Joined: 12 May 2004
|Posted: Sun Nov 13, 2005 5:27 pm Post subject: [ GLSA 200511-09 ] Lynx: Arbitrary command execution
|Gentoo Linux Security Advisory
Title: Lynx: Arbitrary command execution (GLSA 200511-09)
Date: November 13, 2005
Lynx is vulnerable to an issue which allows the remote execution of
Lynx is a fully-featured WWW client for users running
cursor-addressable, character-cell display devices such as vt100
terminals and terminal emulators.
Vulnerable: < 2.8.5-r2
Unaffected: >= 2.8.5-r2
Architectures: All supported architectures
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.
A remote attacker can entice a user to access a malicious HTTP
server, causing Lynx to execute arbitrary commands.
Disable "lynxcgi" links by specifying the following directive in
All Lynx users should upgrade to the latest version:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/lynx-2.8.5-r2"
iDefense Security Advisory 11.11.05
Last edited by GLSA on Sun Mar 27, 2011 4:20 am; edited 5 times in total