-servers-u… ∗∗∗ Microsoft Digital Defense Report 2020: Cyber Threat Sophistication on the Rise ∗∗∗ --------------------------------------------- A new report from Microsoft shows it is clear that threat actors have rapidly increased in sophistication over the past year, using techniques that make them harder to identify. --------------------------------------------- https://www.microsoft.com/security/blog/2020/09/29/microsoft-digital-defens… ∗∗∗ Its 2020 so not only is your mouse config tool a Node.JS Electron app, its also pwnable by an evil webpage ∗∗∗ --------------------------------------------- Malicious JavaScript can inject commands to execute Earlier this year, peripheral maker Kensington patched its desktop software to close a vulnerability that could have been exploited by malicious websites to quietly hijack victims computers. --------------------------------------------- https://go.theregister.com/feed/www.theregister.com/2020/09/30/kensingtonwo… ∗∗∗ LodaRAT Update: Alive and Well ∗∗∗ --------------------------------------------- By Chris Neal. During our continuous monitoring of LodaRAT, Cisco Talos observed changes in the threat that add new functionality. Multiple new versions of LodaRAT have been spotted being used in the wild. These new versions of LodaRAT abandoned their previous obfuscation techniques. Direct interaction with the threat actor was observed during analysis, indicating the actor is actively monitoring infected hosts. --------------------------------------------- https://blog.talosintelligence.com/2020/09/lodarat-update-alive-and-well.ht… ∗∗∗ Achtung! Vermeintliche Gutschein-Codes führen in Abo-Falle ∗∗∗ --------------------------------------------- Derzeit tauchen vermehrt gefälschte Gutschein-Codes für verschiedene Anbieter wie Netflix, Steam, Playstation, Google Play oder Amazon auf. Zu finden sind diese Codes in Kommentaren unter verschiedensten YouTube-Videos. Doch anstatt den versprochenen 50 Euro, tappen die Opfer in die Abo-Falle. --------------------------------------------- https://www.watchlist-internet.at/news/achtung-vermeintliche-gutschein-code… ∗∗∗ This worm phishing campaign is a game-changer in password theft, account takeovers ∗∗∗ --------------------------------------------- The security incident highlights the need for multi-factor authentication in the enterprise. --------------------------------------------- https://www.zdnet.com/article/this-worm-phishing-campaign-is-a-game-changer… ===================== = Vulnerabilities = ===================== ∗∗∗ Jetzt patchen! Cisco liefert Sicherheitsupdates für Router nach ∗∗∗ --------------------------------------------- Admins sollten professionelle Router von Cisco aus Sicherheitsgründe auf den aktuellen Stand bringen. Angreifer nutzen die Lücken derzeit aus. --------------------------------------------- https://heise.de/-4916417 ∗∗∗ FYI: If youre running HP Device Manager, anyone on your network can get admin on your server via backdoor ∗∗∗ --------------------------------------------- Hidden database account discovered, patches finally available as well as mitigations HP Device Manager, software that allows IT administrators to manage HP Thin Client devices, comes with a backdoor database user account that undermines network security, a UK-based consultant has warned. --------------------------------------------- https://go.theregister.com/feed/www.theregister.com/2020/09/30/hp_device_ma… ∗∗∗ Huawei Security Advisories ∗∗∗ --------------------------------------------- Huawei hat 16 Security Advisories für verschiedene Produkte veröffentlicht. --------------------------------------------- https://www.huawei.com/en/psirt/all-bulletins ∗∗∗ Security updates for Wednesday ∗∗∗ --------------------------------------------- Security updates have been issued by Arch Linux (chromium, firefox, libvirt, and podman), Debian (firefox-esr and nss), Gentoo (bitcoind, chromium, cifs-utils, gpsd, libuv, and xen), Mageia (firefox, gnutls, mediawiki, samba, and Thunderbird), openSUSE (brotli and cifs-utils), Red Hat (audiofile, bluez, cloud-init, cpio, cups, curl, dbus, dnsmasq, e2fsprogs, evince and poppler, exiv2, expat, firefox, fontforge, freeradius, freerdp, glib2 and ibus, glibc, httpd, hunspell, ipa, kernel, kernel-rt, [...] --------------------------------------------- https://lwn.net/Articles/833120/ ∗∗∗ Vulnerabilities in Bosch PRAESIDEO and PRAESENSA ∗∗∗ --------------------------------------------- BOSCH-SA-538331-BT: Two security vulnerabilities have been uncovered in the web based management interface of the PRAESIDEO Network Controller and the PRAESENSA System Controller. The vulnerabilities will allow a Cross-Site Request Forgery (CSRF) attack and a Cross-site Scripting (XSS) attack. For PRAESIDEO a third vulnerability will allow a replay attack with which authentication can be bypassed. This last vulnerability is present in the web server of the PRAESIDEO Network Controller. --------------------------------------------- https://psirt.bosch.com/security-advisories/bosch-sa-538331-bt.html ∗∗∗ Advisory: Multiple Vulnerabilities in SiteManager and GateManager ∗∗∗ --------------------------------------------- https://www.br-automation.com/downloads_br_productcatalogue/assets/16000031… ∗∗∗ Advisory: Multiple Vulnerabilities in GateManager ∗∗∗ --------------------------------------------- https://www.br-automation.com/downloads_br_productcatalogue/assets/16000031… ∗∗∗ Red Hat Enterprise Linux: Mehrere Schwachstellen ∗∗∗ --------------------------------------------- https://www.cert-bund.de/advisoryshort/CB-K20-0939 ∗∗∗ Red Hat Enterprise Linux: Mehrere Schwachstellen ∗∗∗ --------------------------------------------- https://www.cert-bund.de/advisoryshort/CB-K20-0940 ∗∗∗ Red Hat Enterprise Linux/FreeRDP: Mehrere Schwachstellen ∗∗∗ --------------------------------------------- https://www.cert-bund.de/advisoryshort/CB-K20-0941 ∗∗∗ Red Hat Enterprise Linux/WebKitGTK: Mehrere Schwachstellen ermöglichen Ausführen von beliebigem Programmcode mit Benutzerrechten ∗∗∗ --------------------------------------------- https://www.cert-bund.de/advisoryshort/CB-K20-0942 ∗∗∗ Security Bulletin: Security vulnerability in WebSphere Liberty Server shipped with IBM Global Mailbox (CVE-2020-4329) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-security-vulnerability-in… ∗∗∗ Security Bulletin: Version 5.0.5 of Redis included in IBM Netcool Operations Insight 1.6.1.x has a security vulnerability (CVE-2020-14147) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-version-5-0-5-of-redis-in… ∗∗∗ Security Bulletin: Vulnerabilities in WebSphere Application Server affect IBM Cloud Orchestrator and IBM Cloud Orchestrator Enterprise ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-vulnerabilities-in-websph… ∗∗∗ Security Bulletin: Multiple vulnerabilities in IBM® SDK, Java™ Technology Edition may affect IBM Cloud Orchestrator and IBM Cloud Orchestrator Enterprise ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-… ∗∗∗ Security Bulletin: Multiple vulnerabilities in middleware software affect IBM Cloud Pak for Automation ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-… ∗∗∗ Security Bulletin: WebSphere Application Server is vulnerable to an information exposure vulnerability (CVE-2020-4629) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-websphere-application-ser… ∗∗∗ Security Bulletin: Version 4.17.15 of Node.js module lodash included in IBM Netcool Operations Insight 1.6.1.x has a security vulnerability ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-version-4-17-15-of-node-j… ∗∗∗ Security Bulletin: IBM Tivoli Netcool Impact is affected by an Apache Commons Codec vulnerability ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-tivoli-netcool-impact… ∗∗∗ Security Bulletin: Vulnerability in Apache Commons Codec affects IBM Operations Analytics Predictive Insights ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-vulnerability-in-apache-c… ∗∗∗ Security Bulletin: IBM Cloud Manager with OpenStack is affected by a OpenSSL vulnerability ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-cloud-manager-with-op… -- CERT.at Daily mailing list Listinfo: https://lists.cert.at/cgi-bin/mailman/listinfo/daily

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Tageszusammenfassung - 29.09.2020
by Daily end-of-shift report 29 Sep '20

