Privilege escalation in Microsoft Windows Workstation Service

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU68140

Risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-38034

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions in the Windows Workstation Service. A remote user can execute RPC functions that are restricted to local clients only.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows Server: 2003 - 2022 20H2

Windows: XP - 2000

CPE2.3

• cpe:2.3:o:microsoft:windows_server:*:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2008_R2:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2008_R2_SP1:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2008_SP2:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2012_Gold:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2012_R2:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2016:10.0.14393.10:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2019:10.0.17763.1:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows:XP:*:*:*:*:*:*:*

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-38034

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.