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Rewterz Threat Advisory – Multiple Microsoft SharePoint Vulnerabilities

Severity

High

Analysis Summary

CVE-2021-31963

Microsoft SharePoint Server could allow a remote authenticated attacker to execute arbitrary code on the system. By sending a specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary code on the system with privileges of the victim.

CVE-2021-31964,CVE-2021-31948,CVE-2021-31950

Microsoft SharePoint Server could allow a remote authenticated attacker to conduct spoofing attacks.

Impact

  • Unauthorized Access
  • Spoofing

Affected Vendors

Microsoft

Affected Products

  • Microsoft SharePoint Foundation 2013 SP1
  • Microsoft SharePoint Enterprise Server 2016
  • Microsoft SharePoint Enterprise Server 2013
  • Microsoft SharePoint Server 2019

Remediation

Use Microsoft Automatic Update to apply the appropriate patch for your system, or the Microsoft Security Update Guide to search for available patches.

https://msrc.microsoft.com/update-guide/en-us/vulnerability/CVE-2021-31963