Samba Winbind nss_info Extension Local Privilege Escalation

medium Nessus Plugin ID 17719


The remote Samba server is affected by a local privilege escalation vulnerability.


According to its banner, the version of the Samba server installed on the remote host is affected by a local privilege escalation vulnerability. Specifically, the Winbind nss_info extension, when the 'winbind nss info' option is set to 'rfc2307' or 'sfu', grants local users the privileges of gid 0 if the 'RFC2307' or 'Services for UNIX' primary group attribute is not defined.


Upgrade to Samba version 3.0.26 or later.

See Also

Plugin Details

Severity: Medium

ID: 17719

File Name: samba_3_0_26.nasl

Version: 1.6

Type: remote

Family: Misc.

Published: 11/18/2011

Updated: 7/27/2018

Configuration: Enable paranoid mode

Risk Information


Risk Factor: Medium

Score: 5.9


Risk Factor: Medium

Base Score: 6.9

Temporal Score: 5.1

Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/a:samba:samba

Required KB Items: SMB/NativeLanManager, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 9/11/2007

Vulnerability Publication Date: 9/11/2007

Reference Information

CVE: CVE-2007-4138

BID: 25636

CWE: 264