CVE-2021-33757: Windows Security Account Manager Remote Protocol Security Feature Bypass Vulnerability

Published Jul 13, 2021
·
Updated

Windows Security Account Manager Remote Protocol Security Feature Bypass Vulnerability

Affected Software

57 affected componentsFixes available
Microsoft Windows 10
Microsoft Windows 10=20h2
Microsoft Windows 10=21h1
Microsoft Windows 10=1607
Microsoft Windows 10=1809
Microsoft Windows 10=1909
Microsoft Windows 10=2004
Microsoft Windows 7=sp1
Microsoft Windows 8.1
Microsoft Windows RT 8.1
Microsoft Windows Server 2008=sp1
Microsoft Windows Server 2008=sp2
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
Microsoft Windows Server 2016
Microsoft Windows Server 2016=20h2
Microsoft Windows Server 2016=2004
Microsoft Windows Server 2019
Microsoft Windows Server 2008 R2<6.1.7601.25661
6.1.7601.25661
Microsoft Windows Server 2012 R2<6.3.9600.20069
6.3.9600.20069
Microsoft Windows RT 8.1<6.3.9600.20069
6.3.9600.20069
Microsoft Windows 7<6.1.7601.25661
6.1.7601.25661
Microsoft Windows Server 2008<6.0.6003.21167
6.0.6003.21167
Microsoft Windows Server 2012<6.2.9200.23409
6.2.9200.23409
Microsoft Windows Server 2008<6.0.6003.21167
6.0.6003.21167
Microsoft Windows Server 2012<6.2.9200.23409
6.2.9200.23409
Microsoft Windows Server 2008<6.0.6003.21167
6.0.6003.21167
Microsoft Windows 7<6.1.7601.25661
6.1.7601.25661
Microsoft Windows Server 2012 R2<6.3.9600.20069
6.3.9600.20069
Microsoft Windows 8.1 for x64-based systems<6.3.9600.20069
6.3.9600.20069
Microsoft Windows Server 2008 R2<6.1.7601.25661
6.1.7601.25661
Microsoft Windows Server 2008<6.0.6003.21167
6.0.6003.21167
Microsoft Windows 8.1 for 32-bit systems<6.3.9600.20069
6.3.9600.20069
Microsoft Windows 10<10.0.10240.19003
10.0.10240.19003
Microsoft Windows Server=2004
10.0.19041.1110
Microsoft Windows 10=1607
10.0.14393.4530
Microsoft Windows 10<10.0.10240.19003
10.0.10240.19003
Microsoft Windows Server=20H2
10.0.19042.1110
Microsoft Windows Server 2016<10.0.14393.4530
10.0.14393.4530
Microsoft Windows Server 2016<10.0.14393.4530
10.0.14393.4530
Microsoft Windows 10=1607
10.0.14393.4530
Microsoft Windows 10=20H2
10.0.19042.1110
Microsoft Windows 10=20H2
10.0.19042.1110
Microsoft Windows 10=2004
10.0.19041.1110
Microsoft Windows 10=21H1
10.0.19043.1110
Microsoft Windows 10=2004
10.0.19041.1110
Microsoft Windows 10=21H1
10.0.19043.1110
Microsoft Windows 10=1909
10.0.18363.1679
Microsoft Windows 10=21H1
10.0.19043.1110
Microsoft Windows 10=1909
10.0.18363.1679
Microsoft Windows 10=1909
10.0.18363.1679
Microsoft Windows 10=2004
10.0.19041.1110
Microsoft Windows Server 2019<10.0.17763.2061
10.0.17763.2061
Microsoft Windows Server 2019<10.0.17763.2061
10.0.17763.2061
Microsoft Windows 10=1809
10.0.17763.2061
Microsoft Windows 10=1809
10.0.17763.2061
Microsoft Windows 10=1809
10.0.17763.2061

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 6.3.9600.20069Patch KB5004285
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 6.1.7601.25661Patch KB5004307
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 6.3.9600.20069Patch KB5004298
  4. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 6.0.6003.21167Patch KB5004299
  5. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 6.2.9200.23409Patch KB5004302
  6. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.10240.19003Patch KB5004249
  7. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.19041.1110Patch KB5004237
  8. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.14393.4530Patch KB5004238
  9. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.19042.1110Patch KB5004237
  10. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.19043.1110Patch KB5004237
  11. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.18363.1679Patch KB5004245
  12. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.17763.2061Patch KB5004244

Event History

Jul 13, 2021
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
Jul 14, 2021
CVE Published
via MITRE·05:53 PM
Data Sourced
via MITRE·05:53 PM
DescriptionSeverity
Data Sourced
via NVD·06:15 PM
RemedyDescriptionSeverityAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2021-33757?

CVE-2021-33757 has been classified as a security feature bypass vulnerability.

2

How do I fix CVE-2021-33757?

To mitigate CVE-2021-33757, ensure that your Windows software is updated with the latest security patches from Microsoft.

3

What systems are affected by CVE-2021-33757?

CVE-2021-33757 affects various versions of Windows 10, Windows 7, Windows 8.1, and multiple Windows Server editions.

4

Is CVE-2021-33757 exploitable remotely?

Yes, CVE-2021-33757 can be exploited remotely, allowing attackers to bypass security features.

5

Can I still use my system if it has CVE-2021-33757?

While you can continue using your system, it is recommended to apply the relevant updates to protect against potential exploitation of CVE-2021-33757.

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