Vulnerability identifier: #VU59517

Vulnerability risk: Low

CVSSv3.1: 6.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:H/RL:O/RC:C]

CVE-ID: CVE-2022-21877

CWE-ID: CWE-125

Exploitation vector: Local

Exploit availability: Yes

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

Vendor: Microsoft

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the Storage Spaces Controller (spaceport.sys drive). A local user can run a specially crafted program to trigger an out-of-bounds read error and read contents of memory with SYSTEM privileges..

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows: 10 - 10 S, 11 21H2

Windows Server: 2019 - 2022

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21877
http://www.zerodayinitiative.com/advisories/ZDI-22-048/

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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.