29 Sep '20

===================== = End-of-Day report = ===================== Timeframe: Montag 28-09-2020 18:00 − Dienstag 29-09-2020 18:00 Handler: Stephan Richter Co-Handler: n/a ===================== = News = ===================== ∗∗∗ How to manage the changes in Netlogon secure channel connections associated with CVE-2020-1472 ∗∗∗ --------------------------------------------- The Netlogon Remote Protocol (also called MS-NRPC) is an RPC interface that is used exclusively by domain-joined devices. MS-NRPC includes an authentication method and a method of establishing a Netlogon secure channel. These updates enforce the specified Netlogon client behavior to use secure RPC with Netlogon secure channel between member computers and Active Directory (AD) domain controllers (DC). This security update addresses the vulnerability by enforcing secure RPC when using the [...] --------------------------------------------- https://support.microsoft.com/en-us/help/4557222/how-to-manage-the-changes-… ∗∗∗ Windows 10 is offering a confusing mess of Intel driver updates ∗∗∗ --------------------------------------------- Windows 10 2004 is offering optional updates for Intel drivers that are a confusing mess for users who attempt to install them. --------------------------------------------- https://www.bleepingcomputer.com/news/microsoft/windows-10-is-offering-a-co… ∗∗∗ Backdoor Obfuscation: tempnam & URL Encoding ∗∗∗ --------------------------------------------- In an attempt to avoid detection, attackers and malware authors are always experimenting with different methods to obfuscate their malicious code. During a recent investigation, we came across an interesting backdoor that was leveraging encoding along with common PHP functions to conceal its operations from any active security systems on the host. This PHP web shell uses the following obfuscation method, where the web shell code is stored in URL encoded format and assigned to the variable $i: [...] --------------------------------------------- https://blog.sucuri.net/2020/09/backdoor-obfuscation-tempnam-url-encoding.h… ∗∗∗ [SANS ISC] Managing Remote Access for Partners & Contractors ∗∗∗ --------------------------------------------- I published the following diary on isc.sans.edu: "Managing Remote Access for Partners & Contractors": Yesterday, I wrote a quick diary about a potential security issue that some Tyler customers faced. Some people reacted to my diary with interesting comments in our forums. Two of them were interesting and deserve some [...] --------------------------------------------- https://blog.rootshell.be/2020/09/29/sans-isc-managing-remote-access-for-pa… ∗∗∗ Cloud-y, with a chance of hacking all the wireless things ∗∗∗ --------------------------------------------- Grandstream are a provider of IP video and voice services, as well as Wi-Fi and other related services and equipment. Their products are sold in over 150 countries and they [...] --------------------------------------------- https://www.pentestpartners.com/security-blog/cloudy-with-a-chance-of-hacki… ∗∗∗ Playstation 5 nicht bei biogaming.de vorbestellen ∗∗∗ --------------------------------------------- Viele warten schon sehnsüchtig auf die neue Playstation 5. Um zum Verkaufsstart im November auch mit Sicherheit ein Modell zu ergattern, suchen KonsumentInnen nach Onlineshops, die noch eine Vorbestellung annehmen. Vorsicht ist jedoch geboten: Auch Fake-Shop bieten die Playstation 5 an! Wer beispielsweise bei biogaming.de bestellt, erhält trotz Bezahlung keine Ware. --------------------------------------------- https://www.watchlist-internet.at/news/playstation-5-nicht-bei-biogamingde-… ===================== = Vulnerabilities = ===================== ∗∗∗ Critical Information Disclosure on WP Courses plugin exposes private course videos and materials ∗∗∗ --------------------------------------------- Today weve got an interesting story to share. A vulnerability in WP Courses caused our Java course to be publicly disclosed via the WordPress REST API. Let’s dive into the details and see what happened. --------------------------------------------- https://www.redtimmy.com/critical-information-disclosure-on-wp-courses-plug… ∗∗∗ Security-Updates für Windows-Versionen von Foxit Reader und PhantomPDF verfügbar ∗∗∗ --------------------------------------------- Das Foxit-Team hat Sicherheitslücken mit überwiegend hoher Risikoeinstufung aus Reader und PhantomPDF für Windows sowie aus dem 3D Plugin (Beta) beseitigt. --------------------------------------------- https://heise.de/-4915016 ∗∗∗ Security updates for Tuesday ∗∗∗ --------------------------------------------- Security updates have been issued by Debian (firefox-esr and mediawiki), openSUSE (firefox, libqt5-qtbase, and rubygem-actionpack-5_1), Red Hat (qemu-kvm, qemu-kvm-ma, and virt:rhel), SUSE (dpdk, firefox, and go1.15), and Ubuntu (dpdk, imagemagick, italc, libpgf, libuv1, pam-python, squid3, ssvnc, and teeworlds). --------------------------------------------- https://lwn.net/Articles/832958/ ∗∗∗ Trend Micro Security Produkte: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen ∗∗∗ --------------------------------------------- https://www.cert-bund.de/advisoryshort/CB-K20-0938 ∗∗∗ Security Bulletin: IBM Security Verify Privilege Vault Remote is vulnerable to local user security bypass (CVE-2020-4607) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-security-verify-privi… ∗∗∗ Security Bulletin: App Connect Enterprise Certified Container is vulnerable to (CVE-2020-8244) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-app-connect-enterprise-ce… ∗∗∗ Security Bulletin: App Connect Enterprise Certified Container is vulnerable to an infinite read loop (CVE-2020-16845) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-app-connect-enterprise-ce… ∗∗∗ Security Bulletin: Multiple vulnerabilities in IBM Java SDK and IBM Java Runtime affect IBM i ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-… ∗∗∗ Security Bulletin: IBM Cloud Private is vulnerable to Kubernetes vulnerabilities (CVE-2020-8557, CVE-2020-8559) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-cloud-private-is-vuln… ∗∗∗ Security Bulletin: App Connect Enterprise Certified Container is vulnerable to a regular expression infinite loop (NODE-SECURITY-1488) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-app-connect-enterprise-ce… ∗∗∗ Security Bulletin: IBM Java SDK and IBM Java Runtime for IBM i is affected by CVE-2020-2590 ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-java-sdk-and-ibm-java… ∗∗∗ Security Bulletin: Aspera on Cloud CVE-2020-8184 ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-aspera-on-cloud-cve-2020-… ∗∗∗ Security Bulletin: IBM Cloud Private is vulnerable to a Kubernetes vulnerability (CVE-2020-8553) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-cloud-private-is-vuln… ∗∗∗ Security Bulletin: IBM Java SDK and IBM Java Runtime for IBM i is affected by CVE-2020-2601 ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-java-sdk-and-ibm-java… -- CERT.at Daily mailing list Listinfo: https://lists.cert.at/cgi-bin/mailman/listinfo/daily

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Tageszusammenfassung - 28.09.2020
by Daily end-of-shift report 28 Sep '20

