CVE-2016-2126
MEDIUM severity · CVSS 6.5 · CWE-264
6.5CVSS MEDIUM
Summary
Samba version 4.0.0 up to 4.5.2 is vulnerable to privilege elevation due to incorrect handling of the PAC (Privilege Attribute Certificate) checksum. A remote, authenticated, attacker can cause the winbindd process to crash using a legitimate Kerberos ticket. A local service with access to the winbindd privileged pipe can cause winbindd to cache elevated access permissions.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)7%
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://rhn.redhat.com/errata/RHSA-2017-0494.htmlAdvisory
- http://rhn.redhat.com/errata/RHSA-2017-0495.htmlAdvisory
- http://rhn.redhat.com/errata/RHSA-2017-0662.htmlAdvisory
- http://rhn.redhat.com/errata/RHSA-2017-0744.htmlAdvisory
- http://www.securityfocus.com/bid/94994Advisory
- http://www.securitytracker.com/id/1037495Advisory
- https://access.redhat.com/errata/RHSA-2017:1265Advisory
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43730Advisory