CVE-2024-29056: Windows Authentication Elevation of Privilege Vulnerability

Overview

Severity
Medium (CVSS 4.3)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C
Category
Elevation of Privilege
Exploit Status
Not Exploited
Exploitation Likelihood
More Likely
Patch Tuesday
2024-Apr
Released
2024-04-09
EPSS Score
1.41% (percentile: 80.5%)

FAQ

According to the CVSS metrics, successful exploitation of this vulnerability could lead to some loss of confidentiality (C:L) but have no effect on integrity (I:N) or on availability (A:N). What does that mean for this vulnerability? An attacker who successfully exploited the vulnerability could view some sensitive information (Confidentiality) but not all resources within the impacted component may be divulged to the attacker. The attacker cannot make changes to disclosed information (Integrity) or limit access to the resource (Availability). Where can I find more information about what steps I need to take to be fully protected from this vulnerability? The updates released on or after April 9, 2024 will NOT fully address the security issues in this vulnerability. For more information about how to manage PAC validation changes related to this CVE and the steps you need to take to be fully protected, see How to manage PAC Validation changes related to CVE-2024-26248 and CVE-2024-29056. What privileges could be gained by an attacker who successfully exploited the vulnerability? A user from a cross-organization trust might obtain access that is granted to all users in an organization.

Affected Products (17)

Windows

  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows Server 2022
  • Windows Server 2022 (Server Core installation)
  • Windows Server 2022, 23H2 Edition (Server Core installation)
  • Windows Server 2016
  • Windows Server 2016 (Server Core installation)

ESU

  • Windows Server 2008 for 32-bit Systems Service Pack 2
  • Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
  • Windows Server 2008 for x64-based Systems Service Pack 2
  • Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
  • Windows Server 2012
  • Windows Server 2012 (Server Core installation)
  • Windows Server 2012 R2
  • Windows Server 2012 R2 (Server Core installation)

Security Updates (10)

Revision History

  • 2024-04-09: Information published.