CVE-2024-21305HighCVSS 4.4

Hypervisor-Protected Code Integrity (HVCI) Security Feature Bypass Vulnerability

Published
January 9, 2024
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2024-21305 →

📋 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? A hypervisor-protected code integrity (HVCI) security feature bypass vulnerability could exist on some specific Microsoft Surface hardware computers that are still in support, when Windows incorrectly allows certain kernel-mode pages to be marked as Read, Write, Execute (RWX) even with HVCI enabled. To exploit this vulnerability an attacker could run a specially crafted application at administrator level that exploits a signed driver to bypass code integrity protections in Windows. The following versions of Microsoft Surface computers are exploitable by this vulnerability: Hub 3 Pro 5 - not updated due to end of life Pro 7 - not updated due to end of life Laptop Studio Laptop Go 2 Pro 7+ Studio 2 + Laptop 4 (Intel) Pro 8 Hub 2S Hub 2S Book 3 Laptop 3 (Intel) Laptop Go Studio 2

🎯 Affected products20

  • 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 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 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

KB5034127 (Security Update) — fixed build 10.0.17763.5329 KB5034129 (Security Update) — fixed build 10.0.20348.2227 KB5034121 (Security Update) — fixed build 10.0.22000.2713 KB5034122 (Security Update) — fixed build 10.0.19044.3930 KB5034123 (Security Update) — fixed build 10.0.22621.3007 KB5034122 (Security Update) — fixed build 10.0.19045.3930 KB5034123 (Security Update) — fixed build 10.0.22631.3007 KB5034130 (Security Update) — fixed build 10.0.25398.643

🔗 References (13)