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GLSA-200511-09 : Lynx: Arbitrary command execution

high Nessus Plugin ID 20196

Synopsis

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

Description

The remote host is affected by the vulnerability described in GLSA-200511-09 (Lynx: Arbitrary command execution)

 iDefense labs discovered a problem within the feature to execute local cgi-bin programs via the 'lynxcgi:' URI handler. Due to a configuration error, the default settings allow websites to specify commands to run as the user running Lynx.
 Impact :

 A remote attacker can entice a user to access a malicious HTTP server, causing Lynx to execute arbitrary commands.
 Workaround :

 Disable 'lynxcgi' links by specifying the following directive in lynx.cfg:
 TRUSTED_LYNXCGI:none

Solution

All Lynx users should upgrade to the latest version:
 # emerge --sync # emerge --ask --oneshot --verbose '>=www-client/lynx-2.8.5-r2'

See Also

http://www.nessus.org/u?3509b5b3

https://security.gentoo.org/glsa/200511-09

Plugin Details

Severity: High

ID: 20196

File Name: gentoo_GLSA-200511-09.nasl

Version: 1.18

Type: local

Published: 11/15/2005

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.5

CVSS v2

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:lynx, cpe:/o:gentoo:linux

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

Patch Publication Date: 11/13/2005

Vulnerability Publication Date: 11/11/2005

Reference Information

CVE: CVE-2005-2929

GLSA: 200511-09