__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN OPC Server Vulnerability [Takebishi 1231207] March 22, 2007 14:00 GMT Number R-182 ______________________________________________________________________________ PROBLEM: The OPC server contains a vulnerability that may allow a remote attacker to execute arbitrary code or cause a denial-of-servcie. PLATFORM: DeviceXPlorer MELSEC OPC Server DeviceXPlorer SYSMAC OPC Server DeviceXPlorer FA-M3 OPC Server DeviceXPlorer TOYOPUC OPC Server DeviceXPlorer HIDIC OPC Server DeviceXPlorer MODBUS OPC Server "V3.11 Build6 former" and "V3.12 Build1" and "V3.12 Build2" of the above products. NETxEIB OPC Server DAMAGE: May allow a remote attacker to execute arbitrary code or cause a denial-of-servcie. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. May allow a remote attacker to execute ASSESSMENT: arbitrary code or cause a denial-of-servcie. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/r-182.shtml ORIGINAL BULLETIN: http://www.faweb.net/us/opc/1231207.html ADDITIONAL LINKS: US-CERT Vulnerability Note VU#926551 http://www.kb.cert.org/vuls/id/926551 US-CERT Vulnerability Note VU#296593 http://www.kb.cert.org/vuls/id/296593 CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2007-1319 CVE-2007-1313 ______________________________________________________________________________ [***** Start Takebishi 1231207 *****] <Security Notice>The vulnerability of DeviceXPlorer OPC Server Mar. 16, 2007 TAKEBISHI Corporation SYMPTOM The vulnerabilitiy was pointed out regading DeviceXPlorer OPC Server. There are possibilities for a remote attacker to access aribitrary memory in the OPC Server via the OPCDA inteface, potentially leading to malicious code execution. (Currently the report of the affair has not yet come to us.) RESOLUTION We have might improved relevant software and have already released "DeviceXPlorer OPC Server V3.12 Build3." Upgrade to the latest version. If you could not replace relevant software by the latest version, even if you done, you should strictly configure the RPC settings. And, control the access permissions when OPC Server is connected from OPC Client applications through different network segment. AFFECTED PRODUCTS DeviceXPlorer MELSEC OPC Server DeviceXPlorer SYSMAC OPC Server DeviceXPlorer FA-M3 OPC Server DeviceXPlorer TOYOPUC OPC Server DeviceXPlorer HIDIC OPC Server DeviceXPlorer MODBUS OPC Server "V3.11 Build6 former" and "V3.12 Build1" and "V3.12 Build2" of the above products. SUPPORT TAKEBISHI Corporation 29 Mamedacho Nishikyogoku Ukyoku Kyoto 615-8501, JAPAN TEL +81-75-325-2171 / FAX +81-75-325-2273 Acceptance time 9:00-12:00 / 13:00-17:00 (JP Local Time Zone) Email fa-support@takebishi.co.jp Contact Person : Ryuji Takeuchi / Masatoshi Ike [***** End Takebishi 1231207 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Takebishi 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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