[DSECRG-08-020] Alcatel OmniPCX Office Remote Comand Execution

Digital Security Research Group [DSecRG] Advisory #DSECRG-08-020

Application: Alcatel OmniPCX Office
Versions Affected: Alcatel OmniPCX Office since release 210/061.1
Vendor URL: http://alcatel.com
Bugs: Remote command execution
Exploits: YES
Risk: High
CVSS Score: 7.31
CVE-number: 2008-1331
Reported: 31.01.2008
Vendor response: 01.02.2008
Customers informed: 07.03.2008
Published on PSIRT: 01.04.2008
Date of Public Advisory: 21.05.2008
Author: Digital Security Research Group [DSecRG] (research [at] dsec [dot] ru)

Introduction

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The OmniPCX Enterprise is an integrated communications solution for
medium-sized businesses and large corporations. It combines the best of
the old (legacy TDM phone connectivity) with the new (a native IP
platform and support for Session Initiation Protocol, or SIP) to provide
an effective and complete communications solution for cost-conscious
companies on the cutting edge.

(from the vendor's homepage)

Description

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Alcatel OmniPCX Office Web Interface has critical security vulnerability Remote command execution

The risk of this vulnerability is high. Any user which has access to the web interface of the OmniPCX Enterprise
solution will

be able to execute arbitrary commands on the server with the permissions of the webserver.

Details

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Remote command execution vulnerability found in script /cgi-data/FastJSData.cgi in parameter name id2
Variable id2 not being filtered when passed to the shell. Thus, arbitrary commands can be executed on
the server by adding them to the user variable, separated by semicolons.

You can find more details on this advisory on vendors website http://www1.alcatel-lucent.com/psirt/statements.htm
under reference 2008001

Example:

http://[server]/cgi-data/FastJSData.cgi?id1=sh2kerr&id2=91|cat%20/etc/passwd

Fix Information

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Alcatel was altered to fix this flaw on 01.04.2008. Updated version can be downloaded here:

http://www1.alcatel-lucent.com/enterprise/en/products/ip_telephony/omnipcxenterprise/index.html

About

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Digital Security is leading IT security company in Russia, providing information security consulting, audit and
penetration

testing services, risk analysis and ISMS-related services and certification for ISO/IEC 27001:2005 and PCI DSS
standards.

Digital Security Research Group focuses on web application and database security problems with vulnerability reports,
advisories

and whitepapers posted regularly on our website.

Contact: research [at] dsec [dot] ru
http://www.dsec.ru (in Russian)