GLSA-200509-17 : Webmin, Usermin: Remote code execution through PAM authentication

High Nessus Plugin ID 19816


The remote Gentoo host is missing one or more security-related patches.


The remote host is affected by the vulnerability described in GLSA-200509-17 (Webmin, Usermin: Remote code execution through PAM authentication)

Keigo Yamazaki discovered that the webserver, used in both Webmin and Usermin, does not properly validate authentication credentials before sending them to the PAM (Pluggable Authentication Modules) authentication process. The default configuration shipped with Gentoo does not enable the 'full PAM conversations' option and is therefore unaffected by this flaw.
Impact :

A remote attacker could bypass the authentication process and run any command as the root user on the target server.
Workaround :

Do not enable 'full PAM conversations' in the Authentication options of Webmin and Usermin.


All Webmin users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=app-admin/webmin-1.230' All Usermin users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=app-admin/usermin-1.160'

See Also

Plugin Details

Severity: High

ID: 19816

File Name: gentoo_GLSA-200509-17.nasl

Version: $Revision: 1.12 $

Type: local

Published: 2005/10/05

Modified: 2015/04/13

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:usermin, p-cpe:/a:gentoo:linux:webmin, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 2005/09/24

Vulnerability Publication Date: 2005/09/20

Reference Information

CVE: CVE-2005-3042

OSVDB: 19575

GLSA: 200509-17