SB2014031408 - Permissions, Privileges, and Access Controls in Samba
Published: March 14, 2014 Updated: July 28, 2020
Security Bulletin ID
SB2014031408
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2013-6442)
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
The owner_set function in smbcacls.c in smbcacls in Samba 4.0.x before 4.0.16 and 4.1.x before 4.1.6 removes an ACL during use of a --chown or --chgrp option, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances by leveraging an unintended administrative change.
Remediation
Install update from vendor's website.
References
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136864.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-June/134717.html
- http://lists.opensuse.org/opensuse-updates/2014-03/msg00062.html
- http://www.samba.org/samba/history/samba-4.0.16.html
- http://www.samba.org/samba/history/samba-4.1.6.html
- http://www.samba.org/samba/security/CVE-2013-6442
- http://www.securityfocus.com/bid/66232
- https://bugzilla.samba.org/show_bug.cgi?id=10327