Information disclosure in Microsoft Windows VMSwitch

1) Information disclosure

EUVDB-ID: #VU50478

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-24076

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

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

The vulnerability exists due to excessive data output by the application in Microsoft Windows VMSwitch. A local user can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 8.1 - 10 2004 10.0.19041.264

Windows Server: 2012 - 2019 2004

CPE2.3

• cpe:2.3:o:microsoft:windows:10 1803:10.0.17134.48:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows:10 1809:10.0.17763.1:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows:10 1909:10.0.18363.476:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows:10 1607:10.0.14393.10:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows:8.1:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows:10 20H2:10.0.19042.572:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows:10 2004:10.0.19041.264:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2019:10.0.17763.1:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2019 1909:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2016:10.0.14393.10:*:*:*:*:*:*

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24076

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.