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Gentoo Linux Security Advisory                           GLSA 200707-05
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                                            http://security.gentoo.org/
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  Severity: Low
     Title: Webmin, Usermin: Cross-site scripting vulnerabilities
      Date: July 05, 2007
      Bugs: #181385
        ID: 200707-05

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Synopsis
========

Webmin and Usermin are vulnerable to cross-site scripting
vulnerabilities (XSS).

Background
==========

Webmin is a web-based administrative interface for Unix-like systems.
Usermin is a simplified version of Webmin designed for use by normal
users rather than system administrators.

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

    -------------------------------------------------------------------
     Package            /  Vulnerable  /                    Unaffected
    -------------------------------------------------------------------
  1  app-admin/webmin        < 1.350                          >= 1.350
  2  app-admin/usermin       < 1.280                          >= 1.280
    -------------------------------------------------------------------
     2 affected packages on all of their supported architectures.
    -------------------------------------------------------------------

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

The pam_login.cgi file does not properly sanitize user input before
sending it back as output to the user.

Impact
======

An unauthenticated attacker could entice a user to browse a specially
crafted URL, allowing for the execution of script code in the context
of the user's browser and for the theft of browser credentials. This
may permit the attacker to login to Webmin or Usermin with the user's
permissions.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Webmin users should update to the latest stable version:

    # emerge --sync
    # emerge --ask --verbose --oneshot ">=app-admin/webmin-1.350"

All Usermin users should update to the latest stable version:

    # emerge --sync
    # emerge --ask --verbose --oneshot ">=app-admin/usermin-1.280"

References
==========

  [ 1 ] CVE-2007-3156
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3156

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

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

  http://security.gentoo.org/glsa/glsa-200707-05.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 2007 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/2.5