-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Symantec Consulting Services www.symantec.com Security Advisory Advisory ID: SYMSA-2007-008 Advisory Title: Autodesk Backburner 3.0.2 : System Backdoor Author: Dave Hartley and Stephen Kapp dave_hartley@symantec.com Release Date: 12-09-2007 Application: Autodesk Backburner 3.0.2 Platform: Windows Severity: Remotely exploitable Vendor status: Verified by vendor - Workaround Suggested - No Patch CVE Number: CVE-2007-4749 Reference: http://www.securityfocus.com/bid/25590 Overview: Autodesk Backburner is a facility wide network render manager for 3ds Max, Combustion, Inferno, Flame, Flint, Fire, Smoke, and Lustre. Backburner provides a flexible, centralized solution for tracking and prioritizing background render requests sent by multiple client applications before sending them to available render nodes for processing. http://usa.autodesk.com/ Details: The Autodesk Backburner software remote job queueing tool allows users to submit jobs consisting of operating system commands that will be executed by the Backburner Manager service on the render server(s) without authentication. The commands are executed with the privileges of the user account that started the Manager service on the remote server. Backburner is designed to be used by administrators on a closed network, the applications that use Backburner require partial administrative permissions therfore the service runs with administrative privileges. A malicous attacker could leverage this functionality to gain remote administrative control over the host running the Backburner software The default behavior for the tool is to search for available servers on the network. The Backburner Manager Server Service listens by default on tcp port 3234 for incoming jobs and responds to broadcast discover requests by default on udp port 3234. The software can be downloaded for free from the vendors site: http://usa.autodesk.com/adsk/servlet/home?siteID=123112&id=129446 Vendor Response: "The backburner package is intended to be used in a closed network i.e. one that does not have routing between its hosts and the rest of the world. If a customer decides that he cannot do without Internet connectivity, he should take the appropriate measures to limit traffic on its subnet so that machines make use of a proxy to access the Internet, to the very least. The cmdjob utility is well documented in the Backburner 2007.1 user�s guide. As well, a notice documents the security issue it could represent for hosts using it on page 43 of the same guide. By default, the cmdjob utility is installed on the system. A user can remove the cmdjob utility from his system if he does not wish to submit jobs automatically. This should not affect the rest of the Autodesk software infrastructure he already is using." Recommendation: Remove the cmdjob functionality. Alternatively, limit network access to the specific ports to only those hosts that require it. Common Vulnerabilities and Exposures (CVE) Information: The Common Vulnerabilities and Exposures (CVE) project has assigned the following names to these issues. These are candidates for inclusion in the CVE list (http://cve.mitre.org), which standardizes names for security problems. CVE-2007-4749 - -------Symantec Consulting Services Advisory Information------- For questions about this advisory, or to report an error: research@symantec.com For details on Symantec's Vulnerability Reporting Policy: http://www.symantec.com/research/Symantec-Responsible-Disclosure.pdf Consulting Services Advisory Archive: http://www.symantec.com/research/ Consulting Services Advisory PGP Key: http://www.symantec.com/research/Symantec_Consulting_Services_Advisories_PGP.asc - -------------Symantec Product Advisory Information------------- To Report a Security Vulnerability in a Symantec Product: secure@symantec.com For general information on Symantec's Product Vulnerability reporting and response: http://www.symantec.com/security/ Symantec Product Advisory Archive: http://www.symantec.com/avcenter/security/SymantecAdvisories.html Symantec Product Advisory PGP Key: http://www.symantec.com/security/Symantec-Vulnerability-Management-Key.asc - --------------------------------------------------------------- Copyright (c) 2007 by Symantec Corp. Permission to redistribute this alert electronically is granted as long as it is not edited in any way unless authorized by Symantec Consulting Services. Reprinting the whole or part of this alert in any medium other than electronically requires permission from cs_advisories@symantec.com. Disclaimer The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information. Symantec, Symantec products, and Symantec Consulting Services are registered trademarks of Symantec Corp. and/or affiliated companies in the United States and other countries. All other registered and unregistered trademarks represented in this document are the sole property of their respective companies/owners. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (MingW32) iD8DBQFG5e/guk7IIFI45IARAtHbAKDmWBqlvJKSwA8s8B0XleVEtZDpswCg4501 igvjKLb8piI5fjiLYLaw9o0= =cqJu -----END PGP SIGNATURE-----