What is CVE-2023-21743?

CVE-2023-21743 refers to a security feature bypass vulnerability in Microsoft SharePoint Server.

How severe is CVE-2023-21743?

CVE-2023-21743 has a severity rating of 5.3 (critical).

Which versions of Microsoft SharePoint Server are affected by CVE-2023-21743?

CVE-2023-21743 affects Microsoft SharePoint Server, SharePoint Server 2016, SharePoint Server 2019, and SharePoint Server Subscription Edition.

How can I fix CVE-2023-21743?

To fix CVE-2023-21743, you should apply the relevant patches or updates provided by Microsoft for your specific version of SharePoint Server. Make sure to follow the remediation steps outlined by Microsoft.

Where can I find more information about CVE-2023-21743?

You can find more information about CVE-2023-21743 on the official Microsoft Security Response Center website.

Vulnerability/
CVE-2023-21743

medium

5.3

CWE

306

10/1/2023

2/8/2024

CVE-2023-21743: Microsoft SharePoint Server Security Feature Bypass Vulnerability

First published: Tue Jan 10 2023(Updated: )

Microsoft SharePoint Server Security Feature Bypass Vulnerability

Credit: secure@microsoft.com secure@microsoft.com

Affected Software	Affected Version	How to fix
Microsoft SharePoint Server
Microsoft SharePoint Server	=2016
Microsoft SharePoint Server	=2019
Microsoft SharePoint Enterprise Server 2016		fix available externally
Microsoft SharePoint Server 2019		fix available externally
Microsoft SharePoint Server Subscription Edition		fix available externally

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Reference Links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21743 (Advisory)

Frequently Asked Questions

What is CVE-2023-21743?
CVE-2023-21743 refers to a security feature bypass vulnerability in Microsoft SharePoint Server.
How severe is CVE-2023-21743?
CVE-2023-21743 has a severity rating of 5.3 (critical).
Which versions of Microsoft SharePoint Server are affected by CVE-2023-21743?
CVE-2023-21743 affects Microsoft SharePoint Server, SharePoint Server 2016, SharePoint Server 2019, and SharePoint Server Subscription Edition.
How can I fix CVE-2023-21743?
To fix CVE-2023-21743, you should apply the relevant patches or updates provided by Microsoft for your specific version of SharePoint Server. Make sure to follow the remediation steps outlined by Microsoft.
Where can I find more information about CVE-2023-21743?
You can find more information about CVE-2023-21743 on the official Microsoft Security Response Center website.

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collector/msrc-cve
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collector/nvd-api
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agent/weakness
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vendor/microsoft
canonical/microsoft sharepoint server
version/microsoft sharepoint server/2016
version/microsoft sharepoint server/2019
canonical/microsoft sharepoint enterprise server 2016
canonical/microsoft sharepoint server 2019
canonical/microsoft sharepoint server subscription edition

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