-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 iDefense Security Advisory 06.25.09 http://labs.idefense.com/intelligence/vulnerabilities/ Jun 25, 2009 I. BACKGROUND Motorola Inc.'s Timbuktu Pro is a remote control software that allows remote access to a computer's desktop. It is available for Mac OS X and Windows systems and provides integration with Skype and SSH. More information is available on Motorola's web site at the following URL. http://www.netopia.com/software/products/tb2/ II. DESCRIPTION Remote exploitation of a stack-based buffer overflow vulnerability in Motorola Inc.'s Timbuktu Pro could allow attackers to execute arbitrary code with SYSTEM privileges. Timbuktu fails to properly handle user-supplied data passed through a named pipe session. When the PlughNTCommand named pipe receives an overly large character string, a buffer overflow will occur resulting in arbitrary code execution. III. ANALYSIS Exploitation of this issue allows an attacker to execute arbitrary code with SYSTEM privileges. An attacker would need to locate a system running the Timbuktu Pro software. Upon finding a system that is running the vulnerable software, the attacker would check for the availability of the PlughNTCommand named pipe. If the named pipe is available, the attacker can connect and create a session without authenticating. The attacker can then send malformed data to the Timbuktu Pro process, resulting in arbitrary code execution with elevated privileges. IV. DETECTION iDefense has confirmed the existence of this vulnerability in Timbuktu Pro version 8.6.5. Previous versions may also be affected. V. WORKAROUND A named pipe filter can be applied to the registry. Named pipe filtering can be done in two ways dynamic filtering and white listing. Microsoft provides further details about how to implement this workaround. Named Pipe Filter workaround: http://support.microsoft.com/kb/925890 VI. VENDOR RESPONSE Motorola Inc. has released a patch which addresses this issue. For more information, consult their advisory at the following URLs: http://www.netopia.com/software/products/tb2/win/upgrade_version_8.html http://www.netopia.com/software/products/tb2/ VII. CVE INFORMATION The Common Vulnerabilities and Exposures (CVE) project has assigned the name CVE-2009-1394 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 07/09/2008 - Initial Contact 07/14/2008 - Initial vendor response 09/15/2008 - Vendor update received 03/12/2009 - Vendor status requested 03/12/2009 - Vendor update received 04/24/2009 - Vendor status requested 04/24/2009 - Tentative disclosure set to May 13 06/25/2009 - Coordinated Public Disclosure IX. CREDIT This vulnerability was reported to iDefense by Rubén Santamarta of reversemode.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 iD8DBQFKQ9DEbjs6HoxIfBkRAry2AKC6kW3ZxvEUeZKxgHCAwgVaeo0tXgCeOqnl ET0B1TVD81UMHNAWIsftJaw= =l3+M -----END PGP SIGNATURE-----