28 Sep '20

===================== = End-of-Day report = ===================== Timeframe: Freitag 25-09-2020 18:00 − Montag 28-09-2020 18:00 Handler: Stephan Richter Co-Handler: n/a ===================== = News = ===================== ∗∗∗ Some Tyler Technologies Customers Targeted with The Installation of a Bomgar Client, (Mon, Sep 28th) ∗∗∗ --------------------------------------------- One of our readers, a Tyler Technologies's customer, reported to us that he found this morning the Bomgar client[1] (BeyondTrust) installed on one of his servers. There is an ongoing discussion on Reddit with the same kind of reports[2]. --------------------------------------------- https://isc.sans.edu/diary/rss/26610 ∗∗∗ Magento Credit Card Stealing Malware: gstaticapi ∗∗∗ --------------------------------------------- Our team recently came across a malicious script used on a Magento website titled gstaticapi, which targeted checkout processes to capture and exfiltrate stolen information. To obtain sensitive details, the malware loads external javascript whenever the URL contains “checkout” ⁠— this location typically belongs to the step in Magento’s checkout process where users enter their sensitive credit card information and shipping details. --------------------------------------------- https://blog.sucuri.net/2020/09/magento-credit-card-stealing-malware-gstati… ∗∗∗ Kostenloses Entschlüsselungstool für Erpressungstrojaner ThunderX ist da ∗∗∗ --------------------------------------------- Sicherheitsforscher haben einen Fehler in der Verschlüsselung durch die Ransomware ThunderX entdeckt und bieten nun Hilfe an. --------------------------------------------- https://heise.de/-4913470 ===================== = Vulnerabilities = ===================== ∗∗∗ Jetzt patchen! AgeLocker Ransomware hat es auf Qnap NAS abgesehen ∗∗∗ --------------------------------------------- Besitzer von Netzwerkspeichern (NAS) der Firma Qnap, sollten ihr Gerät aus Sicherheitsgründen auf den aktuellen Stand bringen. --------------------------------------------- https://heise.de/-4913513 ∗∗∗ Security updates for Monday ∗∗∗ --------------------------------------------- Security updates have been issued by Debian (curl, libdbi-perl, linux-4.19, lua5.3, mediawiki, nfdump, openssl1.0, qt4-x11, qtbase-opensource-src, ruby-gon, and yaws), Fedora (f2fs-tools, grub2, libxml2, perl-DBI, singularity, xawtv, and xen), Mageia (cifs-utils, kio-extras, libproxy, mbedtls, nodejs, novnc, and pdns), openSUSE (bcm43xx-firmware, chromium, conmon, fuse-overlayfs, libcontainers-common, podman, firefox, libqt4, libqt5-qtbase, openldap2, ovmf, pdns, rubygem-actionpack-5_1, and [...] --------------------------------------------- https://lwn.net/Articles/832831/ ∗∗∗ MediaWiki: Mehrere Schwachstellen ∗∗∗ --------------------------------------------- Ein lokaler Angreifer kann mehrere Schwachstellen in MediaWiki ausnutzen, um beliebigen Programmcode mit Benutzerrechten auszuführen, einen Cross-Site Scripting Angriff durchzuführen, Daten zu manipulieren oder weitere Angriffe mit nicht spezifizierten Auswirkungen durchzuführen. --------------------------------------------- https://www.cert-bund.de/advisoryshort/CB-K20-0923 ∗∗∗ MediaWiki: Mehrere Schwachstellen ∗∗∗ --------------------------------------------- Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in MediaWiki ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen oder Sicherheitsvorkehrungen zu umgehen. --------------------------------------------- https://www.cert-bund.de/advisoryshort/CB-K20-0934 ∗∗∗ Trend Micro Apex One: Mehrere Schwachstellen ∗∗∗ --------------------------------------------- Ein lokaler Angreifer kann mehrere Schwachstellen in Trend Micro Apex One ausnutzen, um seine Privilegien zu erhöhen, Code zur Ausführung zu bringen und Informationen offenzulegen. --------------------------------------------- https://www.cert-bund.de/advisoryshort/CB-K20-0925 ∗∗∗ F5 BIG-IP: Schwachstelle ermöglicht Denial of Service ∗∗∗ --------------------------------------------- Ein entfernter, anonymer Angreifer kann eine Schwachstelle in F5 BIG-IP ausnutzen, um einen Denial of Service Angriff durchzuführen. --------------------------------------------- https://www.cert-bund.de/advisoryshort/CB-K20-0927 ∗∗∗ Security Advisory - Buffer Overflow Vulnerability BootHole in GRUB2 Secure Boot ∗∗∗ --------------------------------------------- http://www.huawei.com/en/psirt/security-advisories/2020/huawei-sa-20200923-… ∗∗∗ Security Bulletin: Insecure Use of InnerHTML or OuterHTML in IBM Enterprise Records ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-insecure-use-of-innerhtml… ∗∗∗ Security Bulletin: Dynamically constructed href attribute in IBM Enterprise Records ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-dynamically-constructed-h… ∗∗∗ Security Bulletin: Apache Commons Codec Vulnerability Affects IBM Control Center ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-apache-commons-codec-vuln… ∗∗∗ Security Bulletin: Multiple Java Vulnerabilities Impact IBM Control Center ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-multiple-java-vulnerabili… ∗∗∗ Security Bulletin: IBM Cloud Private is vulnerable to a Node.js lodash vulnerability (CVEID: 183560) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-cloud-private-is-vuln… ∗∗∗ Security Bulletin: Security Vulnerabilities affect IBM Cloud Private – OpenSSL (CVE-2019-1563, CVE-2019-1549, CVE-2019-1547) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-security-vulnerabilities-… ∗∗∗ Security Bulletin: IBM Event Streams is affected by a Node.js http-proxy and lodash module vulnerabilities ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-event-streams-is-affe… ∗∗∗ Security Bulletin: IBM Event Streams is affected by a vulnerability in the Go runtime (CVE-2020-16845) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-event-streams-is-affe… ∗∗∗ Security Bulletin: IBM Event Streams is affected by a Redis vulnerability (CVE-2020-14147) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-event-streams-is-affe… ∗∗∗ Security Bulletin: IBM Cloud Private is vulnerable to an Elasticsearch vulnerability (CVE-2019-7614) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-cloud-private-is-vuln… ∗∗∗ Security Bulletin: Publicly disclosed vulnerability from OpenSSH affects IBM Netezza Host Management ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-publicly-disclosed-vulner… ∗∗∗ Security Bulletin: IBM Cloud Private is vulnerable to a Netty vulnerability (CVE-2020-11612) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-cloud-private-is-vuln… ∗∗∗ Security Bulletin: A Security Vulnerability affects IBM Cloud Private – Logstash (CVE-2019-7620) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-a-security-vulnerability-… ∗∗∗ Security Bulletin: Multiple vulnerabilities of Mozilla Firefox (less than Firefox 68.12.0 ESR + CVE-2020-15664) hava affected Synthetic Playback Agent 8.1.4.0-8.1.4 IF11 + ICAM2019.3.0 – 2020.2.0 ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-… ∗∗∗ Security Bulletin: Multiple vulnerabilities of Mozilla Firefox (less than Firefox 68.12.0 ESR + CVE-2020-15659) have affected Synthetic Playback Agent 8.1.4.0-8.1.4 IF11 + ICAM2019.3.0 – 2020.2.0 ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-… ∗∗∗ Security Bulletin: Multiple vulnerabilities of Mozilla Firefox (less than Firefox 68.12.0 ESR) hava affected Synthetic Playback Agent 8.1.4.0-8.1.4 IF11 + ICAM2019.3.0 – 2020.2.0 ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-… ∗∗∗ Security Bulletin: IBM Cloud Private is vulnerable to Kibana vulnerabilities (CVE-2020-7015, CVE-2020-7013, CVE-2020-7012) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-cloud-private-is-vuln… ∗∗∗ Security Bulletin: IBM Cloud Private is vulnerable to a Kubernetes vulnerability (CVEID: 182747) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-cloud-private-is-vuln… ∗∗∗ Security Bulletin: Security Vulnerabilities affect IBM Cloud Private – Node.js (CVE-2019-15605, CVE-2019-15606) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-security-vulnerabilities-… -- CERT.at Daily mailing list Listinfo: https://lists.cert.at/cgi-bin/mailman/listinfo/daily

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Tageszusammenfassung - 25.09.2020
by Daily end-of-shift report 25 Sep '20

25 Sep '20

===================== = End-of-Day report = ===================== Timeframe: Donnerstag 24-09-2020 18:00 − Freitag 25-09-2020 18:00 Handler: Stephan Richter Co-Handler: n/a ===================== = News = ===================== ∗∗∗ Datenleck: Airbnb gibt Gastgebern Zugriff auf fremde Postfächer ∗∗∗ --------------------------------------------- Hosts berichten, dass ihnen die Nachrichten anderer Airbnb-Hosts angezeigt werden - bis hin zur PIN, mit der sich die Tür öffnen lässt. --------------------------------------------- https://www.golem.de/news/datenleck-airbnb-gibt-gastgebern-zugriff-auf-frem… ∗∗∗ Sodinokibi Ransomware 101: Origin, Victims, Prevention Strategies ∗∗∗ --------------------------------------------- Cyberattacks have become a part of our reality, but have you ever wondered what might happen if your company gets targeted? You probably imagine that you would lose some money and a great deal of time, maybe fire an employee or too, lose a few clients and have your reputation tainted or eventually even deal [...] --------------------------------------------- https://heimdalsecurity.com/blog/sodinokibi-ransomware-101/ ∗∗∗ Ghost in action: the Specter botnet ∗∗∗ --------------------------------------------- On August 20, 2020, 360Netlab Threat Detect System captured a suspicious ELF file (22523419f0404d628d02876e69458fbe.css) with 0 VT detection. When we took a close look, we see a new botnet that targets AVTECH IP Camera / NVR / DVR devices, and it has flexible configuration, highly modular / plugin, and uses TLS, [...] --------------------------------------------- https://blog.netlab.360.com/ghost-in-action-the-specter-botnet/ ∗∗∗ Securing Exchange Online [Guest Diary], (Fri, Sep 25th) ∗∗∗ --------------------------------------------- [...] The base configuration of Exchange Online is set to allow quick onboarding of customers with minimal barriers to the smooth migration of email into the service. The configuration does require tweaks to in order to make it more secure. I aim to cover some of the more effective tweaks in this document and point the reader to the right documentation to secure their Exchange tenant. --------------------------------------------- https://isc.sans.edu/diary/rss/26600 ∗∗∗ Fortinet VPN with Default Settings Leave 200,000 Businesses Open to Hackers ∗∗∗ --------------------------------------------- As the pandemic continues to accelerate the shift towards working from home, a slew of digital threats have capitalized on the health concern to exploit weaknesses in the remote work infrastructure and carry out malicious attacks. Now according to network security platform provider SAM Seamless Network, over 200,000 businesses that have deployed the Fortigate VPN solution to enable employees to [...] --------------------------------------------- https://thehackernews.com/2020/09/fortigate-vpn-security.html ∗∗∗ Studie: Angreifer wollen ins Homeoffice – millionenfach über RDP-Verbindungen ∗∗∗ --------------------------------------------- In Corona-Zeiten haben Forscher einen signifikanten Anstieg von Attacken auf Remote-Verbindungen registriert. Mit den richtigen Tipps schützt man sich. --------------------------------------------- https://heise.de/-4912452 ∗∗∗ Security-Updatepaket für Ciscos Netzwerkbetriebssysteme IOS und IOS XE ∗∗∗ --------------------------------------------- Admins aufgepasst: Vor dem Start ins Wochenende warten noch Updates für IOS und IOS XE, die insgesamt 34 Schwachstellen mit hoher Risikoeinstufung schließen. --------------------------------------------- https://heise.de/-4912352 ∗∗∗ Handling Incidents in ICS – Getting to the Root of the Problem ∗∗∗ --------------------------------------------- For most organizations, having an incident response plan is a regulatory or even legal requirement these days. Unfortunately just having [...] --------------------------------------------- https://www.dragos.com/blog/industry-news/handling-incidents-in-ics-getting… ===================== = Vulnerabilities = ===================== ∗∗∗ macOS Catalina 10.15.7, Security Update 2020-005 High Sierra, Security Update 2020-005 Mojave ∗∗∗ --------------------------------------------- This document describes the security content of macOS Catalina 10.15.7, Security Update 2020-005 High Sierra, Security Update 2020-005 Mojave. --------------------------------------------- https://support.apple.com/kb/HT211849 ∗∗∗ iCloud for Windows 11.4 ∗∗∗ --------------------------------------------- This document describes the security content of iCloud for Windows 11.4. --------------------------------------------- https://support.apple.com/kb/HT211846 ∗∗∗ iCloud for Windows 7.21 ∗∗∗ --------------------------------------------- This document describes the security content of iCloud for Windows 7.21. --------------------------------------------- https://support.apple.com/kb/HT211847 ∗∗∗ Cisco Security Advisories ∗∗∗ --------------------------------------------- Cisco hat 42 Security Advisories mit folgenden "Security Impact Ratings" veröffentlicht: High: 29 Medium: 13 --------------------------------------------- https://tools.cisco.com/security/center/Search.x?publicationTypeIDs=1&first… ∗∗∗ Security updates for Friday ∗∗∗ --------------------------------------------- Security updates have been issued by Debian (rails), openSUSE (chromium, jasper, ovmf, roundcubemail, samba, and singularity), Oracle (firefox), SUSE (bcm43xx-firmware, firefox, libqt5-qtbase, qemu, and tiff), and Ubuntu (aptdaemon, atftp, awl, packagekit, and spip). --------------------------------------------- https://lwn.net/Articles/832509/ ∗∗∗ Security Bulletin: IBM InfoSphere Information Server is vulnerable to Cross-frame scripting ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-infosphere-informatio… ∗∗∗ Security Bulletin: Security Vulnerabilities in IBM® Java SDK July 2020 CPU plus CVE-2020-2590 and CVE-2020-2601 affect multiple IBM Continuous Engineering products based on IBM Jazz Technology ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-security-vulnerabilities-… ∗∗∗ Security Bulletin: A vulnerability in IBM Java Runtime affect IBM Spectrum Conductor and IBM Spectrum Conductor with Spark ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-a-vulnerability-in-ibm-ja… ∗∗∗ Security Bulletin: WebSphere Application Server is vulnerable to an information exposure vulnerability (CVE-2020-4643) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-websphere-application-ser… ∗∗∗ Security Bulletin: A vulnerability in IBM Java Runtime affect IBM Spectrum Conductor and IBM Spectrum Conductor with Spark ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-a-vulnerability-in-ibm-ja… ∗∗∗ Security Bulletin: Information disclosure vulnerability affect IBM Business Automation Workflow and IBM Business Process Manager (BPM) – CVE-2020-4531 ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-information-disclosure-vu… -- CERT.at Daily mailing list Listinfo: https://lists.cert.at/cgi-bin/mailman/listinfo/daily

