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Tageszusammenfassung - 05.03.2024
by Daily end-of-shift report 05 Mar '24

05 Mar '24

===================== = End-of-Day report = ===================== Timeframe: Montag 04-03-2024 18:00 − Dienstag 05-03-2024 18:00 Handler: Thomas Pribitzer Co-Handler: n/a ===================== = News = ===================== ∗∗∗ ScreenConnect flaws exploited to drop new ToddleShark malware ∗∗∗ --------------------------------------------- The North Korean APT hacking group Kimsuky is exploiting ScreenConnect flaws, particularly CVE-2024-1708 and CVE-2024-1709, to infect targets with a new malware variant dubbed ToddleShark. --------------------------------------------- https://www.bleepingcomputer.com/news/security/screenconnect-flaws-exploite… ∗∗∗ Network tunneling with… QEMU? ∗∗∗ --------------------------------------------- While investigating an incident, we detected uncommon malicious activity inside one of the systems. We ran an analysis on the artifacts, only to find that the adversary had deployed and launched the QEMU hardware emulator. --------------------------------------------- https://securelist.com/network-tunneling-with-qemu/111803/ ∗∗∗ Warning: Thread Hijacking Attack Targets IT Networks, Stealing NTLM Hashes ∗∗∗ --------------------------------------------- The threat actor known as TA577 has been observed using ZIP archive attachments in phishing emails with an aim to steal NT LAN Manager (NTLM) hashes. --------------------------------------------- https://thehackernews.com/2024/03/warning-thread-hijacking-attack-targets.h… ∗∗∗ Pegasus spyware creator ordered to reveal code used to spy on WhatsApp users ∗∗∗ --------------------------------------------- Meta has won a court case against spyware vendor NSO Group to reveal the Pegasus spyware code that allows spying on WhatsApp users. --------------------------------------------- https://www.malwarebytes.com/blog/news/2024/03/pegasus-spyware-creator-orde… ∗∗∗ AnyDesk: Zugriffsversuche aus Spanien; Unsignierter Client verteilt ∗∗∗ --------------------------------------------- Das Drama bei AnyDesk geht anscheinend weiter, obwohl ich die Hoffnung hatte, das Thema langsam abschließen zu können... --------------------------------------------- https://www.borncity.com/blog/2024/03/05/anydesk-zugriffsversuche-aus-spani… ∗∗∗ WogRAT Malware Exploits aNotepad (Windows, Linux) ∗∗∗ --------------------------------------------- AhnLab Security intelligence Center (ASEC) has recently discovered the distribution of backdoor malware via aNotepad, a free online notepad platform. --------------------------------------------- https://asec.ahnlab.com/en/62446/ ∗∗∗ GhostSec’s joint ransomware operation and evolution of their arsenal ∗∗∗ --------------------------------------------- Cisco Talos observed a surge in GhostSec, a hacking group’s malicious activities since this past year. GhostSec has evolved with a new GhostLocker 2.0 ransomware, a Golang variant of the GhostLocker ransomware. --------------------------------------------- https://blog.talosintelligence.com/ghostsec-ghostlocker2-ransomware/ ∗∗∗ Ransomware: ALPHV/Blackcat betrügt offensichtlich Partner und zieht sich zurück ∗∗∗ --------------------------------------------- Die Fakten legen nahe, dass ALPHV/Blackcat einen Cybercrime-Partner um 22 Millionen US-Dollar betrogen und sich nun zurückgezogen hat. --------------------------------------------- https://heise.de/-9646707 ===================== = Vulnerabilities = ===================== ∗∗∗ Exploit available for new critical TeamCity auth bypass bug, patch now ∗∗∗ --------------------------------------------- A critical vulnerability (CVE-2024-27198) in the TeamCity On-Premises CI/CD solution from JetBrains can let a remote unauthenticated attacker take control of the server with administrative permissions. --------------------------------------------- https://www.bleepingcomputer.com/news/security/exploit-available-for-new-cr… ∗∗∗ Multiple vulnerabilities in RT-Thread RTOS ∗∗∗ --------------------------------------------- I reviewed RT-Thread’s source code hosted on GitHub and identified multiple security vulnerabilities that may cause memory corruption and security feature bypass. Their impacts range from denial of service to potential arbitrary code execution. --------------------------------------------- https://security.humanativaspa.it/multiple-vulnerabilities-in-rt-thread-rto… ∗∗∗ Security updates for Tuesday ∗∗∗ --------------------------------------------- Security updates have been issued by Debian (yard), Oracle (buildah and kernel), Red Hat (389-ds:1.4, edk2, frr, gnutls, haproxy, libfastjson, libX11, postgresql:12, sqlite, squid, squid:4, tcpdump, and tomcat), SUSE (apache2-mod_auth_openidc and glibc), and Ubuntu (linux-gke, python-cryptography, and python-django). --------------------------------------------- https://lwn.net/Articles/964450/ ∗∗∗ Zeek Security Tool Vulnerabilities Allow ICS Network Hacking ∗∗∗ --------------------------------------------- Vulnerabilities in a plugin for the Zeek network security monitoring tool can be exploited in attacks aimed at ICS environments. --------------------------------------------- https://www.securityweek.com/zeek-security-tool-vulnerabilities-allow-ics-n… ∗∗∗ VU#782720: TCG TPM2.0 implementations vulnerable to memory corruption ∗∗∗ --------------------------------------------- https://kb.cert.org/vuls/id/782720 ∗∗∗ IBM Security Bulletins ∗∗∗ --------------------------------------------- https://www.ibm.com/support/pages/bulletin/ ∗∗∗ Security Vulnerabilities fixed in Thunderbird 115.8.1 ∗∗∗ --------------------------------------------- https://www.mozilla.org/en-US/security/advisories/mfsa2024-11/ ∗∗∗ Nice Linear eMerge E3-Series ∗∗∗ --------------------------------------------- https://www.cisa.gov/news-events/ics-advisories/icsa-24-065-01 ∗∗∗ Santesoft Sante FFT Imaging ∗∗∗ --------------------------------------------- https://www.cisa.gov/news-events/ics-medical-advisories/icsma-24-065-01 ∗∗∗ K000138814 : OpenLDAP vulnerability CVE-2023-2953 ∗∗∗ --------------------------------------------- https://my.f5.com/manage/s/article/K000138814 ∗∗∗ Patchday: Kritische Schadcode-Lücken bedrohen Android 12, 13 und 14 ∗∗∗ --------------------------------------------- https://heise.de/-9646073 -- CERT.at Daily mailing list Listinfo: https://lists.cert.at/cgi-bin/mailman/listinfo/daily

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Tageszusammenfassung - 04.03.2024
by Daily end-of-shift report 04 Mar '24

