BugTraq
[ GLSA 200506-13 ] webapp-config: Insecure temporary file handling Jun 17 2005 01:55PM
Sune Kloppenborg Jeppesen (jaervosz gentoo org)
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Gentoo Linux Security Advisory GLSA 200506-13
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http://security.gentoo.org/
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Severity: Normal
Title: webapp-config: Insecure temporary file handling
Date: June 17, 2005
Bugs: #91785, #88831
ID: 200506-13

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Synopsis
========

The webapp-config utility insecurely creates temporary files in a world
writable directory, potentially allowing the execution of arbitrary
commands.

Background
==========

webapp-config is a Gentoo Linux utility to help manage the installation
of web-based applications.

Affected packages
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-www/webapp-config < 1.11 >= 1.11

Description
===========

Eric Romang discovered webapp-config uses a predictable temporary
filename while processing certain options, resulting in a race
condition.

Impact
======

Successful exploitation of the race condition would allow an attacker
to disrupt the operation of webapp-config, or execute arbitrary shell
commands with the privileges of the user running webapp-config. A local
attacker could use a symlink attack to create or overwrite files with
the permissions of the user running webapp-config.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All webapp-config users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-www/webapp-config-1.11"

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200506-13.xml

Concerns?
=========

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
security (at) gentoo (dot) org [email concealed] or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2005 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

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