Microsoft SharePoint Server Elevation of Privilege Vulnerability
Published 2023-06-14 00:15:10
Updated 2024-06-10 15:25:06
View at NVD,
Vulnerability category: Gain privilege

CVE-2023-29357 is in the CISA Known Exploited Vulnerabilities Catalog

This issue is known to have been leveraged as part of a ransomware campaign.
CISA vulnerability name:
Microsoft SharePoint Server Privilege Escalation Vulnerability
CISA required action:
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA description:
Microsoft SharePoint Server contains an unspecified vulnerability that allows an unauthenticated attacker, who has gained access to spoofed JWT authentication tokens, to use them for executing a network attack. This attack bypasses authentication, enabling the attacker to gain administrator privileg
Added on 2024-01-10 Action due date 2024-01-31

Exploit prediction scoring system (EPSS) score for CVE-2023-29357

Probability of exploitation activity in the next 30 days EPSS Score History
~ 99 %
Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2023-29357

  • Sharepoint Dynamic Proxy Generator Unauth RCE
    Disclosure Date: 2023-05-01
    First seen: 2024-04-18
    This module exploits two vulnerabilities in Sharepoint 2019, an auth bypass CVE-2023-29357 which was patched in June of 2023 and CVE-2023-24955, an RCE which was patched in May of 2023. The auth bypass allows attackers to impersonate the Sharepoint Admin user. This vu

CVSS scores for CVE-2023-29357

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
Microsoft Corporation

CWE ids for CVE-2023-29357

References for CVE-2023-29357

Products affected by CVE-2023-29357

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