04 Mar '24

===================== = End-of-Day report = ===================== Timeframe: Freitag 01-03-2024 18:00 − Montag 04-03-2024 18:00 Handler: Thomas Pribitzer Co-Handler: Michael Schlagenhaufer ===================== = News = ===================== ∗∗∗ Gemini, ChatGPT und LLaVA: Neuer Wurm verbreitet sich in KI-Ökosystemen selbst ∗∗∗ --------------------------------------------- Forscher haben einen KI-Wurm entwickelt. Dieser kann nicht nur sensible Daten abgreifen, sondern sich auch selbst in einem GenAI-Ökosystem ausbreiten. --------------------------------------------- https://www.golem.de/news/gemini-chatgpt-und-llava-neuer-wurm-verbreitet-si… ∗∗∗ Hunting For Integer Overflows In Web Servers ∗∗∗ --------------------------------------------- In order to overflow something (e.g. an integer overflow) we clearly need some way to be able to do that (think pouring water from a kettle into a cup), and that’s the source (us using the kettle) to overflow the cup. Cup of tea aside, what things can be accessed remotely and take user input (those sources)? Web servers! This blog post title does not lie! --------------------------------------------- https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/hunting-for… ∗∗∗ New Wave of SocGholish Infections Impersonates WordPress Plugins ∗∗∗ --------------------------------------------- SocGholish malware, otherwise known as “fake browser updates”, is one of the most common types of malware infections that we see on hacked websites. This long-standing malware campaign leverages a JavaScript malware framework that has been in use since at least 2017. The malware attempts to trick unsuspecting users into downloading what is actually a Remote Access Trojan (RAT) onto their computers, which is often the first stage in a ransomware infection. Late last week our incident response team identified a fresh wave of SocGholish (fake browser update) infections targeting WordPress websites. --------------------------------------------- https://blog.sucuri.net/2024/03/new-wave-of-socgholish-infections-impersona… ∗∗∗ Rise in Deceptive PDF: The Gateway to Malicious Payloads ∗∗∗ --------------------------------------------- McAfee Labs has recently observed a significant surge in the distribution of prominent malware through PDF files. Malware is not solely sourced from dubious websites or downloads; certain instances of malware may reside within apparently harmless emails, particularly within the PDF file attachments accompanying them. The subsequent trend observed in the past three months through McAfee telemetry pertains to the prevalence of malware distributed through non-portable executable (non-PE) vectors. --------------------------------------------- https://www.mcafee.com/blogs/other-blogs/mcafee-labs/rise-in-deceptive-pdf-… ∗∗∗ Remote Stuxnet-Style Attack Possible With Web-Based PLC Malware: Researchers ∗∗∗ --------------------------------------------- A team of researchers has developed malware designed to target modern programmable logic controllers (PLCs) in an effort to demonstrate that remote Stuxnet-style attacks can be launched against such industrial control systems (ICS). --------------------------------------------- https://www.securityweek.com/remote-stuxnet-style-attack-possible-with-web-… ∗∗∗ Vorsicht vor falschen Paketbenachrichtigungen ∗∗∗ --------------------------------------------- Sie erwarten ein Paket? Prüfen Sie Benachrichtigungen über den Sendungsstatus sehr genau! Derzeit sind gefälschte Paketbenachrichtigungen im Namen aller gängigen Zustelldiensten im Umlauf. Klicken Sie niemals voreilig auf Links in E-Mails und SMS und geben Sie keine Kreditkartendaten preis! --------------------------------------------- https://www.watchlist-internet.at/news/vorsicht-vor-falschen-paketbenachric… ∗∗∗ Threat Brief: WordPress Exploit Leads to Godzilla Web Shell, Discovery & New CVE ∗∗∗ --------------------------------------------- Below is a recent Threat Brief that we shared with our customers. Each year, we produce over 50 detailed Threat Briefs, which follow a format similar to the below. Typically, these reports include specific dates and times to provide comprehensive insights; however, please note that such information has been redacted in this public version. IOCs are available to customers within Event 27236 (uuid – fe12e833-6f0c-45c9-97d6-83337ea6c5d3). --------------------------------------------- https://thedfirreport.com/2024/03/04/threat-brief-wordpress-exploit-leads-t… ∗∗∗ Microsoft schließt ausgenutzte Windows 0-day Schwachstelle CVE-2024-21338 sechs Monate nach Meldung ∗∗∗ --------------------------------------------- Im Februar 2024 hat Microsoft die Schwachstelle CVE-2024-21338 im Kernel von Windows 10/11 und diversen Windows Server-Versionen geschlossen. Super! Der Fehler an der Geschichte: Die Schwachstelle wurde von AVAST im August 2023 gemeldet, und die Schwachstelle wurde zu dieser Zeit als 0-day ausgenutzt. --------------------------------------------- https://www.borncity.com/blog/2024/03/03/microsoft-schliet-ausgenutzte-wind… ∗∗∗ Multistage RA World Ransomware Uses Anti-AV Tactics, Exploits GPO ∗∗∗ --------------------------------------------- The RA World (previously the RA Group) ransomware has managed to successfully breach organizations around the world since its first appearance in April 2023. Although the threat actor casts a wide net with its attacks, many of its targets were in the US, with a smaller number of attacks occurring in countries such as Germany, India, and Taiwan. When it comes to industries, the group focuses its efforts on businesses in the healthcare and financial sectors. --------------------------------------------- https://www.trendmicro.com/en_us/research/24/c/multistage-ra-world-ransomwa… ∗∗∗ GitHub als Malware-Schleuder ∗∗∗ --------------------------------------------- Eine Sicherheitsfirma berichtet über eine neue Masche, wie Schadcode im großen Stil verteilt wird: über kompromittierte Klon-Repositories auf GitHub. --------------------------------------------- https://heise.de/-9644525 ===================== = Vulnerabilities = ===================== ∗∗∗ Critical vulnerabilities in TeamCity JetBrains fixed, release of technical details imminent, patch quickly! (CVE-2024-27198, CVE-2024-27199) ∗∗∗ --------------------------------------------- JetBrains has fixed two critical security vulnerabilities (CVE-2024-27198, CVE-2024-27199) affecting TeamCity On-Premises and is urging customers to patch them immediately. --------------------------------------------- https://www.helpnetsecurity.com/2024/03/04/cve-2024-27198-cve-2024-27199/ ∗∗∗ Security updates for Monday ∗∗∗ --------------------------------------------- Security updates have been issued by Debian (firefox-esr and thunderbird), Fedora (dotnet6.0, dotnet8.0, and mod_auth_openidc), Gentoo (Blender, Tox, and UltraJSON), Oracle (kernel), Red Hat (edk2), SUSE (sendmail and zabbix), and Ubuntu (nodejs and thunderbird). --------------------------------------------- https://lwn.net/Articles/964376/ ∗∗∗ Hikvision Patches High-Severity Vulnerability in Security Management System ∗∗∗ --------------------------------------------- Chinese video surveillance equipment manufacturer Hikvision has announced patches for two vulnerabilities in its security management system HikCentral Professional. The most important of these flaws is CVE-2024-25063, a high-severity bug that could lead to unauthorized access to certain URLs. --------------------------------------------- https://www.securityweek.com/hikvision-patches-high-severity-vulnerability-… ∗∗∗ Aruba: Codeschmuggel durch Sicherheitslücken im Clearpass Manager möglich ∗∗∗ --------------------------------------------- Im Aruba Clearpass Manager von HPE klaffen teils kritische Sicherheitslücken. Updates zum Schließen stehen bereit. [..] Eine Lücke betrifft den mitgelieferten Apache Struts-Server und erlaubt das Einschleusen von Befehlen (CVE-2023-50164, CVSS 9.8, Risiko "kritisch"). --------------------------------------------- https://heise.de/-9644607 ∗∗∗ Solarwinds: Schadcode-Lücke in Security Event Manager ∗∗∗ --------------------------------------------- Sicherheitslücken in Solarwinds Secure Event Manager können Angreifer zum Einschleusen von Schadcode missbrauchen. Updates stopfen die Lecks. --------------------------------------------- https://heise.de/-9644643 ∗∗∗ Angreifer können Systeme mit Dell-Software kompromittieren ∗∗∗ --------------------------------------------- Es sind wichtige Sicherheitspatches für Dell Data Protection Advisor, iDRAC8 und Secure Connect Gateway erschienen. --------------------------------------------- https://heise.de/-9644978 ∗∗∗ IBM Security Bulletins ∗∗∗ --------------------------------------------- https://www.ibm.com/support/pages/bulletin/ ∗∗∗ F5: K000138726 : Linux kernel vulnerability CVE-2023-3611 ∗∗∗ --------------------------------------------- https://my.f5.com/manage/s/article/K000138726 -- CERT.at Daily mailing list Listinfo: https://lists.cert.at/cgi-bin/mailman/listinfo/daily

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Tageszusammenfassung - 01.03.2024
by Daily end-of-shift report 01 Mar '24

01 Mar '24

===================== = End-of-Day report = ===================== Timeframe: Donnerstag 29-02-2024 18:00 − Freitag 01-03-2024 18:00 Handler: Thomas Pribitzer Co-Handler: Michael Schlagenhaufer ===================== = News = ===================== ∗∗∗ CISA cautions against using hacked Ivanti VPN gateways even after factory resets ∗∗∗ --------------------------------------------- The U.S. Cybersecurity and Infrastructure Security Agency (CISA) revealed today that attackers who hack Ivanti VPN appliances using one of multiple actively exploited vulnerabilities may be able to maintain root persistence even after performing factory resets. --------------------------------------------- https://www.bleepingcomputer.com/news/security/cisa-cautions-against-using-… ∗∗∗ Angriffe auf Windows-Lücke – Update seit einem halben Jahr verfügbar ∗∗∗ --------------------------------------------- Die CISA warnt vor Angriffen auf eine Lücke in Microsofts Streaming Service. Updates gibt es seit mehr als einem halben Jahr. --------------------------------------------- https://heise.de/-9643763 ∗∗∗ Wireshark Tutorial: Exporting Objects From a Pcap ∗∗∗ --------------------------------------------- This Wireshark tutorial guides the reader in exporting different packet capture objects. It builds on a foundation of malware traffic analysis skills. --------------------------------------------- https://unit42.paloaltonetworks.com/using-wireshark-exporting-objects-from-… ∗∗∗ Blue Team toolkit: 6 open-source tools to assess and enhance corporate defenses ∗∗∗ --------------------------------------------- Here’s how the blue team wards off red teamers and a few open-source tools it may leverage to identify chinks in the corporate armor. --------------------------------------------- https://www.welivesecurity.com/en/business-security/blue-team-toolkit-6-ope… ∗∗∗ Researchers spot new infrastructure likely used for Predator spyware ∗∗∗ --------------------------------------------- Cybersecurity researchers have identified new infrastructure likely used by the operators of the commercial spyware known as Predator in at least 11 countries. --------------------------------------------- https://therecord.media/new-predator-spyware-infrastructure-identified ∗∗∗ Covert TLS n-day backdoors: SparkCockpit & SparkTar ∗∗∗ --------------------------------------------- This report documents two covert TLS-based backdoors identified by NVISO: SparkCockpit & SparkTar. Both backdoors employ selective interception of TLS communication towards the legitimate Ivanti server applications. --------------------------------------------- https://blog.nviso.eu/2024/03/01/covert-tls-n-day-backdoors-sparkcockpit-sp… ∗∗∗ How To Hunt For UEFI Malware Using Velociraptor ∗∗∗ --------------------------------------------- UEFI threats have historically been limited in number and mostly implemented bynation state actors as stealthy persistence. However, the recent proliferationof Black Lotus on the dark web, Trickbot enumeration module (late 2022), andGlupteba (November 2023) indicates that this historical trend may be changing. With this context, it is becoming important for security practitioners to understand visibility and collection capabilities for UEFI threats. This post covers some of these areas and presents several recent Velociraptor artifacts that can be used in the field. --------------------------------------------- https://www.rapid7.com/blog/post/2024/02/29/how-to-hunt-for-uefi-malware-us… ∗∗∗ Bluetooth Unleashed: Syncing Up with the RattaGATTa Series! Part 1 ∗∗∗ --------------------------------------------- This post introduces GreyNoise Labs series on BTLE, highlighting its privacy and security implications, as well as the journey from basic usage to sophisticated system development, offering insights for cybersecurity professionals and tech enthusiasts alike. --------------------------------------------- https://www.greynoise.io/blog/bluetooth-unleashed-syncing-up-with-the-ratta… ===================== = Vulnerabilities = ===================== ∗∗∗ Security updates for Friday ∗∗∗ --------------------------------------------- Security updates have been issued by CentOS (firefox and thunderbird), Debian (gsoap, python-django, and wireshark), Fedora (dotnet7.0 and gifsicle), Mageia (sympa), Oracle (postgresql:10, postgresql:12, thunderbird, and unbound), Red Hat (kpatch-patch, python-pillow, and squid:4), SUSE (nodejs12, nodejs14, nodejs16, nodejs18, and openvswitch3), and Ubuntu (linux-azure, linux-lowlatency, linux-starfive-6.5, php-guzzlehttp-psr7, and php-nyholm-psr7). --------------------------------------------- https://lwn.net/Articles/964166/ ∗∗∗ Sicherheitsupdate: Nividia-Grafikkarten-Treiber als Einfallstor für Angreifer ∗∗∗ --------------------------------------------- Insgesamt hat Nvidia mit den Updates acht Sicherheitslücken geschlossen. Davon sind vier (CVE-2024-0071, CVE-2024-0073, CVE-2024-0075, CVE-2024-0077) mit dem Bedrohungsgrad "hoch" eingestuft. An diesen Stellen können Angreifer auf einem nicht näher beschriebenen Weg Speicherfehler auslösen und so Schadcode auf Systeme schieben und ausführen. Im Anschluss gelten Computer in der Regel als vollständig kompromittiert. --------------------------------------------- https://heise.de/-9643306 ∗∗∗ IBM Security Bulletins ∗∗∗ --------------------------------------------- https://www.ibm.com/support/pages/bulletin/ ∗∗∗ Autodesk: Multiple Vulnerabilities in the Autodesk AutoCAD Desktop Software ∗∗∗ --------------------------------------------- https://www.autodesk.com/trust/security-advisories/adsk-sa-2024-0004 -- CERT.at Daily mailing list Listinfo: https://lists.cert.at/cgi-bin/mailman/listinfo/daily

