PT-2016-3331 · Samba Team+6 · Samba+5
Stefan Metzmacher
·
Published
2015-04-01
·
Updated
2024-06-15
·
CVE-2016-2112
CVSS v3.1
5.9
Medium
| Vector | AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |
Name of the Vulnerable Software and Affected Versions
Samba versions 3.x through 4.4.1
Samba versions 4.3.x through 4.3.7
Samba versions 4.2.x through 4.2.10
Description
The issue is related to a weakness in the security elements of the LDAP library in the Samba network interaction software package. This weakness can be exploited by a remote attacker to impact data integrity. Specifically, the bundled LDAP client library does not recognize the
client ldap sasl wrapping setting, allowing man-in-the-middle attackers to perform LDAP protocol-downgrade attacks by modifying the client-server data stream.Recommendations
For Samba versions 3.x through 4.4.1, update to version 4.4.2 or later.
For Samba versions 4.3.x through 4.3.7, update to version 4.3.8 or later.
For Samba versions 4.2.x through 4.2.10, update to version 4.2.11 or later.
As a temporary workaround, consider disabling the LDAP client library until a patch is available. Restrict access to the vulnerable LDAP protocol to minimize the risk of exploitation. Avoid using the
client ldap sasl wrapping setting in the affected Samba configuration until the issue is resolved.Fix
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Centos
Red Hat
Samba
Suse
Ubuntu