[CERT-daily] Tageszusammenfassung - 15.04.2024

Mon Apr 15 18:30:42 CEST 2024

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= End-of-Day report =
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Timeframe:   Freitag 12-04-2024 18:00 − Montag 15-04-2024 18:00
Handler:     Thomas Pribitzer
Co-Handler:  Michael Schlagenhaufer

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=       News        =
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∗∗∗ Zero-Day Exploitation of Unauthenticated Remote Code Execution Vulnerability in GlobalProtect (CVE-2024-3400) ∗∗∗
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On April 10, 2024, Volexity identified zero-day exploitation of a vulnerability found within the GlobalProtect feature of Palo Alto Networks PAN-OS at one of its network security monitoring (NSM) customers. During its investigation, Volexity observed that UTA0218 attempted to install a custom Python backdoor, which Volexity calls UPSTYLE, on the firewall. The UPSTYLE backdoor allows the attacker to execute additional commands on the device via specially crafted network requests. Details on this backdoor are included further on in this report.
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https://www.volexity.com/blog/2024/04/12/zero-day-exploitation-of-unauthenticated-remote-code-execution-vulnerability-in-globalprotect-cve-2024-3400/


∗∗∗ Cisco Duo warns third-party data breach exposed SMS MFA logs ∗∗∗
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Cisco Duos security team warns that hackers stole some customers VoIP and SMS logs for multi-factor authentication (MFA) messages in a cyberattack on their telephony provider.
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https://www.bleepingcomputer.com/news/security/cisco-duo-warns-third-party-data-breach-exposed-sms-mfa-logs/


∗∗∗ Angriff via WebGPU: Sensible Nutzerdaten lassen sich per Javascript auslesen ∗∗∗
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Einem Forscherteam der TU Graz ist es gelungen, durch drei verschiedene Seitenkanalangriffe über die in modernen Webbrowsern integrierte Grafikschnittstelle WebGPU sicherheitsrelevante Nutzerdaten wie Tastatureingaben oder Verschlüsselungsschlüssel auszuspähen. Durch die Forschungsarbeit will das Team vor allem auf die Risiken aufmerksam machen, die mit der Implementierung von WebGPU einhergehen können.
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https://www.golem.de/news/angriff-via-webgpu-sensible-nutzerdaten-lassen-sich-per-javascript-auslesen-2404-184171.html


∗∗∗ Using the LockBit builder to generate targeted ransomware ∗∗∗
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Kaspersky researchers revisit the leaked LockBit 3.0 builder and share insights into a real-life incident involving a custom targeted ransomware variant created with this builder.
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https://securelist.com/lockbit-3-0-based-custom-targeted-ransomware/112375/


∗∗∗ Delinea Secret Server customers should apply latest patches ∗∗∗
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Customers of Delinea's Secret Server are being urged to upgrade their installations "immediately" after a researcher claimed a critical vulnerability could allow attackers to gain admin-level access. [..] Delinea sent us a statement post publication: "We confirm there was a vulnerability in Secret Server. Delinea Platform and Secret Server Cloud have been patched and are no longer vulnerable. We have provided a remediation guide for our on-premise customers to fix the vulnerability.
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https://go.theregister.com/feed/www.theregister.com/2024/04/15/delinea_secret_server_patch/


∗∗∗ Unpacking the Blackjack Groups Fuxnet Malware ∗∗∗
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Blackjack claims its initial compromise of Moscollector began in June 2023, and since then the group said it has worked slowly in an attempt to cripple the industrial sensors and monitoring infrastructure managed by the company. [..] Screenshots released by the attackers indicate that the impacted sensors are manufactured by a company named AO SBK, a Russian company that manufactures a variety of sensor types, ranging from gas measurement sensors to environmental monitoring equipment.
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https://claroty.com/team82/research/unpacking-the-blackjack-groups-fuxnet-malware