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Tageszusammenfassung - 24.09.2020
by Daily end-of-shift report 24 Sep '20

24 Sep '20

===================== = End-of-Day report = ===================== Timeframe: Mittwoch 23-09-2020 18:00 − Donnerstag 24-09-2020 18:00 Handler: Stephan Richter Co-Handler: n/a ===================== = News = ===================== ∗∗∗ Security-Checkliste Passwörter & Accounts ∗∗∗ --------------------------------------------- Passwörter sind ein notwendiges Übel. Mit den folgenden Tipps haben Sie so wenig Passwortstress wie nötig, ohne an der Sicherheit zu sparen. --------------------------------------------- https://heise.de/-4886755 ∗∗∗ Vorsicht vor Raiffeisen Phishing SMS ∗∗∗ --------------------------------------------- Momentan werden massenhaft betrügerische Phishing SMS im Namen der Raiffeisen Bank verschickt. Angeblich sollte eine PushTAN Registrierung abgeschlossen werden. Die verlinkte Website sieht der echten dabei zum Verwechseln ähnlich. Achtung: Hier dürfen keinesfalls die eigenen Online Banking Daten eingegeben werden. Diese landen direkt in den Händen Krimineller. --------------------------------------------- https://www.watchlist-internet.at/news/vorsicht-vor-raiffeisen-phishing-sms/ ∗∗∗ Android-Malware Alien stiehlt Geld ∗∗∗ --------------------------------------------- Ein Android-Trojaner namens Alien ist seit Anfang des Jahres aktiv und wird als Malware-as-a-Service (MaaS) in unterirdischen Hackerforen angeboten. Ziel sind Banking- und Finanz-Apps auch in Deutschland --------------------------------------------- https://www.zdnet.de/88382932/android-malware-alien-stiehlt-geld/ ∗∗∗ Supply Chain bietet Angriffspunkte ∗∗∗ --------------------------------------------- Hacker nutzen zunehmend die Lieferketten im Ökosystem von Unternehmen, um ihre Angriffe vorzutragen. Kleinere Lieferanten mit schwachen Sicherheitsstrukturen bieten Einstiegspunkte für Attacken. --------------------------------------------- https://www.zdnet.de/88382938/supply-chain-bietet-angriffspunkte/ ∗∗∗ Protecting Against PowerShell Attacks: 5 Key Steps ∗∗∗ --------------------------------------------- Admins are already busy maintaining all systems running onsite and remotely, so the extra demand to protect against fileless threats can be overwhelming for manual security operations and inexperienced IT professionals. There are, however, five basic steps you can take to help mitigate the threat --------------------------------------------- https://www.beyondtrust.com/blog/entry/protecting-against-powershell-attack… ∗∗∗ AgeLocker ransomware targets QNAP NAS devices, steals data ∗∗∗ --------------------------------------------- QNAP NAS devices are being targeted in attacks by the AgeLocker ransomware, which encrypts the devices data, and in some cases, steal files from the victim. --------------------------------------------- https://www.bleepingcomputer.com/news/security/agelocker-ransomware-targets… ∗∗∗ Malicious One-Liner Using Hastebin ∗∗∗ --------------------------------------------- Short scripts that deliver malware to a website are nothing new, but during a recent investigation we found a script using hastebin[.]com, which is a domain we see used infrequently. The script was found writing malicious contents into an image directory on a compromised website, allowing an attacker to execute other malicious commands. --------------------------------------------- https://blog.sucuri.net/2020/09/malicious-one-liner-using-hastebin.html ∗∗∗ [SANS ISC] Party in Ibiza with PowerShell ∗∗∗ --------------------------------------------- I published the following diary on isc.sans.edu: "Party in Ibiza with PowerShell": Today, I would like to talk about PowerShell ISE or "Integration Scripting Environment". This tool is installed by default on all Windows computers (besides the classic PowerShell interpreter). From a malware analysis point of view, ISE offers a key feature: [...] --------------------------------------------- https://blog.rootshell.be/2020/09/24/sans-isc-party-in-ibiza-with-powershel… ∗∗∗ Fuzzing Image Parsing in Windows, Part One: Color Profiles ∗∗∗ --------------------------------------------- Image parsing and rendering are basic features of any modern operating system (OS). Image parsing is an easily accessible attack surface, and a vulnerability that may lead to remote code execution or information disclosure in such a feature is valuable to attackers. --------------------------------------------- https://www.fireeye.com/blog/threat-research/2020/09/fuzzing-image-parsing-… ===================== = Vulnerabilities = ===================== ∗∗∗ Jetzt patchen! Attacken auf Zerologon-Lücke in Windows Server ∗∗∗ --------------------------------------------- Microsoft warnt vor Attacken auf eine kritische Sicherheitslücke in verschiedenen Windows-Server-Versionen. Auch Samba ist betroffen. --------------------------------------------- https://heise.de/-4910854 ∗∗∗ Security updates for Thursday ∗∗∗ --------------------------------------------- Security updates have been issued by Fedora (firefox, libproxy, mbedtls, samba, and zeromq), openSUSE (chromium and virtualbox), Red Hat (firefox and kernel), SUSE (cifs-utils, conmon, fuse-overlayfs, libcontainers-common, podman, libcdio, python-pip, samba, and wavpack), and Ubuntu (rdflib). --------------------------------------------- https://lwn.net/Articles/832405/ ∗∗∗ Synology-SA-20:22 SRM ∗∗∗ --------------------------------------------- A vulnerability allows remote authenticated users to bypass security constraints via a susceptible version of Synology Router Manager (SRM). --------------------------------------------- https://www.synology.com/en-global/support/security/Synology_SA_20_22 ∗∗∗ Wireshark: Mehrere Schwachstellen ermöglichen Denial of Service ∗∗∗ --------------------------------------------- http://www.cert-bund.de/advisoryshort/CB-K20-0922 ∗∗∗ Security Bulletin: Multiple vulnerabilities in Apache Struts affect Tivoli Netcool/OMNIbus WebGUI (CVE-2019-0233, CVE-2019-0230) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-… ∗∗∗ Security Bulletin: Publicly disclosed vulnerability from Kernel affects IBM Netezza Host Management ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-publicly-disclosed-vulner… ∗∗∗ Security Bulletin: Multiple vulnerabilities in IBM Java Runtime affect IBM Spectrum Conductor and IBM Spectrum Conductor with Spark ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-… ∗∗∗ Security Bulletin: Multiple Vulnerabilities Have Been Identified In IBM Security Verify Privilege Manager previously known as IBM Security Privilege Manager ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-… ∗∗∗ Security Bulletin: Publicly disclosed vulnerabilities from Kernel affect IBM Netezza Host Management ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-publicly-disclosed-vulner… ∗∗∗ Security Bulletin: Publicly disclosed vulnerability from Kernel affects IBM Netezza Host Management ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-publicly-disclosed-vulner… ∗∗∗ Security Bulletin: Publicly disclosed vulnerabilities from Kernel affect IBM Netezza Host Management ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-publicly-disclosed-vulner… ∗∗∗ Security Bulletin: Multiple Vulnerabilities Have Been Identified In IBM Security Verify Privilege Vault previously known as IBM Security Secret Server ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-… ∗∗∗ Security Bulletin: Publicly disclosed vulnerability from Kernel affects IBM Netezza Host Management ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-publicly-disclosed-vulner… ∗∗∗ Security Bulletin: Multiple vulnerabilities affect IBM Tivoli Monitoring embedded WebSphere Application and IHS server ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-… -- CERT.at Daily mailing list Listinfo: https://lists.cert.at/cgi-bin/mailman/listinfo/daily

