Multiple vulnerabilities in Microsoft Windows Partition Management Driver

Published: 2022-08-10 | Updated: 2022-08-18

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-34703 CVE-2022-33670
CWE-ID	CWE-190 CWE-285
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	Windows Server Operating systems & Components / Operating system Windows Operating systems & Components / Operating system
Vendor	Microsoft

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Integer overflow

EUVDB-ID: #VU66334

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-34703

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

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

The vulnerability exists due to integer overflow within the partmgr.sys Windows partition management driver. A local user can trigger an integer overflow and execute arbitrary code with SYSTEM privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows Server: 2003 - 2022 20H2

Windows: 7 - XP

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-34703
http://www.zerodayinitiative.com/advisories/ZDI-22-1072/

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?

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

2) Improper Authorization

EUVDB-ID: #VU66336