CVE-2023-29357

Microsoft SharePoint Server Privilege Escalation Vulnerability — Microsoft / SharePoint Server

Risk tier: Critical — known ransomware use

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 privileges.

NVD enrichment (full description, CVSS vector, CWEs) has not completed for this CVE yet — shown above is the CISA KEV short description only.

Scoring

  • CVSS: Not yet available
  • EPSS exploitation probability: Not yet available
  • EPSS percentile: Not yet available

CISA KEV status

  • Added to KEV: 2024-01-10
  • Remediation due date: 2024-01-31
  • Known ransomware campaign use: Known

All exploited vulnerabilities