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Tageszusammenfassung - 23.09.2020
by Daily end-of-shift report 23 Sep '20

23 Sep '20

===================== = End-of-Day report = ===================== Timeframe: Dienstag 22-09-2020 18:00 − Mittwoch 23-09-2020 18:00 Handler: Stephan Richter Co-Handler: n/a ===================== = News = ===================== ∗∗∗ Security-Checkliste Webbrowser ∗∗∗ --------------------------------------------- Ihr Browser kommt, auch ohne Surfen auf zwielichtigen Websites, sehr häufig mit Schadcode in Kontakt. Umso wichtiger ist es, ihn maximal sicher einzustellen. --------------------------------------------- https://heise.de/-4886750 ∗∗∗ Aufgepasst: Emotet versteckt sich nun in passwortgeschützten Archiven ∗∗∗ --------------------------------------------- Die Drahtzieher hinter Emotet haben eine neue Kampagne gestartet, um die Malware zu verbreiten. Dieses Mal haben Sie aber bei einer Sache gepennt. --------------------------------------------- https://heise.de/-4909712 ∗∗∗ Betrügerische Kredite von Continental Bank und Eran Finance! ∗∗∗ --------------------------------------------- Durch die Auswirkungen der Corona-Krise sind immer mehr Menschen von Finanzhilfen abhängig. Kein Wunder, dass Kredite und Darlehen beliebter werden und dass auch Cyberkriminelle betrügerischen Kredite anbieten. So zum Beispiel der Kreditvermittler royal-eranfinance.com und die Bank continental-groupe.com. Die beiden vermeintlichen Unternehmen arbeiten zusammen. Doch statt Kredite auszuzahlen, stehlen die Unternehmen die Identität der Opfer und verlangen Vorschusszahlungen. --------------------------------------------- https://www.watchlist-internet.at/news/betruegerische-kredite-von-continent… ∗∗∗ Case Study: Emotet Thread Hijacking, an Email Attack Technique ∗∗∗ --------------------------------------------- Thread hijacking, recently used to distribute Emotet, uses stolen copies of messages collected from infected users' email clients to attack others. --------------------------------------------- https://unit42.paloaltonetworks.com/emotet-thread-hijacking/ ∗∗∗ Linux vulnerabilities: How unpatched servers lead to persistent backdoors ∗∗∗ --------------------------------------------- Vulnerability management is a challenge Humans make mistakes, software has bugs and some of these bugs are exploitable vulnerabilities. The existence of vulnerabilities in software is not a new problem, but as the volume of software in existence grows, so does the number of exploitable vulnerabilities. --------------------------------------------- https://resources.infosecinstitute.com/linux-vulnerabilities-how-unpatched-… ∗∗∗ Looking for sophisticated malware in IoT devices ∗∗∗ --------------------------------------------- Let's talk about the structure of the firmware of an IoT device in order to get a better understanding of the different components. --------------------------------------------- https://securelist.com/looking-for-sophisticated-malware-in-iot-devices/985… ∗∗∗ [SANS ISC] Malicious Word Document with Dynamic Content ∗∗∗ --------------------------------------------- I published the following diary on isc.sans.edu: "Malicious Word Document with Dynamic Content": Here is another malicious Word document that I spotted while hunting. "Another one?" may ask some of our readers. Indeed but malicious documents remain a very common infection vector and you learn a lot when you analyze [...] --------------------------------------------- https://blog.rootshell.be/2020/09/23/sans-isc-malicious-word-document-with-… ===================== = Vulnerabilities = ===================== ∗∗∗ Critical Vulnerabilities Patched in XCloner Backup and Restore Plugin ∗∗∗ --------------------------------------------- On August 14, our Threat Intelligence team discovered several vulnerabilities present in XCloner Backup and Restore, a WordPress plugin installed on over 30,000 sites. This flaw gave authenticated attackers, with subscriber-level or above capabilities, the ability to modify arbitrary files, including PHP files. Doing so would allow an attacker to achieve remote code execution on [...] --------------------------------------------- https://www.wordfence.com/blog/2020/09/critical-vulnerabilities-patched-in-… ∗∗∗ Security updates for Wednesday ∗∗∗ --------------------------------------------- Security updates have been issued by openSUSE (libetpan, libqt4, lilypond, otrs, and perl-DBI), Red Hat (kernel-rt), Slackware (seamonkey), SUSE (grafana, libmspack, openldap2, ovmf, pdns, rubygem-actionpack-5_1, and samba), and Ubuntu (debian-lan-config, ldm, libdbi-perl, and netty-3.9). --------------------------------------------- https://lwn.net/Articles/832276/ ∗∗∗ Samba Issues Patches for Zerologon Vulnerability ∗∗∗ --------------------------------------------- The Samba team has released patches for a critical-severity elevation of privilege vulnerability impacting the Microsoft Windows Netlogon Remote Protocol (MS-NRPC). --------------------------------------------- https://www.securityweek.com/samba-issues-patches-zerologon-vulnerability ∗∗∗ CVE-2020-1472/Zerologon. As an IT manager should I worry? ∗∗∗ --------------------------------------------- TL;DR Yes, apply the update from Microsoft. --------------------------------------------- https://www.pentestpartners.com/security-blog/cve-2020-1472-zerologon-as-an… ∗∗∗ Citrix Hypervisor Security Update ∗∗∗ --------------------------------------------- Several security issues have been identified in Citrix Hypervisor (formerly Citrix XenServer) that may allow privileged code in a guest VM to cause the host to crash or become unresponsive. In addition, unprivileged code in a PV guest VM may be able to [...] --------------------------------------------- https://support.citrix.com/article/CTX282314 ∗∗∗ Security Advisory - Buffer Overflow Vulnerability BootHole in GRUB2 Secure Boot ∗∗∗ --------------------------------------------- http://www.huawei.com/en/psirt/security-advisories/2020/huawei-sa-20200923-… ∗∗∗ Security Advisory - Insufficient Input Validation Vulnerability in Some Huawei Phones ∗∗∗ --------------------------------------------- http://www.huawei.com/en/psirt/security-advisories/2020/huawei-sa-20200923-… ∗∗∗ Security Bulletin: Cross-site scripting vulnerability affect IBM Business Automation Workflow and IBM Business Process Manager (BPM) – CVE-2020-4698 ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-cross-site-scripting-vuln… ∗∗∗ Security Bulletin: IBM Maximo Asset Management is vulnerable to path traversal (CVE-2019-4582) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-maximo-asset-manageme… ∗∗∗ Security Bulletin: A vulneraqbility in SQLite affects IBM Cloud Application Performance Managment R esponse Time Monitoring Agent (CVE-2020-15358) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-a-vulneraqbility-in-sqlit… ∗∗∗ Atlassian Confluence: Schwachstelle ermöglicht Offenlegung von Informationen ∗∗∗ --------------------------------------------- https://www.cert-bund.de/advisoryshort/CB-K20-0920 ∗∗∗ Red Hat Enterprise Linux: Schwachstelle ermöglicht Denial of Service ∗∗∗ --------------------------------------------- https://www.cert-bund.de/advisoryshort/CB-K20-0921 -- CERT.at Daily mailing list Listinfo: https://lists.cert.at/cgi-bin/mailman/listinfo/daily

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Tageszusammenfassung - 22.09.2020
by Daily end-of-shift report 22 Sep '20