∗∗∗ Falsche Google-Anrufe zu Ihrem Google-Business-Eintrag ∗∗∗
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Vorsicht, wenn Anrufer:innen vorgeben, von Google zu sein. Vermehrt geben sich Kriminelle als Google aus und behaupten, dass die Testphase Ihres Google-Business-Profils abgelaufen und der Eintrag nun kostenpflichtig sei. Legen Sie gleich auf!
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https://www.watchlist-internet.at/news/falsche-google-anrufe-zu-ihrem-google-business-eintrag/


∗∗∗ “Totally Unexpected” Package Malware Using Modified Notepad++ Plug-in (WikiLoader) ∗∗∗
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AhnLab SEcurity intelligence Center (ASEC) has recently identified the distribution of a modified version of “mimeTools.dll”, a default Notepad++ plug-in. The malicious mimeTools.dll file in question was included in the package installation file of a certain version of the Notepad++ package and disguised as a legitimate package file.
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https://asec.ahnlab.com/en/64106/


∗∗∗ Lancom-Setup-Assistent leert Root-Passwort ∗∗∗
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Wer Lancom-Router mit dem Windows-Setup-Assistenten konfiguriert, läuft Gefahr, das Root-Passwort durch ein leeres zu ersetzen.
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https://heise.de/-9682694


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=  Vulnerabilities  =
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∗∗∗ Palo Alto Networks Releases Urgent Fixes for Exploited PAN-OS Vulnerability ∗∗∗
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Palo Alto Networks has released hotfixes to address a maximum-severity security flaw impacting PAN-OS software that has come under active exploitation in the wild.
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https://thehackernews.com/2024/04/palo-alto-networks-releases-urgent.html


∗∗∗ Sicherheitsupdates: Schwachstellen in PHP gefährden Websites ∗∗∗
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Die PHP-Entwickler haben mehrere Schwachstellen geschlossen. Eine Sicherheitslücke gilt als kritisch.
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https://heise.de/-9684558


∗∗∗ Telegram Desktop: Tippfehler im Quellcode mündet in RCE-Schwachstelle ∗∗∗
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Ein Tippfehler im Code der Windows-App von Telegram ermöglicht die Ausführung von Schadcode auf fremden Systemen. Es reicht ein Klick auf ein vermeintliches Video. [..] Der Tippfehler im Telegram-Quellcode bezieht sich aber nicht auf .exe, sondern auf die Dateiendung .pyzw, die ausführbaren Python-Zip-Archiven zugeordnet wird. Diese war im Code noch bis zum 11. April als .pywz hinterlegt, so dass die oben genannte Sicherheitswarnung bei einem Klick auf eine .pyzw-Datei gar nicht erst erschien. [..] Zwar hat Telegram den Fehler im Quellcode inzwischen behoben, ein entsprechendes Update für die Windows-App wurde bisher aber offenbar nicht verteilt.
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https://www.golem.de/news/telegram-desktop-tippfehler-im-quellcode-muendet-in-rce-schwachstelle-2404-184135.html


∗∗∗ Security updates for Monday ∗∗∗
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Security updates have been issued by AlmaLinux (bind, bind and dhcp, bind9.16, gnutls, httpd:2.4/mod_http2, squid:4, and unbound), Debian (kernel, trafficserver, and xorg-server), Fedora (chromium, kernel, libopenmpt, and rust-h2), Mageia (apache-mod_jk, golang, indent, openssl, perl-HTTP-Body, php, rear, ruby-rack, squid, varnish, and xfig), Oracle (bind, squid, unbound, and X.Org server), Red Hat (bind and dhcp and unbound), Slackware (less and php), SUSE (gnutls, python-Pillow, webkit2gtk3, xen, xorg-x11-server, and xwayland), and Ubuntu (yard).
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https://lwn.net/Articles/969873/


∗∗∗ IBM Security Bulletins ∗∗∗
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https://www.ibm.com/support/pages/bulletin/


∗∗∗ Xen: XSA-456 ∗∗∗
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https://xenbits.xenproject.org/people/gdunlap/xsa-draft/advisory-456.html

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