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Tageszusammenfassung - 29.02.2024
by Daily end-of-shift report 29 Feb '24

29 Feb '24

===================== = End-of-Day report = ===================== Timeframe: Mittwoch 28-02-2024 18:00 − Donnerstag 29-02-2024 18:00 Handler: Thomas Pribitzer Co-Handler: Michael Schlagenhaufer ===================== = News = ===================== ∗∗∗ LockBit ransomware returns to attacks with new encryptors, servers ∗∗∗ --------------------------------------------- The LockBit ransomware gang is once again conducting attacks, using updated encryptors with ransom notes linking to new servers after last weeks law enforcement disruption. --------------------------------------------- https://www.bleepingcomputer.com/news/security/lockbit-ransomware-returns-t… ∗∗∗ Neue Ransomwaregruppe: Angeblicher Cyberangriff auf Epic Games bleibt zweifelhaft ∗∗∗ --------------------------------------------- Die Hackergruppe Mogilevich bietet im Darknet Daten von Epic Games im Umfang von 189 GByte zum Verkauf an. Zweifel an dem Angebot sind jedoch angebracht. --------------------------------------------- https://www.golem.de/news/daten-stehen-zum-verkauf-neue-ransomwaregruppe-ha… ∗∗∗ GTPDOOR Linux Malware Targets Telecoms, Exploiting GPRS Roaming Networks ∗∗∗ --------------------------------------------- Threat hunters have discovered a new Linux malware called GTPDOOR that’s designed to be deployed in telecom networks that are adjacent to GPRS roaming exchanges (GRX). The malware is novel in the fact that it leverages the GPRS Tunnelling Protocol (GTP) for command-and-control (C2) communications. --------------------------------------------- https://thehackernews.com/2024/02/gtpdoor-linux-malware-targets-telecoms.ht… ∗∗∗ New Silver SAML Attack Evades Golden SAML Defenses in Identity Systems ∗∗∗ --------------------------------------------- Cybersecurity researchers have disclosed a new attack technique called Silver SAML that can be successful even in cases where mitigations have been applied against Golden SAML attacks. --------------------------------------------- https://thehackernews.com/2024/02/new-silver-saml-attack-evades-golden.html ∗∗∗ #StopRansomware: Phobos Ransomware ∗∗∗ --------------------------------------------- This joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail various ransomware variants and ransomware threat actors. --------------------------------------------- https://www.cisa.gov/news-events/cybersecurity-advisories/aa24-060a ∗∗∗ ALPHV is singling out healthcare sector, say FBI and CISA ∗∗∗ --------------------------------------------- CISA, FBI and HHS are warning about the ALPHV/ Blackcat ransomware group targeting the healthcare industry. --------------------------------------------- https://www.malwarebytes.com/blog/news/2024/02/alphv-is-singling-out-health… ∗∗∗ GUloader Unmasked: Decrypting the Threat of Malicious SVG Files ∗∗∗ --------------------------------------------- This sophisticated malware loader has garnered attention for its stealthy techniques and ability to evade detection, posing a significant risk to organizations and individuals. --------------------------------------------- https://www.mcafee.com/blogs/other-blogs/mcafee-labs/guloader-unmasked-decr… ∗∗∗ Amazon-Vishing: Vorsicht vor Fake-Amazon-Anrufen! ∗∗∗ --------------------------------------------- Am Telefon geben sich Kriminelle als Amazon-Mitarbeiter:innen aus. Unter verschiedenen Vorwänden bringen sie Sie dazu, TeamViewer oder AnyDesk zu installieren und räumen Ihr Konto leer! Sollten Sie so einen Anruf erhalten, legen Sie auf und blockieren Sie die Nummer. --------------------------------------------- https://www.watchlist-internet.at/news/amazon-vishing-vorsicht-vor-fake-ama… ∗∗∗ ADCS ESC14 Abuse Technique ∗∗∗ --------------------------------------------- In this blog post, we will explore the variations of abuse of explicit certificate mapping in AD, what the requirements are, and how you can protect your environment against it. --------------------------------------------- https://posts.specterops.io/adcs-esc14-abuse-technique-333a004dc2b9 ∗∗∗ The Art of Domain Deception: Bifrosts New Tactic to Deceive Users ∗∗∗ --------------------------------------------- The RAT Bifrost has a new Linux variant that leverages a deceptive domain in order to compromise systems. We analyze this expanded attack surface. --------------------------------------------- https://unit42.paloaltonetworks.com/new-linux-variant-bifrost-malware/ ∗∗∗ Vulnerabilities in business VPNs under the spotlight ∗∗∗ --------------------------------------------- As adversaries increasingly set their sights on vulnerable enterprise VPN software to infiltrate corporate networks, concerns mount about VPNs themselves being a source of cyber risk. --------------------------------------------- https://www.welivesecurity.com/en/business-security/vulnerabilities-busines… ∗∗∗ IT-Sicherheitsprodukte von Sophos verschlucken sich am Schaltjahr ∗∗∗ --------------------------------------------- Aufgrund eines Fehlers können Sophos Endpoint, Home und Server vor dem Besucht legitimer Websites warnen. Erste Lösungen sind bereits verfügbar. --------------------------------------------- https://heise.de/-9642801 ===================== = Vulnerabilities = ===================== ∗∗∗ Security updates for Thursday ∗∗∗ --------------------------------------------- Security updates have been issued by Debian (chromium), Fedora (moodle), Red Hat (kernel, kernel-rt, and postgresql:15), Slackware (wpa_supplicant), SUSE (Java and rear27a), and Ubuntu (libcpanel-json-xs-perl, libuv1, linux-aws, linux-aws-5.15, linux-azure, linux-azure-5.4, linux-lowlatency, linux-lowlatency-hwe-6.5, linux-oem-6.5, python-openstackclient, and unbound). --------------------------------------------- https://lwn.net/Articles/964039/ ∗∗∗ IBM Security Bulletins ∗∗∗ --------------------------------------------- https://www.ibm.com/support/pages/bulletin/ ∗∗∗ 2024-01 Security Bulletin: JSA Series: Multiple vulnerabilities resolved in JSA Applications ∗∗∗ --------------------------------------------- https://supportportal.juniper.net/s/article/2024-01-Security-Bulletin-JSA-S… ∗∗∗ On Demand: JSA Series: Multiple vulnerabilities resolved in Juniper Secure Analytics in 7.5.0 UP7 IF05 ∗∗∗ --------------------------------------------- https://supportportal.juniper.net/s/article/On-Demand-JSA-Series-Multiple-v… ∗∗∗ Delta Electronics CNCSoft-B ∗∗∗ --------------------------------------------- https://www.cisa.gov/news-events/ics-advisories/icsa-24-060-01 ∗∗∗ MicroDicom DICOM Viewer ∗∗∗ --------------------------------------------- https://www.cisa.gov/news-events/ics-medical-advisories/icsma-24-060-01 -- CERT.at Daily mailing list Listinfo: https://lists.cert.at/cgi-bin/mailman/listinfo/daily