22 Sep '20

===================== = End-of-Day report = ===================== Timeframe: Montag 21-09-2020 18:00 − Dienstag 22-09-2020 18:00 Handler: Stephan Richter Co-Handler: n/a ===================== = News = ===================== ∗∗∗ Google Cloud Buckets Exposed in Rampant Misconfiguration ∗∗∗ --------------------------------------------- A too-large percentage of cloud databases containing highly sensitive information are publicly available, an analysis shows. --------------------------------------------- https://threatpost.com/google-cloud-buckets-exposed-misconfiguration/159429/ ∗∗∗ New and improved Security Update Guide! ∗∗∗ --------------------------------------------- We're excited to announce a significant update to the Security Update Guide, our one-stop site for information about all security updates provided by Microsoft. This new version will provide a more intuitive user experience to help protect our customers regardless of what Microsoft products or services they use in their environment. --------------------------------------------- https://msrc-blog.microsoft.com:443/2020/09/21/new-and-improved-security-up… ∗∗∗ Cyberbedrohungen: Kostenlose "Adversary Emulation Plans" für Firmen verfügbar ∗∗∗ --------------------------------------------- Ein neues MITRE-Projekt stellt Informationen bereit, die Red Teams Schritt für Schritt beim Nachstellen realitätsnaher Angriffsszenarien unterstützen sollen. --------------------------------------------- https://heise.de/-4907083 ∗∗∗ instructionsweb.com führt in Abo-Falle ∗∗∗ --------------------------------------------- Die Suche nach einer Gebrauchsanleitung für ein elektronisches Gerät führte Sie zu instructionsweb.com? Sie haben dort schnell und unkompliziert die benötigte Anleitung gefunden? Auch der Preis von 95 Cent ist erschwinglich. Vorsicht: Mit Eingabe Ihrer Kreditkartendaten tappen Sie in eine Abo-Falle, die Sie monatlich € 11,95 kostet! Und: Anleitung gibt's trotz Bezahlung keine! --------------------------------------------- https://www.watchlist-internet.at/news/instructionswebcom-fuehrt-in-abo-fal… ∗∗∗ Does your business have a Well-Known URL for changing passwords? It should! ∗∗∗ --------------------------------------------- If you're a business which has a website that customers access via a password, spend a few minutes create your own .well-known/change-password which points users to the correct place. --------------------------------------------- https://businessinsights.bitdefender.com/business-url-changing-password ∗∗∗ Optimizing Away JavaScript Obfuscation. (arXiv:2009.09170v1 [cs.CR]) ∗∗∗ --------------------------------------------- JavaScript is a popular attack vector for releasing malicious payloads on unsuspecting Internet users. Authors of this malicious JavaScript often employ numerous obfuscation techniques in order to prevent the automatic detection by antivirus and hinder manual analysis by professional malware analysts. Consequently, this paper presents SAFE-Deobs, a JavaScript deobfuscation tool that we have built. --------------------------------------------- https://arxiv.org/abs/2009.09170 ∗∗∗ Microsoft sichert ungeschützten Backend-Server seiner Suchmaschine Bing ∗∗∗ --------------------------------------------- Er gibt 6,5 TByte Daten preis. Es handelt sich ausschließlich um Log-Dateien ohne persönliche Informationen. Microsoft spricht von einer Fehlkonfiguration – dem fraglichen Server fehlte ein Passwort. --------------------------------------------- https://www.zdnet.de/88382854/microsoft-sichert-ungeschuetzten-backend-serv… ===================== = Vulnerabilities = ===================== ∗∗∗ Firefox: Neue Desktop-Versionen beseitigen mögliche Einfallstore für Angreifer ∗∗∗ --------------------------------------------- Mit den Versionen 81 und ESR 78.3 des Webbrowsers Firefox liefert das Mozilla-Team auch diverse Lücken-Fixes aus. --------------------------------------------- https://heise.de/-4909119 ∗∗∗ Security updates for Tuesday ∗∗∗ --------------------------------------------- Security updates have been issued by Mageia (mysql-connector-java), openSUSE (chromium, curl, libqt4, and singularity), Red Hat (bash and kernel), SUSE (python-pip and python3), and Ubuntu (busybox, ceph, freeimage, libofx, libpam-tacplus, linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-gke-4.15, linux-hwe, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon, linux, linux-azure, linux-gcp, linux-oracle, novnc, and tnef). --------------------------------------------- https://lwn.net/Articles/832164/ ∗∗∗ VMware Horizon DaaS: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen ∗∗∗ --------------------------------------------- Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in VMware Horizon DaaS ausnutzen, um Sicherheitsvorkehrungen zu umgehen. --------------------------------------------- https://www.cert-bund.de/advisoryshort/CB-K20-0916 ∗∗∗ Xen Security Advisories ∗∗∗ --------------------------------------------- The Xen Project has released 10 Security Advisories on 2020-09-22. --------------------------------------------- https://xenbits.xen.org/xsa/ ∗∗∗ Security Bulletin: CVE-2020-2590 (deferred from Oracle Jan 2020 CPU) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-cve-2020-2590-deferred-fr… ∗∗∗ Security Bulletin: CVE-2020-2601 (deferred from Oracle Jan 2020 CPU) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-cve-2020-2601-deferred-fr… ∗∗∗ Security Bulletin: IBM Data Risk Manager is affected by multiple vulnerabilities ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-data-risk-manager-is-… ∗∗∗ Security Bulletin: IBM SDK, Java Technology Edition Quarterly CPU – Jul 2020 – Includes Oracle Jul 2020 CPU plus one additional vulnerability ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-sdk-java-technology-e… ∗∗∗ Security Bulletin: CVE-2020-2601 (deferred from Oracle Jan 2020 CPU) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-cve-2020-2601-deferred-fr… ∗∗∗ Security Bulletin: Multiple vulnerabilities in IBM Java SDK affect IBM Cloud Manager with OpenStack ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-… ∗∗∗ Security Bulletin: Apache ZooKeeper as used by IBM QRadar SIEM is vulnerable to information disclosure (CVE-2019-0201) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-apache-zookeeper-as-used-… ∗∗∗ Security Bulletin: CVE-2020-2590 (deferred from Oracle Jan 2020 CPU) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-cve-2020-2590-deferred-fr… ∗∗∗ Security Bulletin: Vulnerabilities in Node.js affect IBM App Connect Enterprise V11 ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-vulnerabilities-in-node-j… ∗∗∗ Security Bulletin: IBM SDK, Java Technology Edition Quarterly CPU – Jul 2020 – Includes Oracle Jul 2020 CPU plus one additional vulnerability ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-sdk-java-technology-e… -- CERT.at Daily mailing list Listinfo: https://lists.cert.at/cgi-bin/mailman/listinfo/daily

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Tageszusammenfassung - 21.09.2020
by Daily end-of-shift report 21 Sep '20

