Vendor / Project: Microsoft Product: SharePoint Server 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. Required Action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Due Date: 2024-01-31 Ransomware Campaign Use: Known CWEs: CWE-303 Notes: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-29357; https://nvd.nist.gov/vuln/detail/CVE-2023-29357