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CVE-2023-24932: Secure Boot Security Feature Bypass Vulnerability

What kind of security feature could be bypassed by successfully exploiting this vulnerability?

An attacker who successfully exploited this vulnerability could bypass Secure Boot.

Microsoft Security Response Center
#vulnerability#web#microsoft#Windows Secure Boot#Security Vulnerability

CVE-ID

Learn more at National Vulnerability Database (NVD)

• CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information

Description

Secure Boot Security Feature Bypass Vulnerability

References

Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.

  • MISC:Secure Boot Security Feature Bypass Vulnerability
  • URL:https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24932

Assigning CNA

Microsoft Corporation

Date Record Created

20230131

Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.

Phase (Legacy)

Assigned (20230131)

Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)

N/A

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CVE-2023-24932

Secure Boot Security Feature Bypass Vulnerability

Guidance related to Secure Boot Manager changes associated with CVE-2023-24932

Summary Summary Today, Microsoft is releasing CVE-2023-24932, and associated configuration guidance, to address a Secure Boot bypass vulnerability used by the BlackLotus bootkit to exploit CVE-2022-21894. Customers will need to closely follow the configuration guidance to fully protect against this vulnerability. This vulnerability allows an attacker to execute self-signed code at the Unified Extensible Firmware Interface (UEFI) level while Secure Boot is enabled.