21 Sep '20

===================== = End-of-Day report = ===================== Timeframe: Freitag 18-09-2020 18:00 − Montag 21-09-2020 18:00 Handler: Stephan Richter Co-Handler: n/a ===================== = News = ===================== ∗∗∗ Google App Engine: Redirect-Feature begünstigt Phishing und Malware-Verbreitung ∗∗∗ --------------------------------------------- Googles Cloud-Anwendungsplattform App Engine bietet Kriminellen beim Generieren schädlicher Links viel Freiraum, den diese im Zuge aktiver Angriffe auskosten. --------------------------------------------- https://heise.de/-4906593 ∗∗∗ iOS 14: Private WLAN-Adressen können für Probleme sorgen ∗∗∗ --------------------------------------------- iOS 14 sattelt iPhones automatisch auf zufällige MAC-Adressen um. Das führt in Heim- und Firmennetzen unter Umständen zu Verbindungsstörungen. --------------------------------------------- https://heise.de/-4907542 ∗∗∗ uMatrix wird nicht weiterentwickelt: Repository steht auf "archived" ∗∗∗ --------------------------------------------- Die Browser-Erweiterung uMatrix ist auf GitHub als archiviert markiert worden. Damit endet die Weiterentwicklung der Firewall. --------------------------------------------- https://heise.de/-4906711 ∗∗∗ Windows 10 Health Report: September 2020 issues, Defender fiasco, & more ∗∗∗ --------------------------------------------- This Windows 10 Health Report provides an overview of the problems people are encountering in September 2020 due to new cumulative updates or changes made in the operating system. --------------------------------------------- https://www.bleepingcomputer.com/news/microsoft/windows-10-health-report-se… ∗∗∗ Slightly broken overlay phishing, (Mon, Sep 21st) ∗∗∗ --------------------------------------------- At the Internet Storm Center, we often receive examples of interesting phishing e-mails from our readers. Of course, this is not the only source of interesting malicious messages in our inboxes - sometimes the phishing authors "cut out the middleman" and send their creations directly to us. Last week, this was the case with a slightly unusual (and slightly broken) phishing, which tries to use legitimate pages overlaid with a fake login prompt. --------------------------------------------- https://isc.sans.edu/diary/rss/26586 ∗∗∗ The Hidden PHP Malware that Reinfects Cleaned Files ∗∗∗ --------------------------------------------- Website reinfections are a serious problem for website owners, and it can often be difficult to determine the cause behind the reinfection — especially if you lack access to necessary logs, which is usually the case for shared hosting services. Some of the more common causes of reinfections are issues like cross- site contamination or unpatched website software security vulnerabilities that get re-exploited. --------------------------------------------- https://blog.sucuri.net/2020/09/the-hidden-php-malware-that-reinfects-clean… ∗∗∗ One Part Steganography, Four Redirectors, and a Splash of C2! ∗∗∗ --------------------------------------------- What do you get when you combine Google Images, QR Codes, and Remote Command Execution? This silly project of mine Id like to share with you all, of course! Building off of my security research from my last couple of blogs, I decided to use my research using dynamic web content to proxy traffic over third party image providers, and try to find a valid bi-directional method for sending data between a NATd client and a public server. --------------------------------------------- https://medium.com/@curtbraz/one-part-steganography-four-redirectors-and-a-… ∗∗∗ Is domain name abuse something companies should worry about? ∗∗∗ --------------------------------------------- Should you worry about domain name abuse? For the most part it depends on what kind of company you are and what you expect to encounter. --------------------------------------------- https://blog.malwarebytes.com/business-2/2020/09/is-domain-name-abuse-somet… ∗∗∗ The Return of Raining SYSTEM Shells with Citrix Workspace app ∗∗∗ --------------------------------------------- TL;DR Back in July I documented a new Citrix Workspace vulnerability that allowed attackers to remotely execute arbitrary commands under the SYSTEM account. Well after some further investigation on the [...] --------------------------------------------- https://www.pentestpartners.com/security-blog/the-return-of-raining-system-… ∗∗∗ Code execution, defense evasion are top tactics used in critical attacks against corporate endpoints ∗∗∗ --------------------------------------------- Cisco examines MITRE ATT&CK data to suggest the threat vectors enterprise security staff should focus their efforts on. --------------------------------------------- https://www.zdnet.com/article/defense-evasion-code-execution-are-the-top-at… ∗∗∗ Rückblick auf das zweite Drittel 2020 ∗∗∗ --------------------------------------------- Anders als das erste Jahresdrittel, begann das zweite wesentlich weniger dramatisch, was IT-Sicherheit angeht. Neben Citrix, dem auch im 2. Jahresdrittel unsere erste anlassbezogene Aussendung zu verdanken war, kam auch eine andere alte Schwachstelle zu neuem "Ruhm". --------------------------------------------- https://cert.at/de/blog/2020/9/ruckblick-auf-das-zweite-drittel-2020 ===================== = Vulnerabilities = ===================== ∗∗∗ Sicherheitslücke: Mobiler Firefox-Browser führte Befehle aus dem WLAN aus ∗∗∗ --------------------------------------------- Im gleichen WLAN konnten Angreifer den mobilen Firefox-Browser unter Android beliebige Webseiten oder andere Apps öffnen lassen - ohne Nutzerinteraktion. --------------------------------------------- https://www.golem.de/news/sicherheitsluecke-mobiler-firefox-browser-fuehrte… ∗∗∗ Micropatch for Zerologon, the "perfect" Windows vulnerability (CVE-2020-1472) ∗∗∗ --------------------------------------------- The Zerologon vulnerability allows an attacker with network access to a Windows Domain Controller to quickly and reliably take complete control of the Windows domain. As such, it is a perfect vulnerability for any attacker and a nightmare for defenders. --------------------------------------------- https://blog.0patch.com/2020/09/micropatch-for-zerologon-perfect.html ∗∗∗ Security updates for Monday ∗∗∗ --------------------------------------------- Security updates have been issued by Debian (inspircd and modsecurity), Fedora (chromium, cryptsetup, gnutls, mingw-libxml2, and seamonkey), openSUSE (ark, chromium, claws-mail, docker-distribution, fossil, hylafax+, inn, knot, libetpan, libjpeg-turbo, libqt4, librepo, libvirt, libxml2, lilypond, mumble, openldap2, otrs, pdns-recursor, perl-DBI, python-Flask-Cors, singularity, slurm_18_08, and virtualbox), SUSE (jasper, less, ovmf, and rubygem-actionview-4_2), and Ubuntu (sa-exim). --------------------------------------------- https://lwn.net/Articles/832080/ ∗∗∗ MISP 2.4.132 released (security fix CVE-2020-25766 and bugs fixed) ∗∗∗ --------------------------------------------- A new version of MISP (2.4.132) has been released with several bugs fixed including an important security fix CVE-2020-25766. --------------------------------------------- https://www.misp-project.org/2020/09/21/MISP.2.4.132.released.html ∗∗∗ B-swiss 3 Digital Signage System 3.6.5 Backdoor Remote Code Execution ∗∗∗ --------------------------------------------- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5590.php ∗∗∗ B-swiss 3 Digital Signage System 3.6.5 CSRF Add Maintenance Admin ∗∗∗ --------------------------------------------- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5589.php ∗∗∗ B-swiss 3 Digital Signage System 3.6.5 Database Disclosure ∗∗∗ --------------------------------------------- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5588.php ∗∗∗ Security Bulletin: Denial of Service with HTTP/2 in IBM DataPower Gateway (CVE-2020-4579) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-denial-of-service-with-ht… ∗∗∗ Security Bulletin: IBM Business Automation Content Analyzer is affected by Insecure Cookie vulnerability ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-business-automation-c… ∗∗∗ Security Bulletin: Denial of Service with HTTP/2 in IBM DataPower Gateway (CVE-2020-4581) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-denial-of-service-with-ht… ∗∗∗ Security Bulletin: Denial of Service in IBM DataPower Gateway (CVE-2020-4580) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-denial-of-service-in-ibm-… ∗∗∗ Security Bulletin: Vulnerability in bind (CVE-2020-8616 and CVE-2020-8617). ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-vulnerability-in-bind-cve… ∗∗∗ Security Bulletin: Vulnerability in ntp (CVE-2020-11868 and CVE-2020-13817). ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-vulnerability-in-ntp-cve-… -- CERT.at Daily mailing list Listinfo: https://lists.cert.at/cgi-bin/mailman/listinfo/daily

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Tageszusammenfassung - 18.09.2020
by Daily end-of-shift report 18 Sep '20

18 Sep '20

===================== = End-of-Day report = ===================== Timeframe: Donnerstag 17-09-2020 18:00 − Freitag 18-09-2020 18:00 Handler: Thomas Pribitzer Co-Handler: n/a ===================== = News = ===================== ∗∗∗ Maze ransomware now encrypts via virtual machines to evade detection ∗∗∗ --------------------------------------------- The Maze ransomware operators have adopted a tactic previously used by the Ragnar Locker gang; to encrypt a computer from within a virtual machine. --------------------------------------------- https://www.bleepingcomputer.com/news/security/maze-ransomware-now-encrypts… ∗∗∗ Microsoft removes Windows Defender ability after security concerns ∗∗∗ --------------------------------------------- Microsoft has removed the ability to download files using Windows Defender after it was demonstrated how it could be used by attackers to download malware onto a computer. --------------------------------------------- https://www.bleepingcomputer.com/news/microsoft/microsoft-removes-windows-d… ∗∗∗ Mozi Botnet Accounts for Majority of IoT Traffic ∗∗∗ --------------------------------------------- Mozi’s spike comes amid a huge increase in overall IoT botnet activity. --------------------------------------------- https://threatpost.com/mozi-botnet-majority-iot-traffic/159337/ ∗∗∗ Ransomware-Angriffe als Folge von Shitrix ∗∗∗ --------------------------------------------- Monate nach dem Auftauchen der kritischen Sicherheitslücke im Citrix Application Delivery Controller (ADC) und NetScaler Gateway (CVE-2019-19781, auch als “Shitrix“ bekannt) werden nun immer mehr Fälle bekannt, in denen die Lücke sehr früh ausgenutzt, jedoch erst sehr viel später lukrativ verwendet wurde bzw. aktuell wird. --------------------------------------------- https://www.hisolutions.com/detail/ransomware-angriffe-als-folge-von-shitrix ∗∗∗ Identitätsdiebstahl: Das sind die gängigsten Betrugsmaschen ∗∗∗ --------------------------------------------- Ausweiskopien und fremde Identitäten sind im Bereich der Internetkriminalität ein begehrtes Gut. Denn so können Kriminelle unter falschem Namen Straftaten begehen und bleiben selbst unentdeckt. --------------------------------------------- https://www.watchlist-internet.at/news/identitaetsdiebstahl-das-sind-die-ga… ===================== = Vulnerabilities = ===================== ∗∗∗ Backdoors in Video-Encodern auf Huawei-Chips entdeckt - Ursprung unbekannt ∗∗∗ --------------------------------------------- Ein Sicherheitsforscher ist auf mehrere kritische Sicherheitslücken gestoßen, die Hardware-Video-Encoder angreifbar machen. --------------------------------------------- https://heise.de/-4905641 ∗∗∗ Security updates for Friday ∗∗∗ --------------------------------------------- Security updates have been issued by Arch Linux (chromium and netbeans), Oracle (mysql:8.0 and thunderbird), SUSE (rubygem-rack and samba), and Ubuntu (apng2gif, gnupg2, libemail-address-list-perl, libproxy, pulseaudio, pure-ftpd, samba, and xawtv). --------------------------------------------- https://lwn.net/Articles/831853/ ∗∗∗ Cisco Content Security Management Appliance and Cisco Email Security Appliance Information Disclosure Vulnerability ∗∗∗ --------------------------------------------- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco… ∗∗∗ Security Bulletin: IBM OpenPages with Watson has addressed a Cross-Site Scripting (XSS) vulnerability (CVE-2020-4443) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-openpages-with-watson… ∗∗∗ Security Bulletin: A vulnerability in IBM Java Runtime affect Financial Transaction Manager for Digital Payments (CVE-2020-2654) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-a-vulnerability-in-ibm-ja… ∗∗∗ Security Bulletin: WebSphere Application Server is vulnerable to an information exposure vulnerability (CVE-2020-4643) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-websphere-application-ser… ∗∗∗ Security Bulletin: IBM OpenPages with Watson has addressed a reverse tabnabbing vulnerability (CVE-2020-4440) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-openpages-with-watson… ∗∗∗ Pivotal spring-boot: Schwachstelle ermöglicht Umgehung von Sicherheitsvorkehrungen ∗∗∗ --------------------------------------------- http://www.cert-bund.de/advisoryshort/CB-K20-0911 ∗∗∗ Atlassian Jira Software: Schwachstelle ermöglicht Offenlegung von Informationen ∗∗∗ --------------------------------------------- http://www.cert-bund.de/advisoryshort/CB-K20-0910 -- CERT.at Daily mailing list Listinfo: https://lists.cert.at/cgi-bin/mailman/listinfo/daily

