vulnerability

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
Dec 20, 2016
Added
Dec 20, 2016
Modified
Mar 27, 2026

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.

Solutions

samba-upgrade-4_3_13samba-upgrade-4_4_8samba-upgrade-4_5_3
Title
Rapid7 Labs

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