GLSA 200502-12: Webmin: Information leak in Gentoo binary
Posted on: 02/11/2005 06:46 PM

A Webmin security update is available for Gentoo Linux

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Gentoo Linux Security Advisory GLSA 200502-12
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http://security.gentoo.org/
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Severity: Normal
Title: Webmin: Information leak in Gentoo binary package
Date: February 11, 2005
Bugs: #77731
ID: 200502-12

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Synopsis
=======

Portage-built Webmin binary packages accidentally include a file containing the local encrypted root password.

Background
=========

Webmin is a web-based system administration console allowing an administrator to easily configure servers and other features. Using the 'buildpkg' FEATURE, or the -b/-B emerge options, Portage can build reusable binary packages for any of the packages available through the Portage tree.

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

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Package / Vulnerable / Unaffected
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1 app-admin/webmin < 1.170-r3 >= 1.170-r3

Description
==========

Tavis Ormandy of the Gentoo Linux Security Audit Team discovered that the Webmin ebuild contains a design flaw. It imports the encrypted local root password into the miniserv.users file before building binary packages that include this file.

Impact
=====

A remote attacker could retrieve Portage-built Webmin binary packages and recover the encrypted root password from the build host.

Workaround
=========

Users who never built or shared a Webmin binary package are unaffected by this.

Resolution
=========

Webmin users should delete any old shared Webmin binary package as soon as possible. They should also consider their buildhost root password potentially exposed and follow proper audit procedures.

If you plan to build binary packages, you should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-admin/webmin-1.170-r3"

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

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

http://security.gentoo.org/glsa/glsa-200502-12.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@gentoo.org 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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