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Tageszusammenfassung - 28.02.2024
by Daily end-of-shift report 28 Feb '24

28 Feb '24

===================== = End-of-Day report = ===================== Timeframe: Dienstag 27-02-2024 18:00 − Mittwoch 28-02-2024 18:00 Handler: Thomas Pribitzer Co-Handler: Michael Schlagenhaufer ===================== = News = ===================== ∗∗∗ Ivanti: Enhanced External Integrity Checking Tool to Provide Additional Visibility and Protection for Customers Against Evolving Threat Actor Techniques in Relation to Previously Disclosed Vulnerabilities ∗∗∗ --------------------------------------------- As part of our exhaustive investigation into the recent attack against our customers, Ivanti and Mandiant released findings today regarding evolving threat actor tactics, techniques and procedures (TTPs). These findings were identified in the ongoing analysis of the previously disclosed vulnerabilities affecting Ivanti Connect Secure, Policy Secure and ZTA gateways, and include potential persistence techniques that we are monitoring, even though to date they have not been deployed successfully in the wild. --------------------------------------------- https://www.ivanti.com/blog/enhanced-external-integrity-checking-tool-to-pr… ∗∗∗ Savvy Seahorse gang uses DNS CNAME records to power investor scams ∗∗∗ --------------------------------------------- A threat actor named Savvy Seahorse is abusing CNAME DNS records Domain Name System to create a traffic distribution system that powers financial scam campaigns. --------------------------------------------- https://www.bleepingcomputer.com/news/security/savvy-seahorse-gang-uses-dns… ∗∗∗ Take Downs and the Rest of Us: Do they matter?, (Tue, Feb 27th) ∗∗∗ --------------------------------------------- Last week, the US Department of Justice published a press release entitled "Justice Department Conducts Court-Authorized Disruption of Botnet Controlled by the Russian Federations Main Intelligence Directorate of the General Staff (GRU)". The disruption targeted a botnet built using the "Moobot" malware. According to the press release, this particular botnet focused on routers made by Ubiquity, using well-known default credentials. Why do nation-state actors go after "simple" home devices? --------------------------------------------- https://isc.sans.edu/diary/rss/30694 ∗∗∗ European diplomats targeted by SPIKEDWINE with WINELOADER ∗∗∗ --------------------------------------------- Zscalers ThreatLabz discovered a suspicious PDF file uploaded to VirusTotal from Latvia on January 30th, 2024. This PDF file is masqueraded as an invitation letter from the Ambassador of India, inviting diplomats to a wine-tasting event in February 2024. The PDF also included a link to a fake questionnaire that redirects users to a malicious ZIP archive hosted on a compromised site, initiating the infection chain. --------------------------------------------- https://www.zscaler.com/blogs/security-research/european-diplomats-targeted… ∗∗∗ Hacker-Gruppe fordert Bitcoins: Erpresserische E-Mails enthalten Wohnadresse als Druckmittel ∗∗∗ --------------------------------------------- „Es freut uns sehr dir mitteilen zu können, das du keine Ahnung von Cyber Security Hast und wir dein Handy infizieren konnten“ beginnt ein E-Mail von einer angeblichen Hacker-Gruppe mit dem Namen „Russian Blakmail Army“. Angeblich wurden private Fotos und Inhalte von Ihnen gesammelt. Wenn Sie nicht wollen, dass diese veröffentlicht werden, sollten Sie 1000 Euro an eine Bitcoin-Wallet senden. Ignorieren Sie dieses E-Mail, es handelt sich um Fake. --------------------------------------------- https://www.watchlist-internet.at/news/hacker-gruppe-fordert-bitcoins-erpre… ∗∗∗ Navigating the Cloud: Exploring Lateral Movement Techniques ∗∗∗ --------------------------------------------- We illuminate lateral movement techniques observed in the wild within cloud environments, including Amazon Web Services (AWS), Google Cloud Platform (GCP) and Microsoft Azure. --------------------------------------------- https://unit42.paloaltonetworks.com/cloud-lateral-movement-techniques/ ∗∗∗ Lazarus and the FudModule Rootkit: Beyond BYOVD with an Admin-to-Kernel Zero-Day ∗∗∗ --------------------------------------------- Avast discovered an in-the-wild admin-to-kernel exploit for a previously unknown zero-day vulnerability in the appid.sys AppLocker driver. Thanks to Avast’s prompt report, Microsoft addressed this vulnerability as CVE-2024-21338 in the February Patch Tuesday update. The exploitation activity was orchestrated by the notorious Lazarus Group, with the end goal of establishing a kernel read/write primitive. This primitive enabled Lazarus to perform direct kernel object manipulation in an updated version of their data-only FudModule rootkit, a previous version of which was analyzed by ESET and AhnLab. --------------------------------------------- https://decoded.avast.io/janvojtesek/lazarus-and-the-fudmodule-rootkit-beyo… ∗∗∗ Russian Cyber Actors Use Compromised Routers to Facilitate Cyber Operations ∗∗∗ --------------------------------------------- This advisory provides observed tactics, techniques, and procedures (TTPs), indicators of compromise (IOCs), and recommendations to mitigate the threat posed by APT28 threat actors related to compromised EdgeRouters. --------------------------------------------- https://www.ic3.gov/Media/News/2024/240227.pdf ===================== = Vulnerabilities = ===================== ∗∗∗ Security updates for Wednesday ∗∗∗ --------------------------------------------- Security updates have been issued by Debian (knot-resolver and wpa), Fedora (chromium, kernel, thunderbird, and yarnpkg), Mageia (c-ares), Oracle (firefox, kernel, opensc, postgresql:13, postgresql:15, and thunderbird), Red Hat (edk2, gimp:2.8, and kernel), SUSE (bind, bluez, container-suseconnect, dnsdist, freerdp, gcc12, gcc7, glib2, gnutls, kernel, kubevirt, virt-api-container, virt-controller-container, virt-exportproxy-container, virt-exportserver-container, virt-handler-container, virt-launcher-container, virt-libguestfs-t, libqt5-qtbase, libqt5-qtsvg, nodejs18, nodejs20, openssl, openssl-1_0_0, poppler, python-crcmod, python-cryptography, python-cryptography- vectors, python-pip, python-requests, python3-requests, python311, python39, rabbitmq-c, samba, sccache, shim, SUSE Manager 4.2, SUSE Manager Server 4.2, the Linux-RT Kernel, and thunderbird), and Ubuntu (less, openssl, php7.0, php7.2, php7.4, and tiff). --------------------------------------------- https://lwn.net/Articles/963957/ ∗∗∗ TeamViewer Passwort-Schwachstelle CVE-2024-0819 ∗∗∗ --------------------------------------------- Der Client für Windows sollte dringend auf die Version 15.51.5 aktualisiert werden. Der Hersteller hat einen Sicherheitshinweis veröffentlicht, aus dem hervorgeht, dass ältere Software-Versionen nur einen unvollständigen Schutz der persönlichen Kennworteinstellungen bieten. --------------------------------------------- https://www.borncity.com/blog/2024/02/28/teamviewer-passwort-schwachstelle-… ∗∗∗ Cisco Security Advisories 2024-02-28 ∗∗∗ --------------------------------------------- Security Impact Rating: 2x High, 3x Medium --------------------------------------------- https://sec.cloudapps.cisco.com/security/center/Search.x?publicationTypeIDs… ∗∗∗ IBM Security Bulletins ∗∗∗ --------------------------------------------- https://www.ibm.com/support/pages/bulletin/ ∗∗∗ Checkmk: Werk #16361: Privilege escalation in Windows agent ∗∗∗ --------------------------------------------- https://checkmk.com/werk/16361 ∗∗∗ ARISTA Security Advisory 0093 ∗∗∗ --------------------------------------------- https://www.arista.com/en/support/advisories-notices/security-advisory/1903… ∗∗∗ Wiesemann & Theis: Multiple products prone to unquoted search path ∗∗∗ --------------------------------------------- https://cert.vde.com/de/advisories/VDE-2024-018/ ∗∗∗ F5: K000138731 : Linux vulnerability CVE-2023-3776 ∗∗∗ --------------------------------------------- https://my.f5.com/manage/s/article/K000138731 ∗∗∗ Google Chrome: Sicherheitsupdate bessert vier Schwachstellen aus ∗∗∗ --------------------------------------------- https://heise.de/-9641080 -- CERT.at Daily mailing list Listinfo: https://lists.cert.at/cgi-bin/mailman/listinfo/daily

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Tageszusammenfassung - 27.02.2024
by Daily end-of-shift report 27 Feb '24

