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# This script was automatically generated from
# http://www.gentoo.org/security/en/glsa/glsa-200511-09.xml
# It is released under the Nessus Script Licence.
# The messages are release under the Creative Commons - Attribution /
# Share Alike license. See http://creativecommons.org/licenses/by-sa/2.0/
#
# Avisory is copyright 2001-2005 Gentoo Foundation, Inc.
# GLSA2nasl Convertor is copyright 2004 Michel Arboi <mikhail@nessus.org>
if (! defined_func('bn_random')) exit(0);
if (description)
{
script_id(20196);
script_version("$Revision: 1.1 $");
script_xref(name: "GLSA", value: "200511-09");
desc = '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
References:
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2929
http://www.idefense.com/application/poi/display?id=338&type=vulnerabilities
Solution:
All Lynx users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/lynx-2.8.5-r2"
Risk factor : Medium
';
script_description(english: desc);
script_copyright(english: "(C) 2005 Michel Arboi <mikhail@nessus.org>");
script_name(english: "[GLSA-200511-09] Lynx: Arbitrary command execution");
script_category(ACT_GATHER_INFO);
script_family(english: "Gentoo Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys('Host/Gentoo/qpkg-list');
script_summary(english: 'Lynx: Arbitrary command execution');
exit(0);
}
include('qpkg.inc');
if (qpkg_check(package: "www-client/lynx", unaffected: make_list("ge 2.8.5-r2"), vulnerable: make_list("lt 2.8.5-r2")
)) { security_warning(0); exit(0); }
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