Medium [CVE-2021-34517] Microsoft SharePoint Server Spoofing Vulnerability
This medium-severity Microsoft Server advisory covers CVE-2021-34517 affecting Microsoft SharePoint Enterprise Server 2013 Service Pack 1, Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Foundation 2013 Service Pack 1.
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Summary
Microsoft SharePoint Server Spoofing Vulnerability
Affected products named by the advisory: Microsoft SharePoint Enterprise Server 2013 Service Pack 1; Microsoft SharePoint Enterprise Server 2016; Microsoft SharePoint Foundation 2013 Service Pack 1; Microsoft SharePoint Server 2019.
- Microsoft SharePoint Enterprise Server 2013 Service Pack 1 15.0.0 before 15.0.5363.1000
- Microsoft SharePoint Enterprise Server 2016 16.0.0 before 16.0.5188.1000
- Microsoft SharePoint Foundation 2013 Service Pack 1 15.0.0 before 15.0.5363.1000
- Microsoft SharePoint Server 2019 16.0.0 before 16.0.10376.20001
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
- 15.0.5363.1000
- 16.0.5188.1000
- 16.0.10376.20001
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation
Upgrade to a fixed release: 15.0.5363.1000, 16.0.5188.1000, 16.0.10376.20001. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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