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CVE-2023-3961 Detail

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.


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
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References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://access.redhat.com/errata/RHSA-2023:6209 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2023:6744 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2023:7371
https://access.redhat.com/errata/RHSA-2023:7408
https://access.redhat.com/errata/RHSA-2023:7464
https://access.redhat.com/errata/RHSA-2023:7467
https://access.redhat.com/security/cve/CVE-2023-3961 Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=2241881 Issue Tracking 
https://bugzilla.samba.org/show_bug.cgi?id=15422 Exploit  Issue Tracking 
https://www.samba.org/samba/security/CVE-2023-3961.html Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') cwe source acceptance level NIST   Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

11 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-3961
NVD Published Date:
11/03/2023
NVD Last Modified:
09/16/2024
Source:
Red Hat, Inc.