CVE-2016-2125

high-risk
Published 2018-10-31

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.

Do I need to act?

!
11.7% chance of exploitation in next 30 days
EPSS score — higher than 88% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.5/10 Medium
ADJACENT_NETWORK / LOW complexity

Affected Products (16)

Affected Vendors

Redhat Samba

References (18)

Third Party Advisory http://rhn.redhat.com/errata/RHSA-2017-0494.html
Third Party Advisory http://rhn.redhat.com/errata/RHSA-2017-0495.html
Third Party Advisory http://rhn.redhat.com/errata/RHSA-2017-0662.html
Third Party Advisory http://rhn.redhat.com/errata/RHSA-2017-0744.html
Third Party Advisory http://www.securityfocus.com/bid/94988
Third Party Advisory http://www.securitytracker.com/id/1037494
Third Party Advisory https://access.redhat.com/errata/RHSA-2017:1265
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-2125
Mitigation https://www.samba.org/samba/security/CVE-2016-2125.html
Third Party Advisory http://rhn.redhat.com/errata/RHSA-2017-0494.html
Third Party Advisory http://rhn.redhat.com/errata/RHSA-2017-0495.html
Third Party Advisory http://rhn.redhat.com/errata/RHSA-2017-0662.html
Third Party Advisory http://rhn.redhat.com/errata/RHSA-2017-0744.html
Third Party Advisory http://www.securityfocus.com/bid/94988
Third Party Advisory http://www.securitytracker.com/id/1037494
Third Party Advisory https://access.redhat.com/errata/RHSA-2017:1265
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-2125
Mitigation https://www.samba.org/samba/security/CVE-2016-2125.html
50
/ 100
high-risk
Severity 21/34 · High
Exploitability 11/34 · Low
Exposure 18/34 · Moderate