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Summary

Name: Nagios XI Network Monitor - OS Command Injection
Release Date: 30 November 2012
Reference: NGS00196
Discoverer: Daniel Compton <[email protected]>
Vendor: Nagios
Vendor Reference: 0000283
Systems Affected: Nagios XI Network Monitor 2011R1.9
Risk: High
Status: Published

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TimeLine

Discovered: 30 January 2012
Released: 31 January 2012
Approved: 31 January 2012
Reported: 31 January 2012
Fixed: 23 May 2012
Published: 30 November 2012

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Description

Nagios XI Network Monitor 2011R1.9 - OS Command Injection/Execution within the administrator/monitoring interface. This is a commertical product for monitoring severs and network monitoring equipment.

I. VULNERABILITY

Nagios XI Network Monitor 2011R1.9 suffers from OS command injection in several pages and parameters. This is exploitable as an authenticated user.

II. BACKGROUND

Nagios provide enterprise level network and server monitor software.

http://www.nagios.com/

III. DESCRIPTION

OS command injection has been found and exploited/confirmed within the software as an authenticated user. This is the latest version of Nagios XI.

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Technical Details

IV. PROOF OF CONCEPT

The following URL and parameters have been confirmed to all suffer from OS command injection.

/nagiosxi/includes/components/graphexplorer/visApi.php (GET parameters:
host, service, opt, end, start)

URL:

http://192.168.1.121/nagiosxi/includes/components/graphexplorer/visApi.php?type=stack&amp;host=localhost&#96;cat&#37;20/etc/passwd&#37;20&gt;&#37;20/tmp/passwd.txt&#96;&amp;service=Swap_Usage&amp;div=visContainer1566841654&amp;opt=days

Result: creates a new file with /etc/passwd contents.

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Fix Information

Resolved in SVN 1.3 of Graph Explorer

http://exchange.nagios.org/directory/Addons/Components/Graph-Explorer-Component/details

CHANGES:
1.3 05/23/2012

• Fixed shell vulnerabilities (reported by Daniel Compton from NGS Secure)

NCC Group Research
http://www.nccgroup.com/research

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