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High MSRC-CVE-2021-33757 1 CVE

Windows Security Account Manager Remote Protocol Security Feature Bypass Vulnerability

Published Jul 13, 2021 · Updated Jul 13, 2021

Vendor: Microsoft

Summary

Impact: Security Feature Bypass. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

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

Security updates
10.0.17763.2061 — https://support.microsoft.com/help/5004244
10.0.18363.1679 — https://support.microsoft.com/help/5004245
10.0.19043.1110 — https://support.microsoft.com/help/5004237
10.0.10240.19003 — https://support.microsoft.com/help/5004249
10.0.14393.4530 — https://support.microsoft.com/help/5004238
6.1.7601.25661 — https://support.microsoft.com/help/5004289
6.1.7601.25661 — https://support.microsoft.com/help/5004307
6.3.9600.20069 — https://support.microsoft.com/help/5004298
6.3.9600.20069 — https://support.microsoft.com/help/5004285
6.0.6003.21167 — https://support.microsoft.com/help/5004305
6.0.6003.21167 — https://support.microsoft.com/help/5004299
6.2.9200.23409 — https://support.microsoft.com/help/5004294
6.2.9200.23409 — https://support.microsoft.com/help/5004302

Vulnerabilities 1

Revision history

  1. #1

    Information published.

References