__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN RealPlayer / RealOne Player Buffer Overrun Vulnerabilities [RealNetworks, 02/06/04] February 6, 2004 21:00 GMT Number O-075 ______________________________________________________________________________ PROBLEM: Buffer overrun vulnerabilities have been identified on Real Players and RealOne Players. These are popular programs installed on most operating systems for streaming video and audio feeds over the Internet. PLATFORM: RealOne Player and RealPlayer 8 (all language versions) RealOne Player v2 for Windows only (all languages) RealOne Enterprise Desktop or RealPlayer Enterprise (all versions) RealPlayer 10 Beta (English only) DAMAGE: By crafting malformed .RP, .RT, .RAM, .RMP & .SMIL files it is possible to cause a system to download and run arbitrary code or cause a buffer overrun error. SOLUTION: Install the vendor's updates. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. A remote attacker could execute arbitrary ASSESSMENT: code running in the context of the logged on user. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/o-075.shtml ORIGINAL BULLETIN: http://service.real.com/help/faq/security/040123_player/EN/ ______________________________________________________________________________ [***** Start RealNetworks, 02/06/04 *****] RealNetworks, Inc. Releases Update to Address Security Vulnerabilities. Updated February 4, 2004 RealNetworks, Inc. has recently been made aware of security vulnerabilities that could potentially allow an attacker to run arbitrary code on a user's machine. The specific exploits were: Exploit 1: To operate remote Javascript from the domain of the URL opened by a SMIL file or other file. Exploit 2: To fashion RMP files which allow an attacker to download and execute arbitrary code on a user's machine. Exploit 3: To fashion media files to create “Buffer Overrun” errors. While we have not received reports of anyone actually being attacked with this exploit, all security vulnerabilities are taken very seriously by RealNetworks. RealNetworks has found and fixed the problem. Affected Software: "Exploit 1" affects RealOne Player, RealOne Player v2 for Windows only (all languages), RealPlayer 10 Beta (English only) and RealOne Enterprise Desktop or RealPlayer Enterprise (all versions, standalone and as configured by the RealOne Desktop Manager or RealPlayer Enterprise Manager). "Exploit 2" affects RealOne Player, RealOne Player v2 (all language versions, all platforms), and RealOne Enterprise Desktop or RealPlayer Enterprise (all versions, standalone and as configured by the RealOne Desktop Manager or RealPlayer Enterprise Manager). "Exploit 3" affects RealOne Player and RealPlayer 8 (all language versions). Workaround: To ensure that your Player is protected, we recommend installing the updates available. UPDATES Windows Players: English versions of and RealOne Player v2, RealOne Player and RealPlayer 8 can access the latest Gold player by clicking here. RealPlayer 10 Beta customers and those with localized versions of RealOne Player and RealOne Player v2, please use the following steps to update your Player: In the Tools menu select Check for Update. Select the box next to the "RealPlayer 10" (English) or “RealOne Player” (localized) component. Click the Install button to download and install the update. Localized RealPlayer 8 (version 6.0.9.584): Go to the Help menu. Select "Check for Update". Select the box next to the “RealOne Player” component. Click the Install button to download and install the update. RealPlayer Enterprise Solution: Please contact your Platinum representative or RealNetworks Customer Support for an update. Acknowledgements: RealNetworks would also like to acknowledge Jouko Pynnönen and Mark Litchfield, as well as other contributors for bringing these exploits to our attention and to all those who subsequently worked with us to correct the vulnerabilities. Warranty: While RealNetworks endeavors to provide you with the highest quality products and services, we cannot guarantee and do not warrant that the operation of any RealNetworks product will be error-free, uninterrupted or secure. See your original license agreement for details of our limited warranty or warranty disclaimer. [***** End RealNetworks, 02/06/04 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of RealNetworks, Inc. and NGSSoftware 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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