OpenX Backdoor Vulnerability

Number: AV13-028
Date: 8 August 2013

Purpose

The purpose of this advisory is to raise awareness of a recently discovered backdoor vulnerability in OpenX Source 2.8.10.

Assessment

CCIRC is aware of reports that the downloadable ZIP file for OpenX source version 2.8.10 was compromised and contained a backdoor. This backdoor could be remotely utilized by attackers to gain complete control over the affected system. Reports indicate that the compromised version of OpenX has been made available for download since November 2012.

OpenX has removed all affected files and has made available a new version, 2.8.11, for download. Please note that this vulnerability only applies to the free downloadable open source product and not OpenX Enterprise, OpenX Market or OpenX Lift

Affected Versions:
openx-2.8.10.zip
openx-2.8.10.tgz
openx-2.8.10.bz2

Detailed instructions on detection and mitigation have been provided by OpenX in their security advisory located here. http://forum.openx.org/index.php?showtopic=503521628

Suggested action

CCIRC recommends that system administrators identify their affected assets and potential interdependencies with their organization's critical services and follow their patch management process accordingly.

References:
http://forum.openx.org/index.php?showtopic=503521628
http://isc.sans.edu/diary/OpenX+Ad+Server+Backdoor/16303

Note to Readers

In support of Public Safety's mission to build a safe and resilient Canada, CCIRC's mandate is to help ensure the security and resilience of the vital non-federal government cyber systems that underpin Canada's national security, public safety and economic prosperity. As Canada's computer security incident response team, CCIRC is Canada's national coordination centre for the prevention and mitigation of, preparedness for, response to, and recovery from cyber incidents on non-federal government systems. It does this by providing authoritative advice and support, and coordinating information sharing and incident response.

Please note, CCIRC PGP key has recently been updated.
http://www.publicsafety.gc.ca/cnt/ntnl-scrt/cbr-scrt/_fl/CCIRCPublicPGPKey.txt

For general information, please contact Public Safety Canada's Public Affairs division at:

Telephone: 613-944-4875 or 1-800-830-3118
Fax: 613-998-9589
E-mail: ps.communications-communications.sp@canada.ca

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