__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN NetScreen IVE Vulnerability may lead to Remote Script Execution [NetScreen Advisory 58412] March 12, 2004 19:00 GMT Number O-098 ______________________________________________________________________________ PROBLEM: NetScreen is a security appliance that combines firewall, VPN, and traffic management functionality on a single dedicated hardware platform. A cross-site scripting vulnerability caused by a bug in the delhomepage.cgi CGI binary row parameter has been identified. PLATFORM: NetScreen IVE, versions 3.0 to 3.3.1 NetScreen Technologies, Inc. NetScreen-SA 5000 Series NetScreen Technologies, Inc. ScreenOS 3.3 Patch1 build 4797 DAMAGE: A remote authenticated user could exploit this vulnerability to gain unauthorized root privileges. Theft of user credentials and remote script execution are possible. SOLUTION: Apply available updates as described below. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. This can only be exploited by a legitimate ASSESSMENT: user, so in the worst case, a remote authenticated user could elevate privileges to gain root access. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/o-098.shtml ORIGINAL BULLETIN: NetScreen Advisory 58412 http://www.netscreen.com/services/security/alerts/ive_xss.txt ______________________________________________________________________________ [***** Start NetScreen Advisory 58412 *****] Title: NetScreen Advisory 58412 Date: 02 March 2004 Impact: Possible theft of user credentials and remote script execution. Affected Products: NetScreen IVE running version 3.0 to 3.3.1. Max Risk: Low Summary: A cross-site scripting (XSS) vulnerability was discovered during an external security audit of release 3.3 Patch 1 of the IVE. This vulnerability affects customers using all versions of the IVE Platform since 3.0. At this time there have been no reports of customers compromised due to this IVE vulnerability. Details: There exists a cross-site scripting bug in 'row' parameter of the 'delhomepage.cgi' URL. This issue may result in the theft of credentials such as session cookies and allow hostile client-side scripts to run with unintended access privileges. The scope of the problem is limited because only authenticated users can access the affected URL. NetScreen has security patches available to address this vulnerability. We highly recommend that you upgrade your IVE to a patch corresponding to your currently installed release. Recommended Actions: Install the appropriate patch corresponding to your currently installed release. Getting Fixed Software for NetScreen IVE Products: NetScreen is offering free fixes for IVE versions 3.2.1 through 3.3.1 for all customers, regardless of service contract status. The following security releases which contain the fix for this issue are available on the NetScreen support site for all customers. Updates available immediately: - - 3.2.1 Patch 1-S2 (Build 5633) - - 3.3-S1 (Build 5607) - - 3.3 Patch 1-S1 (Build 5605) - - 3.3.1-S1 (Build 5651) Customers may download the above patches on the NetScreen IVE support website at https://support.neoteris.com. Customers with further questions may contact the NetScreen IVE Technical Assistance Center at 408-543-2991 (Option 2) or send email to help@support.neoteris.com. If you wish to verify the validity of this Security Advisory, the public PGP key can be accessed at http://www.netscreen.com/services/security/ Thanks to Mark Lachniet of Analysts International [lachniet -=at=- analysts.com] for reporting this issue and working with us. [***** End NetScreen Advisory 58412 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of NetScreen 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. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or the University of California, and shall not be used for advertising or product endorsement purposes. 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