27 Feb '24

===================== = End-of-Day report = ===================== Timeframe: Montag 26-02-2024 18:00 − Dienstag 27-02-2024 18:00 Handler: Thomas Pribitzer Co-Handler: Michael Schlagenhaufer ===================== = News = ===================== ∗∗∗ Open-Source Xeno RAT Trojan Emerges as a Potent Threat on GitHub ∗∗∗ --------------------------------------------- An "intricately designed" remote access trojan (RAT) called Xeno RAT has been made available on GitHub, making it available to other actors at no extra cost. --------------------------------------------- https://thehackernews.com/2024/02/open-source-xeno-rat-trojan-emerges-as.ht… ∗∗∗ Achtung Betrug: Kriminelle locken mit gratis Spar-Geschenkkarten und Klimatickets ∗∗∗ --------------------------------------------- Aktuell kursieren gefälschte Gewinnspiele für kostenlose Spar-Geschenkkarten und Klimatickets. Die Angebote werden per E-Mail, in Sozialen Netzwerken oder per Direktnachricht auf Ihr Handy verbreitet. Die verlockenden Angebote dienen dazu, Ihnen persönliche Daten und Geld zu stehlen! --------------------------------------------- https://www.watchlist-internet.at/news/achtung-betrug-kriminelle-locken-mit… ∗∗∗ Booking.com refund request? It might be an Agent Tesla malware attack ∗∗∗ --------------------------------------------- Always be wary of opening unsolicited attachments - they might harbour malware. --------------------------------------------- https://grahamcluley.com/booking-com-refund-request-it-might-be-an-agent-te… ∗∗∗ Phishing Malware That Sends Stolen Information Using Telegram API ∗∗∗ --------------------------------------------- Recently, several phishing scripts using Telegram are being distributed indiscriminately through keywords such as remittance and receipts. --------------------------------------------- https://asec.ahnlab.com/en/62177/ ∗∗∗ Threat Actor Groups, Including Black Basta, are Exploiting Recent ScreenConnect Vulnerabilities ∗∗∗ --------------------------------------------- This blog entry gives a detailed analysis of these recent ScreenConnect vulnerabilities. We also discuss our discovery of threat actor groups, including Black Basta and Bl00dy Ransomware gangs, that are actively exploiting CVE-2024-1708 and CVE-2024-1709 based on our telemetry. --------------------------------------------- https://www.trendmicro.com/en_us/research/24/b/threat-actor-groups-includin… ∗∗∗ Hunting PrivateLoader: The malware behind InstallsKey PPI service ∗∗∗ --------------------------------------------- Read the latest Bitsight research on PrivateLoader including important updates recently, including a new string encryption algorithm, a new alternative communication protocol and more. --------------------------------------------- https://www.bitsight.com/blog/hunting-privateloader-malware-behind-installs… ∗∗∗ Februar-Sicherheitsupdates für Windows 11 können fehlschlagen ∗∗∗ --------------------------------------------- Microsoft arbeitet an der Lösung eines Problems, das die Installation der Februar-Sicherheitsupdates in Windows 11 verhindert. --------------------------------------------- https://heise.de/-9639866 ===================== = Vulnerabilities = ===================== ∗∗∗ WordPress LiteSpeed Plugin Vulnerability Puts 5 Million Sites at Risk ∗∗∗ --------------------------------------------- A security vulnerability has been disclosed in the LiteSpeed Cache plugin for WordPress that could enable unauthenticated users to escalate their privileges. --------------------------------------------- https://thehackernews.com/2024/02/wordpress-litespeed-plugin.html ∗∗∗ Security updates for Tuesday ∗∗∗ --------------------------------------------- Security updates have been issued by Debian (engrampa and libgit2), Fedora (libxls, perl-Spreadsheet-ParseXLSX, and wpa_supplicant), Gentoo (PyYAML), Mageia (packages and thunderbird), Red Hat (firefox, kernel, linux-firmware, thunderbird, and unbound), Slackware (openjpeg), SUSE (golang-github-prometheus-prometheus, installation-images, kernel, python-azure-core, python-azure-storage-blob, salt and python-pyzmq, SUSE Manager 4.2.11, SUSE Manager 4.3, SUSE Manager Server 4.2, and wayland), [...] --------------------------------------------- https://lwn.net/Articles/963805/ ∗∗∗ IBM Security Bulletins ∗∗∗ --------------------------------------------- https://www.ibm.com/support/pages/bulletin/ ∗∗∗ XSA-451 ∗∗∗ --------------------------------------------- https://xenbits.xen.org/xsa/advisory-451.html ∗∗∗ Zyxel Patches Remote Code Execution Bug in Firewall Products ∗∗∗ --------------------------------------------- https://www.securityweek.com/zyxel-patches-remote-code-execution-bug-in-fir… ∗∗∗ Festo: Multiple vulnerabilities affect MES PC shipped with Windows 10 ∗∗∗ --------------------------------------------- https://cert.vde.com/de/advisories/VDE-2023-065/ ∗∗∗ Nagios XI: Schwachstellen CVE-2024-24401 und CVE-2024-24402; PoC öffentlich ∗∗∗ --------------------------------------------- https://www.borncity.com/blog/2024/02/27/nagios-xi-schwachstellen-cve-2024-… ∗∗∗ Mitsubishi Electric Multiple Factory Automation Products ∗∗∗ --------------------------------------------- https://www.cisa.gov/news-events/ics-advisories/icsa-24-058-01 ∗∗∗ Santesoft Sante DICOM Viewer Pro ∗∗∗ --------------------------------------------- https://www.cisa.gov/news-events/ics-medical-advisories/icsma-24-058-01 ∗∗∗ VMSA-2024-0005 ∗∗∗ --------------------------------------------- https://www.vmware.com/security/advisories/VMSA-2024-0005.html -- CERT.at Daily mailing list Listinfo: https://lists.cert.at/cgi-bin/mailman/listinfo/daily

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Tageszusammenfassung - 26.02.2024
by Daily end-of-shift report 26 Feb '24

