CVE-2023-3961
CVSS v3
9.8
CRITICAL
Score EPSS
1.9 %
probabilité d’exploitation
CISA KEV
Non
exploitation connue
Exploitation
—
statut SSVC
Description
A path traversal vulnerability was identified in Samba when processing client pipe names connecting to Unix domain sockets within a private directory. Samba typically uses this mechanism to connect SMB clients to remote procedure call (RPC) services like SAMR LSA or SPOOLSS, which Samba initiates on demand. However, due to inadequate sanitization of incoming client pipe names, allowing a client to send a pipe name containing Unix directory traversal characters (../). This could result in SMB clients connecting as root to Unix domain sockets outside the private directory. If an attacker or client managed to send a pipe name resolving to an external service using an existing Unix domain socket, it could potentially lead to unauthorized access to the service and consequential adverse events, including compromise or service crashes.
Détails techniques
- Publiée le
- 2023-11-03
Questions fréquentes
Qu’est-ce que CVE-2023-3961 ?
A path traversal vulnerability was identified in Samba when processing client pipe names connecting to Unix domain sockets within a private directory. Samba typically uses this mechanism to connect SMB clients to remote procedure call (RPC) services like SAMR LSA or SPOOLSS, which Samba initiates on demand. However, due to inadequate sanitization of incoming client pipe names, allowing a client to send a pipe name containing Unix directory traversal characters (../). This could result in SMB clients connecting as root to Unix domain sockets outside the private directory. If an attacker or client managed to send a pipe name resolving to an external service using an existing Unix domain socket, it could potentially lead to unauthorized access to the service and consequential adverse events, including compromise or service crashes.
CVE-2023-3961 est-elle activement exploitée ?
Aucune exploitation active de CVE-2023-3961 n’est confirmée. Le score EPSS est de 1.9 %, soit la probabilité estimée d’exploitation dans les 30 prochains jours.
Quel est le score CVSS de CVE-2023-3961 ?
CVE-2023-3961 a un score de base CVSS v3 de 9.8 (gravité CRITICAL).
CVE-2023-3961 touche-t-elle votre environnement ?
Utilisez isMalicious pour vérifier si l’une de vos IP ou l’un de vos domaines est associé aux IOC de cette vulnérabilité.
Sans carte bancaire · 500 vérifications gratuites par mois · Clé API gratuite
Autres vulnérabilités 2023 à trier
Classées par probabilité d’exploitation (EPSS).