CVE-2021-40460HighCVSS 6.5

Windows Remote Procedure Call Runtime Security Feature Bypass Vulnerability

Published
October 12, 2021
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2021-40460 →

📋 Description

What kind of security feature could be bypassed by successfully exploiting this vulnerability? This vulnerability could allow an attacker to bypass Extended Protection for Authentication provided by SPN target name validation.

🎯 Affected products39

  • 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 1909 for 32-bit Systems
  • Windows 10 Version 1909 for ARM64-based Systems
  • Windows 10 Version 1909 for x64-based Systems
  • Windows 10 Version 2004 for 32-bit Systems
  • Windows 10 Version 2004 for ARM64-based Systems
  • Windows 10 Version 2004 for x64-based Systems
  • Windows 10 Version 20H2 for 32-bit Systems
  • Windows 10 Version 20H2 for ARM64-based Systems
  • Windows 10 Version 21H1 for 32-bit Systems
  • Windows 10 Version 21H1 for ARM64-based Systems
  • Windows 10 Version 21H1 for x64-based Systems
  • Windows 10 for 32-bit Systems
  • Windows 10 for x64-based Systems
  • Windows 11 version 21H2 for ARM64-based Systems
  • Windows 11 version 21H2 for x64-based Systems
  • Windows 7 for 32-bit Systems Service Pack 1
  • Windows 7 for x64-based Systems Service Pack 1
  • Windows 8.1 for 32-bit systems
  • Windows 8.1 for x64-based systems
  • Windows RT 8.1
  • 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
  • +9 more not shown

✅ Remediation

KB5006672 (Security Update) — fixed build 10.0.17763.2237 KB5006667 (Security Update) — fixed build 10.0.18363.1854 KB5006670 (Security Update) — fixed build 10.0.19043.1288 KB5006699 (Security Update) — fixed build 10.0.20348.288 KB5006670 (Security Update) — fixed build 10.0.19041.1288 KB5006670 (Security Update) — fixed build 10.0.19042.1288 KB5006674 (Security Update) — fixed build 10.0.22000.258 KB5006675 (Security Update) — fixed build 10.0.10240.19086 KB5006669 (Security Update) — fixed build 10.0.14393.4704 KB5006743 (Monthly Rollup) — fixed build 6.1.7601.25740 KB5006728 (Security Only) — fixed build 6.1.7601.25740 KB5006714 (Monthly Rollup) — fixed build 6.3.9600.20144 KB5006729 (Security Only) — fixed build 6.3.9600.20144 KB5006739 (Monthly Rollup) — fixed build 6.2.9200.23490 KB5006732 (Security Only) — fixed build 6.2.9200.23490

🔗 References (22)