26 Feb '24

===================== = End-of-Day report = ===================== Timeframe: Freitag 23-02-2024 18:00 − Montag 26-02-2024 18:00 Handler: Thomas Pribitzer Co-Handler: Michael Schlagenhaufer ===================== = News = ===================== ∗∗∗ Hijacked subdomains of major brands used in massive spam campaign ∗∗∗ --------------------------------------------- A massive ad fraud campaign named "SubdoMailing" is using over 8,000 legitimate internet domains and 13,000 subdomains to send up to five million emails per day to generate revenue through scams and malvertising. [..] As these domains belong to trusted companies, they gain the benefit of being able to bypass spam filters and, in some cases, take advantage of configured SPF and DKIM email policies that tell secure email gateways that the emails are legitimate and not spam. --------------------------------------------- https://www.bleepingcomputer.com/news/security/hijacked-subdomains-of-major… ∗∗∗ New IDAT Loader Attacks Using Steganography to Deploy Remcos RAT ∗∗∗ --------------------------------------------- Ukrainian entities based in Finland have been targeted as part of a malicious campaign distributing a commercial remote access trojan known as Remcos RAT using a malware loader called IDAT Loader. --------------------------------------------- https://thehackernews.com/2024/02/new-idat-loader-attacks-using.html ∗∗∗ Actively exploited open redirect in Google Web Light ∗∗∗ --------------------------------------------- An open redirect vulnerability exists in the remains of Google Web Light service, which is being actively exploited in multiple phishing campaigns. Google decided not to fix it, so it might be advisable to block access to the Web Light domain in corporate environments. --------------------------------------------- https://untrustednetwork.net/en/2024/02/26/google-open-redirect/ ∗∗∗ Webinar: Wie schütze ich mich vor Identitätsdiebstahl? ∗∗∗ --------------------------------------------- n diesem Webinar schauen wir uns aktuelle Betrugsmaschen an und besprechen Tools, mit denen man sicherer im Internet unterwegs ist. --------------------------------------------- https://www.watchlist-internet.at/news/webinar-wie-schuetze-ich-mich-vor-id… ∗∗∗ Mattermost: Support for Extended Support Release 8.1 is ending soon ∗∗∗ --------------------------------------------- As of May 15, 2024, Mattermost Extended Support Release (ESR) version 8.1 will no longer be supported. If any of your servers are not on ESR 9.5 or later, upgrading is recommended. --------------------------------------------- https://mattermost.com/blog/support-for-extended-support-release-8-1-is-end… ∗∗∗ SVR Cyber Actors Adapt Tactics for Initial Cloud Access ∗∗∗ --------------------------------------------- This advisory details recent tactics, techniques, and procedures (TTPs) of the group commonly known as APT29, also known as Midnight Blizzard, the Dukes, or Cozy Bear. --------------------------------------------- https://www.cisa.gov/news-events/cybersecurity-advisories/aa24-057a ∗∗∗ Analysis of Nood RAT Used in Attacks Against Linux (Gh0st RAT’s Variant) ∗∗∗ --------------------------------------------- AhnLab SEcurity intelligence Center (ASEC) recently discovered that Nood RAT is being used in malware attacks. Nood RAT is a variant of Gh0st RAT that works in Linux. Although the number of Gh0st RAT for Linux is fewer compared to Gh0st RAT for Windows, the cases of Gh0st RAT for Linux are continuously being collected. --------------------------------------------- https://asec.ahnlab.com/en/62144/ ∗∗∗ Ransomware Roundup – Abyss Locker ∗∗∗ --------------------------------------------- FortiGuard Labs highlights the Abyss Locker ransomware group that steals information from victims and encrypts files for financial gain. --------------------------------------------- https://www.fortinet.com/blog/threat-research/ransomware-roundup-abyss-lock… ∗∗∗ Ransomware: LockBit gibt Fehler zu, plant Angriffe auf staatliche Einrichtungen ∗∗∗ --------------------------------------------- Die Ransomware-Gruppe LockBit gesteht Fehler aus Faulheit ein, macht sich über das FBI lustig und will Angriffe auf staatliche Einrichtungen intensivieren. --------------------------------------------- https://heise.de/-9638063 ===================== = Vulnerabilities = ===================== ∗∗∗ Security updates for Monday ∗∗∗ --------------------------------------------- Security updates have been issued by Debian (gnutls28, iwd, libjwt, and thunderbird), Fedora (chromium, expat, mingw-expat, mingw-openexr, mingw-python3, mingw-qt5-qt3d, mingw-qt5-qtactiveqt, mingw-qt5-qtbase, mingw-qt5-qtcharts, mingw-qt5-qtdeclarative, mingw-qt5-qtgraphicaleffects, mingw-qt5-qtimageformats, mingw-qt5-qtlocation, mingw-qt5-qtmultimedia, mingw-qt5-qtquickcontrols, mingw-qt5-qtquickcontrols2, mingw-qt5-qtscript, mingw-qt5-qtsensors, mingw-qt5-qtserialport, mingw-qt5-qtsvg, mingw-qt5-qttools, mingw-qt5-qttranslations, mingw-qt5-qtwebchannel, mingw-qt5-qtwebsockets, mingw-qt5-qtwinextras, mingw-qt5-qtxmlpatterns, and thunderbird), Gentoo (btrbk, Glances, and GNU Aspell), Mageia (clamav and xen, qemu and libvirt), Oracle (firefox and postgresql), Red Hat (firefox, opensc, postgresql:10, postgresql:12, postgresql:13, postgresql:15, thunderbird, and unbound), SUSE (firefox, java-1_8_0-ibm, libxml2, and thunderbird), and Ubuntu (binutils, linux, linux-aws, linux-gcp, linux-hwe-6.5, linux-laptop, linux-oracle, linux-raspi, linux-starfive, linux, linux-azure, linux-azure-5.15, linux-azure-fde, linux-gcp, linux-gcp-5.15, linux-gkeop, linux-gkeop-5.15, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-intel-iotg, linux-intel-iotg-5.15, linux-kvm, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle, linux-oracle-5.15, linux-raspi, linux-azure, linux-oem-6.1, and roundcube). --------------------------------------------- https://lwn.net/Articles/963725/ ∗∗∗ Critical Flaw in Popular ‘Ultimate Member’ WordPress Plugin ∗∗∗ --------------------------------------------- The vulnerability carries a CVSS severity score of 9.8/10 and affects web sites running the Ultimate Member WordPress membership plugin. --------------------------------------------- https://www.securityweek.com/critical-flaw-in-popular-ultimate-member-wordp… ∗∗∗ IBM Security Bulletins ∗∗∗ --------------------------------------------- https://www.ibm.com/support/pages/bulletin/ ∗∗∗ Local Privilege Escalation via DLL Hijacking im Qognify VMS Client Viewer ∗∗∗ --------------------------------------------- https://sec-consult.com/de/vulnerability-lab/advisory/local-privilege-escal… ∗∗∗ F5: K000138695 : OpenSSL vulnerability CVE-2024-0727 ∗∗∗ --------------------------------------------- https://my.f5.com/manage/s/article/K000138695 ∗∗∗ F5: K000138682 : libssh vulnerability CVE-2023-2283 ∗∗∗ --------------------------------------------- https://my.f5.com/manage/s/article/K000138682 -- CERT.at Daily mailing list Listinfo: https://lists.cert.at/cgi-bin/mailman/listinfo/daily

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Tageszusammenfassung - 23.02.2024
by Daily end-of-shift report 23 Feb '24

23 Feb '24

===================== = End-of-Day report = ===================== Timeframe: Donnerstag 22-02-2024 18:00 − Freitag 23-02-2024 18:00 Handler: Thomas Pribitzer Co-Handler: Michael Schlagenhaufer ===================== = News = ===================== ∗∗∗ Web3 Crypto Malware: Angel Drainer – From Phishing Sites to Malicious Injections ∗∗∗ --------------------------------------------- In this post, we’ll describe how bad actors have started using crypto drainers to monetize traffic to compromised sites. Our analysis starts with a brief overview of the threat landscape and investigation of Wave 2 (the most massive infection campaign) before covering Angel Drainer scan statistics, predecessors, and most recent variants of website hacks that involve crypto drainers. --------------------------------------------- https://blog.sucuri.net/2024/02/web3-crypto-malware-angel-drainer.html ∗∗∗ Shortcuts-Lücke: Zero-Day-Exploit konnte Apples Systemsicherheit aushebeln ∗∗∗ --------------------------------------------- Apples TCC-Verfahren soll eigentlich verhindern, dass böswillige Apps ausgeführt werden. Mittels Shortcuts war das doch möglich. Die Lücke ist gestopft. --------------------------------------------- https://www.heise.de/-9636600 ∗∗∗ Intruders in the Library: Exploring DLL Hijacking ∗∗∗ --------------------------------------------- Dynamic-link library (DLL) hijacking remains a popular technique to run malware. We address its evolution using examples from the realm of cybercrime and more. --------------------------------------------- https://unit42.paloaltonetworks.com/dll-hijacking-techniques/ ∗∗∗ Everything you need to know about IP grabbers ∗∗∗ --------------------------------------------- You would never give your personal ID to random strangers, right? So why provide the ID of your computer? Unsuspecting users beware, IP grabbers do not ask for your permission. --------------------------------------------- https://www.welivesecurity.com/en/cybersecurity/everything-you-need-to-know… ∗∗∗ Weitere Informationen zu Angriffen gegen ConnectWise ScreenConnect ∗∗∗ --------------------------------------------- Sophos hat einen Überblick über Angriffe gegen ConnectWise ScreenConnect veröffentlicht. Demnach wurden bereits verschiedene Arten von Ransomware, verschiedene Information Stealer und auch unterschiedliche Remote-Access-Trojans (RATs) auf Basis der kürzlich von ConnectWise veröffentlichten Vulnerabilities in ScreenConnect deployt. Diese heterogene Bedrohungslage bedingt zur Abklärung einer bereits stattgefundenen Kompromittierung auch einen abstrahierten Blick auf etwaige eigene Installationen. Sophos beschreibt in den Kapiteln "Recommendations" und "Threat hunting information" Empfehlungen zur Vorgangsweise, selbst betriebene Instanzen auf Kompromittierungen zu untersuchen. Wir empfehlen weiterhin, etwaige eigene Installationen von ConnectWise ScreenConnect eine genaueren Untersuchung zuzuführen - auch wenn die vom Hersteller herausgegebenen Updates bereits eingespielt wurden. --------------------------------------------- https://cert.at/de/aktuelles/2024/2/weitere-informationen-zu-angriffen-gege… ∗∗∗ ProxyNotShell: Scan-Problematik der "false positives" bei Exchange (nmap, Greenbone) ∗∗∗ --------------------------------------------- Ende September 2022 scheuchte die als ProxyNotShell bekannt gewordene Schwachstelle in Microsoft Exchange Server Administratoren auf. Die Anfang August 2022 entdeckte Schwachstelle wurde als 0-day mit Exploits angegriffen und Microsoft brauchte mehrere Versuche, die Sicherheitslücke zu schließen. Inzwischen gibt es Scanner wie nmap oder Greenbone, um Exchange Server auf diese Schwachstelle zu prüfen. Allerdings liefern diese Scanner ggf. auch Fehlalarme. --------------------------------------------- https://www.borncity.com/blog/2024/02/23/proxynotshell-scan-problematik-der… ===================== = Vulnerabilities = ===================== ∗∗∗ Sicherheitsupdate: Root-Lücke bedroht Servermonitoringtool Nagios XI ∗∗∗ --------------------------------------------- Admins sollten das Dienste-Monitoring mit Nagios XI aus Sicherheitsgründen zeitnah auf den aktuellen Stand bringen. --------------------------------------------- https://www.heise.de/-9636505 ∗∗∗ Sicherheitslücken: GitLab gegen mögliche Attacken abgesichert ∗∗∗ --------------------------------------------- Updates schließen mehrere Schwachstellen in GitLab. Eine Lücke bleibt aber offensichtlich erstmal bestehen. --------------------------------------------- https://www.heise.de/-9636995 ∗∗∗ Security updates for Friday ∗∗∗ --------------------------------------------- Security updates have been issued by Debian (chromium, imagemagick, and iwd), Fedora (chromium, firefox, and pdns-recursor), Mageia (nodejs and yarnpkg), Red Hat (firefox, postgresql, and postgresql:15), and SUSE (bind, mozilla-nss, openssh, php-composer2, python-pycryptodome, python-uamqp, python310, and tiff). --------------------------------------------- https://lwn.net/Articles/963352/ ∗∗∗ IBM Security Bulletins ∗∗∗ --------------------------------------------- https://www.ibm.com/support/pages/bulletin/ ∗∗∗ Sonicwall: SMA100 MFA Improper Access Control Vulnerability ∗∗∗ --------------------------------------------- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0001 ∗∗∗ F5: K000138693 : Linux kernel vulnerabilities CVE-2023-4206, CVE-2023-4207, and CVE-2023-4208 ∗∗∗ --------------------------------------------- https://my.f5.com/manage/s/article/K000138693 -- CERT.at Daily mailing list Listinfo: https://lists.cert.at/cgi-bin/mailman/listinfo/daily

