GLSA-200909-15 : Lynx: Arbitrary command execution

Critical Nessus Plugin ID 40962


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


The remote host is affected by the vulnerability described in GLSA-200909-15 (Lynx: Arbitrary command execution)

Clint Ruoho reported that the fix for CVE-2005-2929 (GLSA 200511-09) only disabled the lynxcgi:// handler when not using the advanced mode.
Impact :

A remote attacker can entice a user to access a malicious HTTP server, causing Lynx to execute arbitrary commands. NOTE: The advanced mode is not enabled by default. Successful exploitation requires the 'lynxcgi://' protocol to be registered with lynx on the victim's system.
Workaround :

There is no known workaround at this time.


All Lynx users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=www-client/lynx-2.8.6-r4'

See Also

Plugin Details

Severity: Critical

ID: 40962

File Name: gentoo_GLSA-200909-15.nasl

Version: $Revision: 1.11 $

Type: local

Published: 2009/09/14

Modified: 2018/01/12

Dependencies: 12634

Risk Information

Risk Factor: Critical


Base Score: 10

Temporal Score: 8.7

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

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2009/09/12

Reference Information

CVE: CVE-2005-2929, CVE-2008-4690

BID: 15395

GLSA: 200909-15