Samba: smbd allows client access to unix domain sockets on the file system as root
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- samba
Version range not reported
- samba
Version range not reported
- samba
Version range not reported
- samba
Version range not reported
- samba
Version range not reported
- samba
Version range not reported
- samba
Version range not reported
- samba
Version range not reported
- samba
Version range not reported
- samba
Version range not reported
- samba4
Version range not reported
- samba
Version range not reported
- samba
Version range not reported