#web

Gentoo Linux Security Advisory 202402-26 - Multiple vulnerabilities have been discovered in Mozilla Firefox, the worst of which could result in arbitrary code execution. Versions greater than or equal to 115.7.0:esr are affected.

Back in 2022, the researcher released a proof of concept to bypass the Backdoor:JS/Relvelshe.A detection in Windows Defender but it no longer works as it was mitigated. However, adding a simple javascript try catch error statement and eval'ing the hex string, it executes as of the time of this post.

This is additional research regarding a mitigation bypass in Windows Defender. Back in 2022, the researcher disclosed how it could be easily bypassed by passing an extra path traversal when referencing mshtml but that issue has since been mitigated. However, the researcher discovered using multiple commas can also be used to achieve the bypass. This issue was addressed. The fix was short lived as the researcher found yet another third trivial bypass. Previously, the researcher disclosed 3 bypasses using rundll32 javascript, but this example leverages the VBSCRIPT and ActiveX engines.

Gentoo Linux Security Advisory 202402-25 - Multiple vulnerabilities have been discovered in Mozilla Thunderbird, the worst of which could lead to remote code execution. Versions greater than or equal to 115.7.0 are affected.

Gentoo Linux Security Advisory 202402-21 - Multiple vulnerabilities have been discovered in QtNetwork, the worst of which could lead to execution of arbitrary code. Versions greater than or equal to 6.6.1-r2 are affected.

InstantCMS version 2.16.1 suffers from a persistent cross site scripting vulnerability that appears to require administrative access.

Gentoo Linux Security Advisory 202402-24 - Multiple vulnerabilities have been discovered in Seamonkey, the worst of which can lead to remote code execution. Versions greater than or equal to 2.53.10.2 are affected.

Gentoo Linux Security Advisory 202402-23 - Multiple vulnerabilities have been discovered in Chromium and its derivatives, the worst of which can lead to remote code execution. Versions greater than or equal to 121.0.6167.139 are affected.

Gentoo Linux Security Advisory 202402-22 - Multiple vulnerabilities have been discovered in intel-microcode, the worst of which can lead to privilege escalation. Versions greater than or equal to 20230214_p20230212 are affected.

Gentoo Linux Security Advisory 202402-20 - A vulnerability has been discovered in Thunar which may lead to arbitrary code execution Versions greater than or equal to 4.17.3 are affected.