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SharePoint Authentication bypass (CVE-2023-29357) - Vulnerability Database

SharePoint Authentication bypass (CVE-2023-29357)

Description

SharePoint has an authentication bypass vulnerability. An attacker can bypass the authentication with a specially crafted JWT token and get full access to the system.

Remediation

Upgrade to the latest version of SharePoint

References

SharePoint Pre-Auth RCE chain (CVE-2023-29357 & CVE-2023-24955)
Microsoft SharePoint Server Elevation of Privilege Vulnerability

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Severity

Critical

Classification

CVE-2023-29357
CWE-287
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Tags

Authentication Bypass
Known Vulnerabilities