Date: Wed, 24 Nov 2004 10:01:35 +0100
From: Sune Kloppenborg Jeppesen <jaervosz@gentoo.org.>
To: [email protected]Subject: [ GLSA 200411-33 ] TWiki: Arbitrary command execution
Cc: [email protected], [email protected],
[email protected]
--nextPart3687616.ztohsqJkHV
Content-Type: text/plain;
charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline
=2D - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 200411-33
=2D - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
=2D - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: High
Title: TWiki: Arbitrary command execution
Date: November 24, 2004
Bugs: #71035
ID: 200411-33
=2D - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Synopsis
=3D=3D=3D=3D=3D=3D=3D=3D
A bug in the TWiki search function allows an attacker to execute
arbitrary commands with the permissions of the user running TWiki.
Background
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
TWiki is a Web-based groupware tool based around the concept of wiki
pages that can be edited by anybody with a Web browser.
Affected packages
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 www-apps/twiki < 20040902 >=3D 20040902=20
Description
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
The TWiki search function, which uses a shell command executed via the
Perl backtick operator, does not properly escape shell metacharacters
in the user-provided search string.
Impact
=3D=3D=3D=3D=3D=3D
An attacker can insert malicious commands into a search request,
allowing the execution of arbitrary commands with the privileges of the
user running TWiki (usually the Web server user).
Workaround
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
There is no known workaround at this time.
Resolution
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
All TWiki users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=3Dwww-apps/twiki-20040902"
References
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
[ 1 ] TWiki Security Alert
http://twiki.org/cgi-bin/view/Codev/SecurityAlertExecuteCommandsWit=
hSearch
[ 2 ] CAN-2004-1037
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCAN-2004-1037
Availability
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200411-33.xml
Concerns?
=3D=3D=3D=3D=3D=3D=3D=3D=3D
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
[email protected] or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=3D=3D=3D=3D=3D=3D=3D
Copyright 2004 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.0
--nextPart3687616.ztohsqJkHV
Content-Type: application/pgp-signature
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.6 (GNU/Linux)
iD8DBQBBpE30zKC5hMHO6rkRAkRkAJ0VBaivABlAaxjPkY0kTVxKAIDXBACfUWXu
49J84r1kbO7ehqybxUj9Zb4=
=BBvv
-----END PGP SIGNATURE-----
--nextPart3687616.ztohsqJkHV--
