Privilege escalation in Microsoft Windows CSRSS



Published: 2022-07-12
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-22047
CWE-ID CWE-119
Exploitation vector Local
Public exploit This vulnerability is being exploited in the wild.
Vulnerable software
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Windows
Operating systems & Components / Operating system

Windows Server
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU65161

Risk: High

CVSSv3.1:

CVE-ID: CVE-2022-22047

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error within the Microsoft Windows Client/Server Runtime Subsystem (CSRSS). A local user can run a specially crafted program to execute arbitrary code with SYSTEM privileges.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 8.1 - 11 21H2

Windows Server: 2008 - 2022


CPE2.3 External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-22047

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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