Vulnerability identifier: #VU68237

Vulnerability risk: High

CVSSv3.1: 7.5 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2022-38028

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Windows Server
Operating systems & Components / Operating system
Windows
Operating systems & Components / Operating system

Vendor: Microsoft

Description

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

The vulnerability exists due to application does not properly impose security restrictions in the Windows Print Spooler, which leads to security restrictions bypass and privilege escalation.

Note, the vulnerability is being exploited in the wild since at least June 2020 and possibly as early as April 2019.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows Server: 2003 - 2022 20H2

Windows: 11 22H2 10.0.22621.521, 10 21H2 10.0.19044.1288, 11 21H2 10.0.22000.194, 10 21H1 10.0.19043.985, 10 1507 10.0.10240.16405, 10 20H2 10.0.19042.572, 10 2004 10.0.19041.264, 10 1909 10.0.18363.476, 10 1903 10.0.18362.116, 10 1809 10.0.17763.1, 10 1803 10.0.17134.48, 10 1709 10.0.16299.19, 10 1703 10.0.15063.138, 10 1607 10.0.14393.10, 10 1511 10.0.10586.3, 7 - 7 SP1, 8.1 - 8.1 RT, 8 - 8 RT, 2000, XP, Vista

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-38028
http://www.microsoft.com/en-us/security/blog/2024/04/22/analyzing-forest-blizzards-custom-post-compromise-tool-for-exploiting-cve-2022-38028-to-obtain-credentials/

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.