Rapid7 Vulnerability & Exploit Database

Samba CVE-2016-2126: Flaws in Kerberos PAC validation can trigger privilege elevation.

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Samba CVE-2016-2126: Flaws in Kerberos PAC validation can trigger privilege elevation.

Severity
4
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:P)
Published
12/20/2016
Created
07/25/2018
Added
12/20/2016
Modified
06/22/2018

Description

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.

Solution(s)

  • samba-upgrade-4_3_13
  • samba-upgrade-4_4_8
  • samba-upgrade-4_5_3

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