CVE-2021-33757HighCVSS 5.3

Windows Security Account Manager Remote Protocol Security Feature Bypass Vulnerability

Published
July 13, 2021
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2021-33757 →

📋 Description

How do the security updates released on July 13, 2021 provide protections for CVE-2021-33757? After the security updates released on July 13, 2021 or later are installed, Advanced Encryption Standard (AES) encryption will be the preferred method when using the MS-SAMR protocol to change or set account passwords on Windows clients if AES encryption is supported by the SAM server. Please see [KB5004605: Update adds AES encryption protections for CVE-2021-33757[(https://support.microsoft.com/help/5004605) for the following information: Changes made by this update How does this new behavior work? Event logging Registry settings FAQ

🎯 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 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 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 2012
  • +9 more not shown

✅ Remediation

KB5004244 (Security Update) — fixed build 10.0.17763.2061 KB5004245 (Security Update) — fixed build 10.0.18363.1679 KB5004237 (Security Update) — fixed build 10.0.19043.1110 KB5004237 (Security Update) — fixed build 10.0.19041.1110 KB5004237 (Security Update) — fixed build 10.0.19042.1110 KB5004249 (Security Update) — fixed build 10.0.10240.19003 KB5004238 (Security Update) — fixed build 10.0.14393.4530 KB5004289 (Monthly Rollup) — fixed build 6.1.7601.25661 KB5004307 (Security Only) — fixed build 6.1.7601.25661 KB5004298 (Monthly Rollup) — fixed build 6.3.9600.20069 KB5004285 (Security Only) — fixed build 6.3.9600.20069 KB5004305 (Monthly Rollup) — fixed build 6.0.6003.21167 KB5004299 (Security Only) — fixed build 6.0.6003.21167 KB5004294 (Monthly Rollup) — fixed build 6.2.9200.23409 KB5004302 (Security Only) — fixed build 6.2.9200.23409

🔗 References (27)