__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN LiveData Protocol Server Vulnerabitily [iDefense Public Advisory : 05.02.07] May 4, 2007 19:00 GMT Number R-226 ______________________________________________________________________________ PROBLEM: Remote exploitation of a heap overflow vulnerability within LiveData's Protocol Server could allow an attacker to cause the service to crash or protentially execute arbitrary code with SYSTEM privileges. PLATFORM: LiveData Protocol Server version 5.00.045 DAMAGE: Could allow an attacker to cause the service to crash or potentially execute arbitrary code with SYSTEM privileges. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is LOW. Could allow an attacker to cause the service ASSESSMENT: to crash or potentially execute arbitrary code with SYSTEM privileges. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/r-226.shtml ORIGINAL BULLETIN: http://labs.idefense.com/intelligence/vulnerabilities/ display.php?id=523 ______________________________________________________________________________ [***** Start iDefense Public Advisory : 05.02.07 *****] PUBLIC ADVISORY: 05.02.07PUBLIC ADVISORY: 05.02.07PUBLIC ADVISORY: 05.02.07 Home // Current Intelligence // Vulnerability Advisories // Public Advisory: 05.02.07 LiveData Protocol Server Heap Overflow Vulnerability I. BACKGROUND LiveData is a provider of real-time data acquisition and processing software. LiveData Protocol Server is used in SCADA environments to record and transmit data to other control points in process control networks. The LiveData server includes a HTTP server that offers a SOAP interface to the product. More information is available at the vendor's web site at the following URL. http://www.livedata.com/ II. DESCRIPTION Remote exploitation of a heap overflow vulnerability within LiveData's Protocol Server could allow an attacker to cause the service to crash or potentially execute arbitrary code with SYSTEM privileges. The vulnerability specifically exists due to the the handling of requests for WSDL files. By supplying a specially crafted request to the service on port 8080, an attacker is able to supply a negative length value to a strncpy call. This value is interpreted by strncpy as a very large positive value. As a result, a memory access violation occurs when attempting to write data past the end of the heap memory segment. III. ANALYSIS Exploitation allows an attacker to crash the LiveDataServer service or potentially execute arbitrary code. Arbitrary code execution would depend on overwriting heap data that is used within a different thread. A race condition would have to exist where the flow of execution would be diverted before the application terminated from the memory access violation. IV. DETECTION iDefense has confirmed the existence of this vulnerability in LiveData Protocol Server version 5.00.045 which was the current release as of September 13th 2006. V. WORKAROUND In order to mitigate potential exploitation, iDefense recommends blocking access to port 8080 by using a firewall. VI. VENDOR RESPONSE LiveData has addressed this vulnerability with updated versions of their software. The following versions are reported to be fixed. RTI update 500062 Protocol Server update 500062 Maintenance Server update 500062 VII. CVE INFORMATION A Mitre Corp. Common Vulnerabilities and Exposures (CVE) number has not been assigned yet. VIII. DISCLOSURE TIMELINE 01/02/2007 Initial vendor notification 01/03/2007 Initial vendor response 05/02/2007 Coordinated public disclosure IX. CREDIT The discoverer of this vulnerability wishes to remain anonymous. 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 © 2007 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 customer service 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. // Current Intelligence Intelligence Deliverables Research Papers Vulnerability Advisories Malicious Code Advisories [***** End iDefense Public Advisory : 05.02.07 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of iDefense for the information contained in this bulletin. _______________________________________________________________________________ CIAC, the Computer Incident Advisory Capability, is the computer security incident response team for the U.S. Department of Energy (DOE) and the emergency backup response team for the National Institutes of Health (NIH). CIAC is located at the Lawrence Livermore National Laboratory in Livermore, California. CIAC is also a founding member of FIRST, the Forum of Incident Response and Security Teams, a global organization established to foster cooperation and coordination among computer security teams worldwide. CIAC services are available to DOE, DOE contractors, and the NIH. CIAC can be contacted at: Voice: +1 925-422-8193 (7x24) FAX: +1 925-423-8002 STU-III: +1 925-423-2604 E-mail: ciac@ciac.org Previous CIAC notices, anti-virus software, and other information are available from the CIAC Computer Security Archive. World Wide Web: http://www.ciac.org/ Anonymous FTP: ftp.ciac.org PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing communities receive CIAC bulletins. If you are not part of these communities, please contact your agency's response team to report incidents. Your agency's team will coordinate with CIAC. The Forum of Incident Response and Security Teams (FIRST) is a world-wide organization. A list of FIRST member organizations and their constituencies can be obtained via WWW at http://www.first.org/. This document was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor the University of California nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation or favoring by the United States Government or the University of California. 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