CVE-2024-20669HighCVSS 6.7

Secure Boot Security Feature Bypass Vulnerability

Published
April 9, 2024
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2024-20669 →

📋 Description

According to the CVSS metric, privileges required is high (PR:H). What does that mean for this vulnerability? Successful exploitation of this vulnerability requires an attacker to compromise admin credentials on the device.

What kind of security feature could be bypassed by successfully exploiting this vulnerability? An attacker who successfully exploited this vulnerability could bypass Secure Boot.

Are there additional steps I need to take to be protected from this vulnerability? All customers should apply the April 9, 2024 Windows security updates. These security updates address this vulnerability by updating the Windows Boot Manager and other components, but the protections are not enabled by default. Additional steps are required at this time to mitigate this vulnerability. Please refer to KB5025885: How to manage the Windows Boot Manager revocations for Secure Boot changes associated with CVE-2023-24932. This article describes the protection against this Secure Boot security feature bypass, how to enable the protections, and guidance to update bootable media.

🎯 Affected products30

  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 Version 1607 for x64-based Systems
  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1809 for ARM64-based Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows 10 Version 21H2 for 32-bit Systems
  • Windows 10 Version 21H2 for ARM64-based Systems
  • Windows 10 Version 21H2 for x64-based Systems
  • Windows 10 Version 22H2 for 32-bit Systems
  • Windows 10 Version 22H2 for ARM64-based Systems
  • Windows 10 Version 22H2 for x64-based Systems
  • Windows 10 for 32-bit Systems
  • Windows 10 for x64-based Systems
  • Windows 11 Version 22H2 for ARM64-based Systems
  • Windows 11 Version 22H2 for x64-based Systems
  • Windows 11 Version 23H2 for ARM64-based Systems
  • Windows 11 Version 23H2 for x64-based Systems
  • Windows 11 version 21H2 for ARM64-based Systems
  • Windows 11 version 21H2 for x64-based Systems
  • Windows Server 2012
  • Windows Server 2012 (Server Core installation)
  • Windows Server 2012 R2
  • Windows Server 2012 R2 (Server Core installation)
  • Windows Server 2016
  • Windows Server 2016 (Server Core installation)
  • 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)

✅ Remediation

KB5036896 (Security Update) — fixed build 10.0.17763.5696 KB5036909 (Security Update) — fixed build 10.0.20348.2402 KB5036894 (Security Update) — fixed build 10.0.22000.2899 KB5036892 (Security Update) — fixed build 10.0.19044.4291 KB5036893 (Security Update) — fixed build 10.0.22621.3447 KB5036892 (Security Update) — fixed build 10.0.19045.4291 KB5036893 (Security Update) — fixed build 10.0.22631.3447 KB5036910 (Security Update) — fixed build 10.0.25398.830 KB5036925 (Security Update) — fixed build 10.0.10240.20596 KB5036899 (Security Update) — fixed build 10.0.14393.6897 KB5036969 (Monthly Rollup) — fixed build 6.2.9200.24821 KB5036960 (Monthly Rollup) — fixed build 6.3.9600.21924

🔗 References (21)