-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 iDefense Security Advisory 04.28.09 http://labs.idefense.com/intelligence/vulnerabilities/ Apr 28, 2009 I. BACKGROUND SmartSockets is a message-passing framework used to transport messages over disparate channels. The RTserver is the server component of the framework. For more information, see the vendor's site found at the following link. http://www.tibco.com/software/messaging/smartsockets/default.jsp II. DESCRIPTION Remote exploitation of a stack based buffer overflow vulnerability in TIBCO Software Inc.'s SmartSockets RTserver could allow an attacker to execute arbitrary code with the privileges of the affected service. The vulnerability occurs when parsing requests on the UDP interface of the RTserver. III. ANALYSIS Exploitation of this vulnerability results in the execution of arbitrary code with the privileges of the affected service, usually SYSTEM. No authentication is required to exploit this vulnerability. Since the vulnerability is a stack based buffer overflow, and there are no stack cookies, reliable exploitation is trivial. IV. DETECTION iDefense has confirmed the existence of this vulnerability in the RTserver version 4.0.10.1. Previous versions may also be affected. The SmartSockets framework is resold to various 3rd party vendors, and in this case iDefense used the version provided with Computer Associates Enterprise Communicator. V. WORKAROUND TIBCO has identified the following workarounds: * Disable the rtserver UDP port if it has been enabled in the rtserver configuration file. * Utilize a firewall to restrict access to the rtserver. * Use a user with restricted privileges to invoke the rtserver or application. * On Unix systems, invoke the server or application from a chroot environment. This will restrict the ability to access or modify information in the event of a successful exploit. VI. VENDOR RESPONSE TIBCO has released a patch which addresses this issue. For more information, consult their advisory at the following URL: http://www.tibco.com/services/support/advisories/default.jsp VII. CVE INFORMATION The Common Vulnerabilities and Exposures (CVE) project has assigned the name CVE-2009-1291 to this issue. This is a candidate for inclusion in the CVE list (http://cve.mitre.org/), which standardizes names for security problems. VIII. DISCLOSURE TIMELINE 03/18/2009 - Initial Contact 03/18/2009 - PoC Requested 03/25/2009 - PoC Sent 03/30/2009 - Vendor PoC ACK 04/07/2009 - Vendor Validated 04/10/2009 - Coordination 04/14/2009 - CVE from Vendor 04/14/2009 - Coordination 04/28/2009 - Coordinated Public Disclosure IX. CREDIT This vulnerability was reported to iDefense by Stephen Fewer of Harmony Security (www.harmonysecurity.com) Get paid for vulnerability research http://labs.idefense.com/methodology/vulnerability/vcp.php Free tools, research and upcoming events http://labs.idefense.com/ X. LEGAL NOTICES Copyright © 2009 iDefense, Inc. Permission is granted for the redistribution of this alert electronically. It may not be edited in any way without the express written consent of iDefense. If you wish to reprint the whole or any part of this alert in any other medium other than electronically, please e-mail customerservice@xxxxxxxxxxxx for permission. 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. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFJ916xbjs6HoxIfBkRAm0PAKDFJcMtVqFtg289NxxAknOCmeGsJgCgzhJF 2d1XPyeQB4JAEZcdlDqD8To= =z18R -----END PGP SIGNATURE-----
