MS.SharePoint.Server.JSON.Web.Tokens.Privilege.Elevation

Description

This indicates an attack attempt to exploit an Elevation Of Privilege Vulnerability in Microsoft Sharepoint Server.
The vulnerability is due to an error in the vulnerable application when handling a maliciously crafted request. A remote attacker may be able to exploit this to gain administrative privileges.

Outbreak Alert

CVE-2023-29357 is an authentication bypass vulnerability, which means that adversaries may use it to escalate privileges on affected installations of Microsoft SharePoint Server. If the user is a privileged account, such as an administrator, the attacker will gain elevated privileges.

View the full Outbreak Alert Report

Affected Products

Microsoft SharePoint Server 2019

Impact

System Compromise: Remote attackers can gain control of vulnerable systems.

Recommended Actions

Apply the most recent upgrade or patch from the vendor.
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-29357

References