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Tageszusammenfassung - 22.02.2024
by Daily end-of-shift report 22 Feb '24

22 Feb '24

===================== = End-of-Day report = ===================== Timeframe: Mittwoch 21-02-2024 18:00 − Donnerstag 22-02-2024 18:00 Handler: Thomas Pribitzer Co-Handler: n/a ===================== = News = ===================== ∗∗∗ New SSH-Snake malware steals SSH keys to spread across the network ∗∗∗ --------------------------------------------- A threat actor is using an open-source network mapping tool named SSH-Snake to look for private keys undetected and move laterally on the victim infrastructure. --------------------------------------------- https://www.bleepingcomputer.com/news/security/new-ssh-snake-malware-steals… ∗∗∗ Google Play Store: Banking-Trojaner nimmt europäische Nutzer ins Visier ∗∗∗ --------------------------------------------- Im Google Play Store tauchen Varianten des Anatsa-Banking-Trojaners auf. Sie kommen auf über 100.000 Installationen. --------------------------------------------- https://www.heise.de/news/Google-Play-Store-Banking-Trojaner-nimmt-europaei… ∗∗∗ Why ransomware gangs love using RMM tools—and how to stop them ∗∗∗ --------------------------------------------- More and more ransomware gangs are using RMM tools in their attacks. --------------------------------------------- https://www.malwarebytes.com/blog/business/2024/02/why-ransomware-gangs-lov… ∗∗∗ Unmasking Lorenz Ransomware: A Dive into Recent Tactics, Techniques and Procedures ∗∗∗ --------------------------------------------- In the ever-evolving landscape of cyber threats, ransomware remains a persistent menace, with groups like Lorenz actively exploiting vulnerabilities in small to medium businesses globally. --------------------------------------------- https://research.nccgroup.com/2024/02/22/unmasking-lorenz-ransomware-a-dive… ∗∗∗ Angriffe gegen ConnectWise ScreenConnect ∗∗∗ --------------------------------------------- Die Remote Desktop und Access Software ConnectWise ScreenConnect ist aktuell Ziel von Cyberangriffen. Der Hersteller der Software hatte kürzlich ein Security Advisory bezüglich Authentication Bypass und Path Traversal Vulnerabilities veröffentlicht und dieses inzwischen um Hinweise auf bereits laufende Angriff und Indikatoren für eine bereits stattgefundene Kompromittierung erweitert. --------------------------------------------- https://cert.at/de/aktuelles/2024/2/angriffe-gegen-connectwise-screenconnect ∗∗∗ TinyTurla-NG in-depth tooling and command and control analysis ∗∗∗ --------------------------------------------- Cisco Talos, in cooperation with CERT.NGO, has discovered new malicious components used by the Turla APT. New findings from Talos illustrate the inner workings of the command and control (C2) scripts deployed on the compromised WordPress servers utilized in the compromise we previously disclosed. --------------------------------------------- https://blog.talosintelligence.com/tinyturla-ng-tooling-and-c2/ ∗∗∗ LockBit Attempts to Stay Afloat With a New Version ∗∗∗ --------------------------------------------- This research is the result of our collaboration with the National Crime Agency in the United Kingdom, who took action against LockBit as part of Operation Cronos, an international effort resulting in the undermining of its operations. --------------------------------------------- https://www.trendmicro.com/en_us/research/24/b/lockbit-attempts-to-stay-afl… ∗∗∗ Decrypted: HomuWitch Ransomware ∗∗∗ --------------------------------------------- HomuWitch is a ransomware strain that initially emerged in July 2023. Unlike the majority of current ransomware strains, HomuWitch targets end-users - individuals - rather than institutions and companies. --------------------------------------------- https://decoded.avast.io/threatresearch/decrypted-homuwitch-ransomware/ ∗∗∗ “To live is to fight, to fight is to live! - IBM ODM Remote Code Execution ∗∗∗ --------------------------------------------- In today’s match-up, we’re looking at various versions(both old and new!) of IBM’s “Operational Decision Manager” (ODM). --------------------------------------------- https://labs.watchtowr.com/double-k-o-rce-in-ibm-operation-decision-manager/ ===================== = Vulnerabilities = ===================== ∗∗∗ Codeschmuggel-Lücke in diversen HP Laser-Druckern ∗∗∗ --------------------------------------------- HP warnt mit gleich zwei Sicherheitsmeldungen vor Lücken in diversen Laserjet-Druckern. Firmwareupdates sollen sie schließen. --------------------------------------------- https://www.heise.de/news/Codeschmuggel-Luecke-in-diversen-HP-Laser-Drucker… ∗∗∗ Security updates for Thursday ∗∗∗ --------------------------------------------- Security updates have been issued by CentOS (python-pillow), Debian (firefox-esr and imagemagick), Fedora (kernel, mbedtls, rust-asyncgit, rust-bat, rust-cargo-c, rust-eza, rust-git-absorb, rust-git-delta, rust-git2, rust-gitui, rust-libgit2-sys, rust-lsd, rust-pore, rust-pretty-git-prompt, rust-shadow-rs, rust-silver, rust-tokei, and rust-vergen), Gentoo (LibreOffice), Red Hat (kpatch-patch), Slackware (mozilla), SUSE (docker, python-pycryptodome, python3, and qemu), [...] --------------------------------------------- https://lwn.net/Articles/963205/ ∗∗∗ Progress Kemp LoadMaster (Load-Balancer) Schwachstelle CVE-2024-1212 ∗∗∗ --------------------------------------------- Zum 8. Februar 2024 gab es den Hinweis für Administratoren, die den Load-Balancer LoadMaster von Progress Kemp verwenden, dessen Firmware zu aktualisieren. --------------------------------------------- https://www.borncity.com/blog/2024/02/22/progress-kemp-loadmaster-load-bala… ∗∗∗ 2024-02-22: Cyber Security Advisory - B&R Automation Studio & Technology Guarding products use insufficient communication encryption ∗∗∗ --------------------------------------------- https://www.br-automation.com/fileadmin/SA23P019_Automation_Studio_Upgrade_… ∗∗∗ IBM Security Bulletins ∗∗∗ --------------------------------------------- https://www.ibm.com/support/pages/bulletin/ ∗∗∗ WAGO: Multiple products affected by Terrapin ∗∗∗ --------------------------------------------- https://cert.vde.com/de/advisories/VDE-2024-014/ ∗∗∗ [R1] Tenable Identity Exposure Secure Relay Version 3.59.4 Fixes Multiple Vulnerabilities ∗∗∗ --------------------------------------------- https://www.tenable.com/security/tns-2024-03 ∗∗∗ [R1] Tenable Identity Exposure Version 3.59.4 Fixes Multiple Vulnerabilities ∗∗∗ --------------------------------------------- https://www.tenable.com/security/tns-2024-04 ∗∗∗ Delta Electronics CNCSoft-B DOPSoft ∗∗∗ --------------------------------------------- https://www.cisa.gov/news-events/ics-advisories/icsa-24-053-01 -- CERT.at Daily mailing list Listinfo: https://lists.cert.at/cgi-bin/mailman/listinfo/daily

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Tageszusammenfassung - 21.02.2024
by Daily end-of-shift report 21 Feb '24

