CVE-2021-41337: Active Directory Security Feature Bypass Vulnerability

Overview

Severity

Medium (CVSS 4.9)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C

Category

Security Feature Bypass

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2021-Oct

Released

2021-10-12

Last Updated

2022-04-12

EPSS Score

0.36% (percentile: 58.6%)

FAQ

What kind of security feature could be bypassed by successfully exploiting this vulnerability? This vulnerability could allow an attacker to bypass Active Directory domain permissions for Key Admins groups.

Affected Products (8)

Windows

• Windows Server 2019
• Windows Server 2019 (Server Core installation)
• Windows Server 2022
• Windows Server 2022 (Server Core installation)
• Windows Server, version 2004 (Server Core installation)
• Windows Server, version 20H2 (Server Core Installation)
• Windows Server 2016
• Windows Server 2016 (Server Core installation)

Security Updates (4)

• 5006672
• 5006699
• 5006670
• 5006669

Acknowledgments

<a href ="https://twitter.com/jbgalet"> Jean-Baptiste Galet working with <a href ="https://www.ssi.gouv.fr"> ANSSI </a>

Revision History

• 2021-10-12: Information published.
• 2022-04-12: Added an acknowledgement. This is an informational change only.