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GLSA-200909-15 : Lynx: Arbitrary command execution

critical Nessus Plugin ID 40962

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-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.

Solution

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

See Also

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

https://security.gentoo.org/glsa/200909-15

Plugin Details

Severity: Critical

ID: 40962

File Name: gentoo_GLSA-200909-15.nasl

Version: 1.15

Type: local

Published: 9/14/2009

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A: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 Ease: No known exploits are available

Patch Publication Date: 9/12/2009

Reference Information

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

BID: 15395

GLSA: 200909-15