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Eaton MGE OPS Network Shutdown Module - authentication bypass vuln and remote code exec



n.runs-SA-2008.009 - Eaton MGE OPS Network Shutdown Module - authentication bypass vulnerability and remote code execution
n.runs-SA-2008.009 - Eaton MGE OPS Network Shutdown Module - authentication bypass vulnerability and remote code execution



n.runs AG
http://www.nruns.com/ security(at)nruns.com 
n.runs-SA-2008.009                                       27-October-2008
____________________________________________________________________________

Vendor:             Eaton MGE office protection systems
Affected Products:  Network Shutdown Module version 3.10
Vulnerability:      authentication bypass vulnerability and remote code
                     execution
Risk:               High
____________________________________________________________________________

Vendor communication:


   2008/08/13    initial notification of EATON MGE Office Protection
                 Systems (MGEOPS)
   2008/08/20    second notification of MGEOPS
   2008/08/20    MGEOPS confirmation of receiving information
   2008/08/25    receiving patch proposal from MGEOPS
   2008/08/29    confirmation of proper patch, asking of release date
   2008/09/02    awaiting feedback regarding release date of the patch
   2008/09/18    patch and new version undergoing QA process of MGEOPS
                 still no release date known
   2008/10/07    another request regarding the release date
   2008/10/21    MGEOPS informs n.runs AG about release of the new
                 software version
   2008/10/27    n.runs AG releases this advisory
____________________________________________________________________________

Overview:
--------
EATON MGE Office Protection Systems designs and manufactures secured
power products and solutions for enterprises, small business and homes.
The Network Shutdown Module continuously wait for information from the
Management Proxy or Management Card connected to the EATON UPS and warns
administrators and users if AC power fails and proceeds with graceful
system shutdown before the end of battery backup power is reached.

Description:
--------
Remote exploitation of an authentication bypass vulnerability could
allow an attacker to execute arbitrary code.

In detail, the following flaw was determined:

- Custom actions can be added to the MGE frontend without authentication
   required (pane_actionbutton.php)
- Actions can be executed (tested) without authentication required
   (exec_action.php)


Impact:
--------
This problem can lead to a remote file execution vulnerability. It can
allow an attacker to add and execute custom actions. The commands to be
executed are included within the added action.

The vulnerability is present in MGE Network Shutdown Module software
versions prior 3.10 build 13.

Solution
--------
EATON MGE Office Protection Systems has issued an update to correct this
vulnerability. A new version of the software (version 3.20) can be found at:
http://download.mgeops.com/explore/eng/network/net_sol.htm 
________________________________________________________________________

Credits:
Bug found by Jan Rossmann and Jan Wagner of n.runs AG.
________________________________________________________________________

References:
This Advisory and Upcoming Advisories:
http://www.nruns.com/security_advisory.php 

Subscribe to the n.runs newsletter by signing up to:
http://www.nruns.com/newsletter_en.php 
________________________________________________________________________

About n.runs:
n.runs AG is a vendor-independent consulting company specialising in the
areas of: IT Infrastructure, IT Security and IT Business Consulting. In
2007, n.runs expanded its core business area, which until then had  been
project based consulting, to include the development of high-end
security solutions.
Application Protection System - Anti Virus (aps-AV) is the first
high-end security solution that n.runs is bringing to the market.

Copyright Notice:
Unaltered electronic reproduction of this advisory is permitted. For all
other reproduction or publication, in printing or otherwise, contact
security@nruns.com for permission. Use of the advisory constitutes 
acceptance for use in an "as is" condition. All warranties are excluded.
In no event shall n.runs be liable for any damages whatsoever including
direct, indirect, incidental, consequential, loss of business profits or
special damages, even if n.runs has been advised of the possibility of
such damages.

Copyright 2008 n.runs AG. All rights reserved. Terms of use apply.




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