cve/2021/CVE-2021-38085.md

CVE-2021-38085

Description

The Canon TR150 print driver through 3.71.2.10 is vulnerable to a privilege escalation issue. During the add printer process, a local attacker can overwrite CNMurGE.dll and, if timed properly, the overwritten DLL will be loaded into a SYSTEM process resulting in escalation of privileges. This occurs because the driver drops a world-writable DLL into a CanonBJ %PROGRAMDATA% location that gets loaded by printisolationhost (a system process).

POC

Reference

• http://packetstormsecurity.com/files/163795/Canon-TR150-Driver-3.71.2.10-Privilege-Escalation.html
• https://www.youtube.com/watch?v=vdesswZYz-8

Github

• https://github.com/ARPSyndicate/cvemon
• https://github.com/geeksniper/windows-privilege-escalation
• https://github.com/jacob-baines/concealed_position
• https://github.com/n0-traces/cve_monitor
• https://github.com/orgTestCodacy11KRepos110MB/repo-8984-concealed_position