Permissions, Privileges, and Access Controls in Microsoft SharePoint Foundation - CVE-2021-1718

 

Permissions, Privileges, and Access Controls in Microsoft SharePoint Foundation - CVE-2021-1718

Published: January 12, 2021


Vulnerability identifier: #VU49396
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-1718
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Microsoft
Affected software:
Microsoft SharePoint Foundation

Detailed vulnerability description

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to tampering issue in SharePoint Server, which leads to security restrictions bypass and privilege escalation.


How to mitigate CVE-2021-1718

Install updates from vendor's website.

Sources