CVE-2023-29357
Microsoft SharePoint Server Privilege Escalation Vulnerability
CVSS
—
Sin CVSS
EPSS
100.0%
p100
KEV
SÍ
10 ene 2024
Exploit Today
80
0-100
Publicado: — · Última mod.: —
Producto
Microsoft / SharePoint Server
Vulnerabilidad
Microsoft SharePoint Server Privilege Escalation Vulnerability
Añadido a KEV
10 ene 2024
Remediar antes de
31 ene 2024
Uso conocido en ransomware
Sí
Descripción resumida
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.
Acción requerida
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Notas
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-29357; https://nvd.nist.gov/vuln/detail/CVE-2023-29357