CVE-2021-38085
Canon TR150 Driver 3.71.2.10 Privilege Escalation
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
2Exploited in Wild
-Decision
Descriptions
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).
El controlador de impresión Canon TR150 versiones hasta 3.71.2.10, es vulnerable a un problema de escalada de privilegios. Durante el proceso add printer, un atacante local puede sobrescribir la biblioteca CNMurGE.dll y, si se sincroniza apropiadamente, la DLL sobrescrita será cargada en un proceso SYSTEM, resultando en una escalada de privilegios. Esto ocurre porque el controlador deja caer una DLL escribible en el mundo en una ubicación %PROGRAMDATA% de CanonBJ que es cargada por printisolationhost (un proceso del sistema)
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-08-03 CVE Reserved
- 2021-08-11 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-04 CVE Updated
- 2024-08-04 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-732: Incorrect Permission Assignment for Critical Resource
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| https://defcon.org/html/defcon-29/dc-29-speakers.html#baines | Third Party Advisory | |
| https://raw.githubusercontent.com/jacob-baines/vuln_disclosure/main/vuln_2021_03.txt | Third Party Advisory | |
| - |
| URL | Date | SRC |
|---|---|---|
| http://packetstormsecurity.com/files/163795/Canon-TR150-Driver-3.71.2.10-Privilege-Escalation.html | 2024-08-04 | |
| https://www.youtube.com/watch?v=vdesswZYz-8 | 2024-08-04 |
| URL | Date | SRC |
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| URL | Date | SRC |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Canon Search vendor "Canon" | Pixma Tr150 Firmware Search vendor "Canon" for product "Pixma Tr150 Firmware" | <= 3.71.2.10 Search vendor "Canon" for product "Pixma Tr150 Firmware" and version " <= 3.71.2.10" | - |
Affected
| in | Canon Search vendor "Canon" | Pixma Tr150 Search vendor "Canon" for product "Pixma Tr150" | - | - |
Safe
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