A week in security (February 12 – February 18)

Last week on Malwarebytes Labs: GoldPickaxe Trojan steals your face! Microsoft Exchange vulnerability actively exploited Massive utility scam campaign spreads via online ads Facebook Marketplace users’ stolen data offered for sale How ransomware changed in 2023 Malwarebytes crushes malware all th...

[SECURITY] Fedora 38 Update: clamav-1.0.5-1.fc38

Clam AntiVirus is an anti-virus toolkit for UNIX. The main purpose of this software is the integration with mail servers attachment scanning. The package provides a flexible and scalable multi-threaded daemon, a command line scanner, and a tool for automatic updating via Internet. The programs ar...

Important: postfix

Issue Overview: Postfix through 3.8.4 allows SMTP smuggling unless configured with smtpddatarestrictions=rejectunauthpipelining and smtpddiscardehlokeywords=chunking or certain other options that exist in recent versions. Remote attackers can use a published exploitation technique to inject e-mai...

Amazon Linux AMI : exim (ALAS-2024-1908)

The version of exim installed on the remote host is prior to 4.92-1.40. It is, therefore, affected by a vulnerability as referenced in the ALAS-2024-1908 advisory. Exim through 4.97 allows SMTP smuggling in certain configurations. Remote attackers can use a published exploitation technique to...

Amazon Linux 2 : postfix (ALAS-2024-2420)

The version of postfix installed on the remote host is prior to 2.10.1-6. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2024-2420 advisory. Postfix through 3.8.4 allows SMTP smuggling unless configured with smtpddatarestrictions=rejectunauthpipelining and...

Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 LTS / 23.10 : Postfix vulnerability (USN-6591-1)

The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 LTS / 23.10 host has packages installed that are affected by a vulnerability as referenced in the USN-6591-1 advisory. Timo Longin discovered that Postfix incorrectly handled certain email line endings. A remote attacker could possibly u...

CVE-2023-51765

sendmail through 8.17.2 allows SMTP smuggling in certain configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because sendmail supports . but some other...

CVE-2023-51766

Exim before 4.97.1 allows SMTP smuggling in certain PIPELINING/CHUNKING configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because Exim supports . but...

CVE-2023-51766

Exim before 4.97.1 allows SMTP smuggling in certain PIPELINING/CHUNKING configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because Exim supports . but...

CVE-2023-51765

sendmail through 8.17.2 allows SMTP smuggling in certain configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because sendmail supports . but some other...

CVE-2023-51765

sendmail through 8.17.2 allows SMTP smuggling in certain configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because sendmail supports . but some other...

Advanced threat predictions for 2024

Advanced persistent threats APTs are the most dangerous threats, as they employ complex tools and techniques, and often are highly targeted and hard to detect. Amid the global crisis and escalating geopolitical confrontations, these sophisticated cyberattacks are even more dangerous, as there is...

Rocky Linux 8 : fetchmail (RLSA-2022:1964)

The remote Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2022:1964 advisory. - reportvbuild in report.c in Fetchmail before 6.4.20 sometimes omits initialization of the vsnprintf valist argument, which might allow mail servers to...

New Critical Security Flaws Expose Exim Mail Servers to Remote Attacks

Multiple security vulnerabilities have been disclosed in the Exim mail transfer agent that, if successfully exploited, could result in information disclosure and remote code execution. The list of flaws, which were reported anonymously way back in June 2022, is as follows - CVE-2023-42114 CVSS...

[SECURITY] Fedora 37 Update: clamav-0.103.10-1.fc37

Clam AntiVirus is an anti-virus toolkit for UNIX. The main purpose of this software is the integration with mail servers attachment scanning. The package provides a flexible and scalable multi-threaded daemon, a command line scanner, and a tool for automatic updating via Internet. The programs ar...

Fedora: Security Advisory for clamav (FEDORA-2023-bf72d8833e)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Debian: Security Advisory (DSA-887-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Parallax RAT Targeting Cryptocurrency Firms with Sophisticated Injection Techniques

Cryptocurrency companies are being targeted as part of a new campaign that delivers a remote access trojan called Parallax RAT. The malware "uses injection techniques to hide within legitimate processes, making it difficult to detect," Uptycs said in a new report. "Once it has been successfully...

[SECURITY] Fedora 36 Update: clamav-0.103.8-3.fc36

Clam AntiVirus is an anti-virus toolkit for UNIX. The main purpose of this software is the integration with mail servers attachment scanning. The package provides a flexible and scalable multi-threaded daemon, a command line scanner, and a tool for automatic updating via Internet. The programs ar...

[SECURITY] Fedora 37 Update: clamav-0.103.8-1.fc37

Clam AntiVirus is an anti-virus toolkit for UNIX. The main purpose of this software is the integration with mail servers attachment scanning. The package provides a flexible and scalable multi-threaded daemon, a command line scanner, and a tool for automatic updating via Internet. The programs ar...