CVE-2023-29357 · netVigilance record NV24-0009
Microsoft SharePoint Server Privilege Escalation
past due ransomware
What to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA deadline 2024-01-31 · passed 2 years 7 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
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.
Who is affected
Microsoft SharePoint Server. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-303.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 2 years 7 months ago
Sources
- NVD entry for CVE-2023-29357 nvd.nist.gov/vuln/detail/CVE-2023-29357
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- msrc.microsoft.com msrc.microsoft.com/update-guide/vulnerability/CVE-2023-29357
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2023-29357