CVE Vulnerability

CVE-2021-38085

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).

7.2 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

7.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://defcon.org/html/defcon-29/dc-29-speakers.html#baines Third Party Advisory
http://packetstormsecurity.com/files/163795/Canon-TR150-Driver-3.71.2.10-Privilege-Escalation.html Exploit Third Party Advisory
https://raw.githubusercontent.com/jacob-baines/vuln_disclosure/main/vuln_2021_03.txt Third Party Advisory
https://www.youtube.com/watch?v=vdesswZYz-8 Exploit Third Party Advisory
Configurations

Configuration 1
Information

Published : 2021-08-11 06:15

Updated : 2022-05-03 04:04

NVD link : CVE-2021-38085

Mitre link : CVE-2021-38085

Products Affected
No products.
CWE
CWE-732