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Tageszusammenfassung - 17.09.2020
by Daily end-of-shift report 17 Sep '20

17 Sep '20

===================== = End-of-Day report = ===================== Timeframe: Mittwoch 16-09-2020 18:00 − Donnerstag 17-09-2020 18:00 Handler: Thomas Pribitzer Co-Handler: Stephan Richter ===================== = News = ===================== ∗∗∗ Cyber-Angriff auf Uniklinik Düsseldorf: BSI warnt vor akuter Ausnutzung bekannter Schwachstelle ∗∗∗ --------------------------------------------- Am 10. September 2020 kam es zu einem IT-Sicherheitsvorfall im Universitätsklinikum Düsseldorf (UKD). Gemäß BSI-Gesetz hat das UKD das Bundesamt für Sicherheit in der Informationstechnik (BSI) über diesen Vorfall informiert. [...] In diesem Zusammenhang weist das BSI mit Nachdruck darauf hin, dass derzeit eine seit Januar 2020 bekannte Schwachstelle (CVE-2019-19781) in VPN-Produkten der Firma Citrix für Cyber-Angriffe ausgenutzt wird. Dem BSI werden zunehmend Vorfälle bekannt, bei denen Citrix-Systeme bereits vor der Installation der im Januar 2020 bereitgestellten Sicherheitsupdates kompromittiert wurden. Dadurch haben Angreifer auch nach Schließung der Sicherheitslücke weiterhin Zugriff auf das System und dahinterliegende Netzwerke. Diese Möglichkeit wird aktuell vermehrt ausgenutzt, um Angriffe auf betroffene Organisationen durchzuführen. --------------------------------------------- https://www.bsi.bund.de/DE/Presse/Pressemitteilungen/Presse2020/UKDuesseldo… ∗∗∗ Evasive URLs in Spam ∗∗∗ --------------------------------------------- Cybercriminals are continuously evolving their tools, tactics, and techniques to evade spam detection systems. We recently observed some spam campaigns that heavily relied on URL obfuscation in email messages. --------------------------------------------- https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/evasive-url… ∗∗∗ phpbash – A Terminal Emulator Web Shell ∗∗∗ --------------------------------------------- It’s common for hackers to utilize post-compromise tools that contain a graphical user interface (GUI) that can be loaded in the web browser. A GUI generally makes the tool easier to use — and certainly more visually appealing than just raw text. One example of web malware that uses GUIs are PHP webshells like r57. --------------------------------------------- https://blog.sucuri.net/2020/09/phpbash-terminal-editor-web-shell.html ∗∗∗ GuLoaders VM-Exit Instruction Hammering explained ∗∗∗ --------------------------------------------- In Joe Sandbox Cloud Basic, our community version of Joe Sandbox, we often get very interesting and recent malware samples. On the September 16th, 2020 we came across a new GuLoader variant (MD5: 01a54f73856cfb74a3bbba47bcec227b). GuLoader is a malware loader well known for its anti-evasion techniques. --------------------------------------------- http://blog.joesecurity.org/2020/09/guloaders-vm-exit-instruction-hammering… ===================== = Vulnerabilities = ===================== ∗∗∗ Schadcode per Word-Datei: Microsoft flickt Office für Mac ∗∗∗ --------------------------------------------- Microsoft hat die macOS-Version seiner Office-Suite aktualisiert. Die Updates schließen Schwachstellen, die das Ausführen von Schadcode ermöglichen. --------------------------------------------- https://heise.de/-4904475 ∗∗∗ Apple iOS & iPadOS: Mehrere Schwachstellen ∗∗∗ --------------------------------------------- Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Apple iOS und Apple iPadOS ausnutzen, um beliebigen Programmcode auszuführen, einen Denial of Service Zustand herbeizuführen, Informationen offenzulegen, einen Cross-Site Scripting Angriff durchzuführen, Sicherheitsvorkehrungen zu umgehen oder sonstige Auswirkungen zu verursachen. --------------------------------------------- https://www.cert-bund.de/advisoryshort/CB-K20-0907 ∗∗∗ Drupal: Mehrere Schwachstellen ∗∗∗ --------------------------------------------- Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Drupal ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen, Sicherheitsvorkehrungen zu umgehen und Informationen offenzulegen. --------------------------------------------- https://www.cert-bund.de/advisoryshort/CB-K20-0906 ∗∗∗ Vulnerability Spotlight: Remote code execution vulnerability Apple Safari ∗∗∗ --------------------------------------------- The Apple Safari web browser contains a remote code execution vulnerability in its Webkit feature. Specifically, an attacker could trigger a use-after-free condition in WebCore, the DOM-rendering system for Webkit used in Safari. This could give the attacker the ability to execute remote code on the victim machine. --------------------------------------------- https://blog.talosintelligence.com/2020/09/vuln-spotlight-apple-safari-sept… ∗∗∗ High-Severity Vulnerabilities Patched in Discount Rules for WooCommerce ∗∗∗ --------------------------------------------- On August 20, 2020, the Wordfence Threat Intelligence team was made aware of several vulnerabilities that had been patched in Discount Rules for WooCommerce, a WordPress plugin installed on over 40,000 sites. --------------------------------------------- https://www.wordfence.com/blog/2020/09/high-severity-vulnerabilities-patche… ∗∗∗ Security updates for Thursday ∗∗∗ --------------------------------------------- Security updates have been issued by Fedora (dotnet3.1, kernel, mbedtls, and python35), Mageia (libraw), openSUSE (mumble), SUSE (libsolv, libzypp, and perl-DBI), and Ubuntu (libdbi-perl, libphp-phpmailer, mcabber, ncmpc, openssl, openssl1.0, qemu, samba, storebackup, and util-linux). --------------------------------------------- https://lwn.net/Articles/831720/ ∗∗∗ Synology-SA-20:21 Zerologon ∗∗∗ --------------------------------------------- A vulnerability allows remote attackers to bypass security constraints via a susceptible version of Synology Directory Server. --------------------------------------------- https://www.synology.com/en-global/support/security/Synology_SA_20_21 ∗∗∗ Citrix Application Delivery Controller, Citrix Gateway, and Citrix SD-WAN WANOP appliance Security Update ∗∗∗ --------------------------------------------- Multiple vulnerabilities have been discovered in Citrix ADC (formerly known as NetScaler ADC), Citrix Gateway (formerly known as NetScaler Gateway) and Citrix SD-WAN WANOP appliance models 4000-WO, 4100-WO, 5000-WO, and 5100-WO. --------------------------------------------- https://support.citrix.com/article/CTX281474 ∗∗∗ Security Bulletin: Vulnerabilities in WebSphere Application Server affect IBM Cloud Orchestrator and IBM Cloud Orchestrator Enterprise ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-vulnerabilities-in-websph… ∗∗∗ Security Bulletin: IBM Aspera Shares 1.9.14 Patch Level 1 and earlier are vulnerable to DOM XSS ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-ibm-aspera-shares-1-9-14-… ∗∗∗ Security Bulletin: Denial of service vulnerability in WebSphere Application Server Liberty (CVE-2020-4590) ∗∗∗ --------------------------------------------- https://www.ibm.com/blogs/psirt/security-bulletin-denial-of-service-vulnera… -- CERT.at Daily mailing list Listinfo: https://lists.cert.at/cgi-bin/mailman/listinfo/daily

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