SB2021121736 - Privilege escalation in Microsoft SharePoint
Published: December 17, 2021 Updated: February 4, 2024
Security Bulletin ID
SB2021121736
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-43876)
The vulnerability allows a remote user to escalate privileges within the application.
The vulnerability exists due to application does not properly impose security restrictions. A remote user with the rights to use the SharePoint Migration tool and the ability to create a new SharePoint site collection can escalate privileges within the application.
Remediation
Install update from vendor's website.