21 Feb '24

===================== = End-of-Day report = ===================== Timeframe: Dienstag 20-02-2024 18:00 − Mittwoch 21-02-2024 18:00 Handler: Thomas Pribitzer Co-Handler: Michael Schlagenhaufer ===================== = News = ===================== ∗∗∗ Open Source in Enterprise Environments - Where Are We Now and What Is Our Way Forward? ∗∗∗ --------------------------------------------- We have been used to hearing that free and open source software and enterprise environments in Big Business are fundamentally opposed and do not mix well. Is that actually the case, or should we rather explore how business and free software can both benefit going forward? --------------------------------------------- https://bsdly.blogspot.com/2022/09/open-source-in-enterprise-environments.h… ∗∗∗ VoltSchemer attacks use wireless chargers to inject voice commands, fry phones ∗∗∗ --------------------------------------------- A team of academic researchers show that a new set of attacks called VoltSchemer can inject voice commands to manipulate a smartphones voice assistant through the magnetic field emitted by an off-the-shelf wireless charger. --------------------------------------------- https://www.bleepingcomputer.com/news/security/voltschemer-attacks-use-wire… ∗∗∗ Security: Forscher erzeugen Fingerabdrücke aus Wischgeräuschen ∗∗∗ --------------------------------------------- Die Methode basiert auf einer Reihe komplexer Algorithmen, mit denen sich schließlich ein Master-Fingerabdruck erzeugen lässt. --------------------------------------------- https://www.golem.de/news/security-forscher-erzeugen-fingerabdruecke-aus-wi… ∗∗∗ Phishing pages hosted on archive.org, (Wed, Feb 21st) ∗∗∗ --------------------------------------------- The Internet Archive is a well-known and much-admired institution, devoted to creating a “digital library of Internet sites and other cultural artifacts in digital form”[1]. [...] Unfortunately, since it allows for uploading of files by users, it is also used by threat actors to host malicious content from time to time[2,3]. --------------------------------------------- https://isc.sans.edu/diary/rss/30676 ∗∗∗ Breakdown of Tycoon Phishing-as-a-Service System ∗∗∗ --------------------------------------------- Just weeks after Trustwave SpiderLabs reported on the Greatness phishing-as-a-service (PaaS) framework, SpiderLabs’ Email Security team is tracking another PaaS called Tycoon Group. --------------------------------------------- https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/breakdown-o… ∗∗∗ re: Zyxel VPN Series Pre-auth Remote Command Execution ∗∗∗ --------------------------------------------- An unauthenticated command injection exploit affecting Zyxel firewalls was published in late January without an associated CVE. The vulnerability turns out to be CVE-2023-33012. The associated disclosure did not mention any caveats to exploitation, but it turns out only an uncommon configuration is affected. --------------------------------------------- https://vulncheck.com/blog/zyxel-cve-2023-33012 ∗∗∗ Vibrator virus steals your personal information ∗∗∗ --------------------------------------------- One of our customers found their vibrator was buzzing with a hint of malware. --------------------------------------------- https://www.malwarebytes.com/blog/news/2024/02/vibrator-virus-steals-your-p… ∗∗∗ Redis Servers Targeted With New ‘Migo’ Malware ∗∗∗ --------------------------------------------- Attackers weaken Redis instances to deploy the new Migo malware and install a rootkit and cryptominers. --------------------------------------------- https://www.securityweek.com/redis-servers-targeted-with-new-migo-malware/ ∗∗∗ Fake-SMS zum Ablauf der Finanz-Online ID im Umlauf! ∗∗∗ --------------------------------------------- Kriminelle versenden aktuell massenhaft SMS im Namen des BMF zum angeblichen Ablauf der FinanzOnline ID, beziehungsweise ID Austria. Links in den Smishing-Nachrichten führen auf gefälschte Finanz-Online-Websites, auf denen persönliche Daten abgegriffen werden. Diese Daten können anschließend für personalisierte Folgebetrugsmaschen eingesetzt werden. Ignorieren Sie diese SMS-Nachrichten! --------------------------------------------- https://www.watchlist-internet.at/news/fake-sms-zum-ablauf-der-finanz-onlin… ∗∗∗ Detecting Malicious Actors By Observing Commands in Shell History ∗∗∗ --------------------------------------------- Among the myriad techniques and tools at the disposal of cybersecurity experts, one subtle yet powerful method often goes unnoticed: the analysis of shell history to detect malicious actors. --------------------------------------------- https://orca.security/resources/blog/understand-shell-commands-detect-malic… ∗∗∗ Practical Vulnerability Archaeology Starring Ivantis CVE-2021-44529 ∗∗∗ --------------------------------------------- In 2021, Ivanti patched a vulnerability that they called “code injection”. Rumors say it was a backdoor in an open source project. Let’s find out what actually happened! --------------------------------------------- https://www.greynoise.io/blog/practical-vulnerability-archaeology-starring-… ∗∗∗ CISA, EPA, and FBI Release Top Cyber Actions for Securing Water Systems ∗∗∗ --------------------------------------------- Today, CISA, the Environmental Protection Agency (EPA), and the Federal Bureau of Investigation (FBI) released the joint fact sheet Top Cyber Actions for Securing Water Systems. This fact sheet outlines the following practical actions Water and Wastewater Systems (WWS) Sector entities can take to better protect water systems from malicious cyber activity and provides actionable guidance [...] --------------------------------------------- https://www.cisa.gov/news-events/alerts/2024/02/21/cisa-epa-and-fbi-release… ∗∗∗ Lucifer DDoS botnet Malware is Targeting Apache Big-Data Stack ∗∗∗ --------------------------------------------- Aqua Nautilus has unveiled a new campaign targeting Apache big-data stack, specifically Apache Hadoop and Apache Druid. Upon investigation, it was discovered that the attacker exploits existing misconfigurations and vulnerabilities within our Apache cloud honeypots to execute the attacks. --------------------------------------------- https://blog.aquasec.com/lucifer-ddos-botnet-malware-is-targeting-apache-bi… ===================== = Vulnerabilities = ===================== ∗∗∗ Cisco Unified Intelligence Center Insufficient Access Control Vulnerability ∗∗∗ --------------------------------------------- A vulnerability in the Live Data server of Cisco Unified Intelligence Center could allow an unauthenticated, local attacker to read and modify data in a repository that belongs to an internal service on an affected device. This vulnerability is due to insufficient access control implementations on cluster configuration CLI requests. An attacker could exploit this vulnerability by sending a cluster configuration CLI request to specific directories on an affected device. --------------------------------------------- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdviso… ∗∗∗ Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Information Disclosure Vulnerability ∗∗∗ --------------------------------------------- In February 2024, the Cisco Product Security Incident Response Team (PSIRT) became aware of additional attempted exploitation of this vulnerability in the wild. Cisco continues to strongly recommend that customers upgrade to a fixed software release to remediate this vulnerability. --------------------------------------------- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdviso… ∗∗∗ WS_FTP Server Service Pack (February 2024) ∗∗∗ --------------------------------------------- This article contains the details of the specific updates within the WS_FTP Server February 2024 Service Pack. The Service Pack contains a fix for the newly disclosed CVE described below. Progress highly recommends you apply this Service Pack for product updates and security improvements. For Service Pack content, please review the Service Pack Release Notes and this knowledgebase article carefully. --------------------------------------------- https://community.progress.com/s/article/WS-FTP-Server-Service-Pack-Februar… ∗∗∗ Broadcom schließt Sicherheitslücken in VMware Aria Operations und EAP-Plug-in ∗∗∗ --------------------------------------------- Broadcom verteilt Updates für VMware Aria Operations und das EAP Browser Plug-in. Sie bessern teils kritische Sicherheitslücken aus. --------------------------------------------- https://www.heise.de/-9634714.html ∗∗∗ Firefox und Thunderbird: Neue Versionen liefern Sicherheitsfixes ∗∗∗ --------------------------------------------- Neue Versionen von Firefox, Firefox ESR und Thunderbird stehen bereit. Sie dichten im Kern Sicherheitslücken ab. --------------------------------------------- https://www.heise.de/-9634418.html ∗∗∗ VMSA-2024-0003 ∗∗∗ --------------------------------------------- Addressing Arbitrary Authentication Relay and Session Hijack Vulnerabilities in Deprecated VMware Enhanced Authentication Plug-in (EAP) (CVE-2024-22245, CVE-2024-22250) --------------------------------------------- https://www.vmware.com/security/advisories/VMSA-2024-0003.html ∗∗∗ VMSA-2024-0004 ∗∗∗ --------------------------------------------- VMware Aria Operations updates address local privilege escalation vulnerability. (CVE-2024-22235) --------------------------------------------- https://www.vmware.com/security/advisories/VMSA-2024-0004.html ∗∗∗ Security updates for Wednesday ∗∗∗ --------------------------------------------- Security updates have been issued by CentOS (linux-firmware and python-reportlab), Debian (unbound), Fedora (freeglut and syncthing), Red Hat (edk2, go-toolset:rhel8, java-1.8.0-ibm, kernel, kernel-rt, mysql:8.0, oniguruma, and python-pillow), Slackware (libuv and mozilla), SUSE (abseil-cpp, grpc, opencensus-proto, protobuf, python- abseil, python-grpcio, re2, bind, dpdk, firefox, hdf5, libssh, libssh2_org, libxml2, mozilla-nss, openssl-1_1, openvswitch, postgresql12, postgresql13, postgresql14, postgresql15, postgresql16, python-aiohttp, python-time-machine, python-pycryptodomex, runc, and webkit2gtk3), and Ubuntu (kernel, libspf2, linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle, and linux, linux-aws, linux-kvm, linux-lts-xenial). --------------------------------------------- https://lwn.net/Articles/963035/ ∗∗∗ Chrome 122, Firefox 123 Patch High-Severity Vulnerabilities ∗∗∗ --------------------------------------------- Google and Mozilla resolve high-severity memory safety vulnerabilities with the latest Chrome and Firefox updates. --------------------------------------------- https://www.securityweek.com/chrome-122-firefox-123-patch-high-severity-vul… ∗∗∗ IBM Security Bulletins ∗∗∗ --------------------------------------------- https://www.ibm.com/support/pages/bulletin/ ∗∗∗ K000138649 : GnuTLS vulnerability CVE-2023-5981 ∗∗∗ --------------------------------------------- https://my.f5.com/manage/s/article/K000138649 ∗∗∗ K000138650 : cURL vulnerability CVE-2023-46218 ∗∗∗ --------------------------------------------- https://my.f5.com/manage/s/article/K000138650 -- CERT.at Daily mailing list Listinfo: https://lists.cert.at/cgi-bin/mailman/listinfo/daily

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