Privilege escalation in Microsoft Windows Group Policy



Published: 2022-09-13 | Updated: 2022-09-19
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-37955
CWE-ID CWE-59
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Windows Server
Operating systems & Components / Operating system

Windows
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Link following

EUVDB-ID: #VU67252

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-37955

CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a symlink following issue within the Group Policy Preference Client module. A local user can create a specially crafted symbolic link to a critical file on the system and overwrite it with SYSTEM privileges.

Successful exploitation of this vulnerability may result in privilege escalation.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows Server: 2003 - 2022 20H2

Windows: 7 - XP


CPE2.3 External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-37955
http://www.zerodayinitiative.com/advisories/ZDI-22-1285/

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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