CVE-2021-38085
The Canon TR150 print driver through 3.71.2.10 is vulnerable to a privilege escalation issue.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.98%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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).
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.98% probability · 60th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-732
- Affected
- canon/pixma tr150 firmware
- Source
- cve@mitre.org
References
- http://packetstormsecurity.com/files/163795/Canon-TR150-Driver-3.71.2.10-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
- https://defcon.org/html/defcon-29/dc-29-speakers.html#bainesThird Party Advisory
- https://raw.githubusercontent.com/jacob-baines/vuln_disclosure/main/vuln_2021_03.txtThird Party Advisory
- https://www.youtube.com/watch?v=vdesswZYz-8Exploit, Third Party Advisory
- http://packetstormsecurity.com/files/163795/Canon-TR150-Driver-3.71.2.10-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
- https://defcon.org/html/defcon-29/dc-29-speakers.html#bainesThird Party Advisory
- https://raw.githubusercontent.com/jacob-baines/vuln_disclosure/main/vuln_2021_03.txtThird Party Advisory
- https://www.youtube.com/watch?v=vdesswZYz-8Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.