Permissions, Privileges, and Access Controls in Samba - CVE-2014-8143
Published: January 17, 2015 / Updated: August 9, 2020
Vulnerability identifier: #VU40936
CSH Severity: Medium
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2014-8143
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote #AU# to execute arbitrary code.
Samba 4.0.x before 4.0.24, 4.1.x before 4.1.16, and 4.2.x before 4.2rc4, when an Active Directory Domain Controller (AD DC) is configured, allows remote authenticated users to set the LDB userAccountControl UF_SERVER_TRUST_ACCOUNT bit, and consequently gain privileges, by leveraging delegation of authority for user-account or computer-account creation.
Affected software
Samba
Slackware Linux
Slackware Linux
How to mitigate CVE-2014-8143
Install update from vendor's website.
External References
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00031.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00042.html
- http://secunia.com/advisories/62594
- http://www.securityfocus.com/bid/72278
- http://www.securitytracker.com/id/1031615
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2015&m=slackware-security.416326
- http://www.ubuntu.com/usn/USN-2481-1
- https://download.samba.org/pub/samba/patches/security/samba-4.0.23-CVE-2014-8143.patch
- https://download.samba.org/pub/samba/patches/security/samba-4.1.15-CVE-2014-8143.patch
- https://exchange.xforce.ibmcloud.com/vulnerabilities/100596
- https://www.samba.org/samba/security/CVE-2014-8143