CVE-2016-2125
Vulnerability Summary
Timeline
Description
It was found that Samba before versions 4.5.3, 4.4.8, 4.3.13 always requested forwardable tickets when using Kerberos authentication. A service to which Samba authenticated using Kerberos could subsequently use the ticket to impersonate Samba to other services or domain users.
CVSS Metrics
- v3.1•MEDIUM•Score: 6.5CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- v3.0•MEDIUM•Score: 6.4CVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
- v2.0•LOW•Score: 3.3AV:A/AC:L/Au:N/C:P/I:N/A:N
EPSS Trends
Current EPSS score: 8.66%• Percentile: 93%
Techniques & Countermeasures
- CWE-20•Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
- CWE-287•Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
Affected Systems
- redhat•enterprise_linux_desktop
6.0 | 7.0
- redhat•enterprise_linux_server
6.0 | 7.0
- redhat•enterprise_linux_server_aus
7.4 | 7.6
- redhat•enterprise_linux_server_eus
7.3 | 7.4 | 7.5 | 7.6
- redhat•enterprise_linux_server_tus
7.3 | 7.6
- redhat•enterprise_linux_workstation
6.0 | 7.0
- redhat•gluster_storage
3.0
- samba•samba
≥ 3.0.25, < 4.3.13 | ≥ 4.4.0, < 4.4.8 | ≥ 4.5.0, < 4.5.3
- [unknown]•samba
4.5.3 | 4.4.8 | 4.3.13
References (9)
- http://rhn.redhat.com/errata/RHSA-2017-0495.html
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-2125
- http://rhn.redhat.com/errata/RHSA-2017-0494.html
- http://www.securitytracker.com/id/1037494
- https://access.redhat.com/errata/RHSA-2017:1265
- http://www.securityfocus.com/bid/94988
- https://www.samba.org/samba/security/CVE-2016-2125.html
- http://rhn.redhat.com/errata/RHSA-2017-0744.html
- http://rhn.redhat.com/errata/RHSA-2017-0662.html