__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN IBM Director Vulnerability [US-CERT Vulnerability Note VU#512193] November 26, 2007 19:00 GMT Number S-061 ______________________________________________________________________________ PROBLEM: IBM Director Systems, specifically CIM Server, contains a denial-of-service vulnerability that can allow a remote, unauthenticated attacker to render Director inoperative. PLATFORM: IBM Director Systems 5.20.1 and earlier for Windows and Linux DAMAGE: Contains a denial-of-service vulnerability that can allow a remote, unauthenticated attacker to render Director inoperative. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is LOW. Contains a denial-of-service vulnerability ASSESSMENT: that can allow a remote, unauthenticated attacker to render Director inoperative. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/s-061.shtml ORIGINAL BULLETIN: http://www.kb.cert.org/vuls/id/512193 CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2007-5612 ______________________________________________________________________________ [***** Start US-CERT Vulnerability Note VU#512193 *****] Vulnerability Note VU#512193 IBM Director fails to properly time-out connection requests from clients Overview IBM Director Systems, specifically CIM Server, contains a denial-of-service vulnerability that can allow a remote, unauthenticated attacker to render Director inoperative. I. Description IBM Director is a suite of system management tools. When a rogue connection request is made to IBM Director Systems, specifically the CIM Server, a thread is created that listens on a port, waiting for a specific response from the client. If the client does not send the expected response, the thread remains in memory listening, indicating a high CPU utilization until the client connects to it. If multiple rogue clients connect simultaneously, the finite number of connections can be exhausted causing server to crash. Versions 5.20.1 and earlier for Windows and Linux are affected. II. Impact IBM Director Systems will become inaccessible for management. III. Solution Apply an update Download and Apply the patch for Windows and Linux systems here: https://www14.software.ibm.com/webapp/iwm/web/preLogin.do?source=dmp Block or restrict access Employ other protection mechanisms that will restrict access to the Director Systems by installing firewalls, defining filters, or by using reverse proxies. Systems Affected Vendor Status Date Updated IBM eServer Vulnerable 20-Nov-2007 References https://www14.software.ibm.com/webapp/iwm/web/preLogin.do?source=dmp http://www-03.ibm.com/systems/management/director/ Credit Thanks to IBM for reporting this vulnerability, who in turn credit Juniper Networks. This document was written by Will Dormann. Other Information Date Public 11/20/2007 Date First Published 11/20/2007 04:16:14 PM Date Last Updated 11/20/2007 CERT Advisory CVE Name CVE-2007-5612 Metric 0.91 Document Revision 5 [***** End US-CERT Vulnerability Note VU#512193 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of US-CERT 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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