Cryptographic issues in Samba - CVE-2013-4476
Published: November 13, 2013 / Updated: July 28, 2020
Vulnerability identifier: #VU32623
CSH Severity: Low
CVSS v4: 2.1 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2013-4476
CWE-ID: CWE-310
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local non-authenticated attacker to gain access to sensitive information.
Samba 4.0.x before 4.0.11 and 4.1.x before 4.1.1, when LDAP or HTTP is provided over SSL, uses world-readable permissions for a private key, which allows local users to obtain sensitive information by reading the key file, as demonstrated by access to the local filesystem on an AD domain controller.
Affected software
Samba
samba (Alpine package)
Slackware Linux
samba (Alpine package)
Slackware Linux
How to mitigate CVE-2013-4476
Install update from vendor's website.
Samba - update to 4.0.11
samba (Alpine package) - update to 3.6.20-r0
samba (Alpine package) - update to 3.6.20-r0
External References
- http://lists.opensuse.org/opensuse-updates/2013-11/msg00083.html
- http://lists.opensuse.org/opensuse-updates/2013-12/msg00088.html
- http://security.gentoo.org/glsa/glsa-201502-15.xml
- http://www.samba.org/samba/history/samba-4.0.11.html
- http://www.samba.org/samba/history/samba-4.1.1.html
- http://www.samba.org/samba/security/CVE-2013-4476