===================================================================== CERT-Renater Note d'Information No. 2006/VULN285 _____________________________________________________________________ DATE : 29/05/2006 HARDWARE PLATFORM(S) : / OPERATING SYSTEM(S) : Systems running Symantec Client Security, Symantec Antivirus Corporate Edition. ====================================================================== SYM06-010 May 25, 2006 Symantec Client Security and Symantec AntiVirus Elevation of Privilege Revision History May 26, 2006 - Updated Products Affected section and other details May 27, 2006 - Updated Products Affected section with update info - Updated Unaffected Products section Impact High Remote Yes Local Yes Authentication Required No Exploit publicly available No Overview A stack overflow in Symantec Client Security and Symantec AntiVirus Corporate Edition could potentially allow a remote or local attacker to execute code on the affected machine. Products Affected Product Version Build Solution Symantec Client Security 3.1 3.1.0.394 3.1.0.396 3.1 3.1.0.400 3.1.0.401 3.0 3.0.2.2010 3.0.2.2011 3.0 3.0.2.2020 3.0.2.2021 Symantec Antivirus Corporate Edition 10.1 10.1.0.394 3.1.0.396 10.1 10.1.0.400 10.1.0.401 10.0 10.0.2.2010 10.0.2.2011 10.0 10.0.2.2020 10.0.2.2021 http://www.symantec.com/techsupp/enterprise/select_product_updates.html Note: All builds listed above are English versions only. Localized builds are pending. Unaffected Products Product Version Norton Product line No products in the Norton product line are affected Symantec AntiVirus Corporate Edition 8.0, 8.1, 9.0 all builds Symantec Client Security 1.0, 1.1, 2.0, all builds Details Symantec was notified that Symantec Client Security and Symantec AntiVirus Corporate Edition are susceptible to a potential stack overflow. Exploiting this overflow successfully could potentially cause a system crash, or allow a remote or local attacker to execute arbitrary code with System level rights on the affected system. Symantec Response This advisory will be updated when product updates to address this issue are available. Upgrade Information Available updates for English language versions are listed in the table above. Localized builds for other languages are pending. Mitigation Symantec Security Response has released IPS signatures to detect attempts to exploit this issue. Symantec Network Security Appliance 7100 signatures, SU 46, are available via LiveUpdate. Symantec Gateway Security 3.0 signatures, SU 19, are available via LiveUpdate. Symantec Client Security 2.0 and 3.0 signatures, SU 22, are available for update via LiveUpdate. Symantec recommends customers immediately apply the latest Security Update to protect against potential related attacks. To help reduce the risks associated with this vulnerability Symantec recommends the following best practices: * Restrict access to administration or management systems to privileged users only, with additional restricted access to the physical host system(s) if possible. * Keep all operating systems and applications updated with the latest vendor patches. * Follow a multi-layered approach to security. Run both firewall and antivirus applications, at a minimum to provide multiple points of detection and protection to both inbound and outbound threats. * Be cautious visiting unknown or untrusted websites or following unknown URL links. * Do not open attachments or executables from unknown sources or that you didn't request or were unaware of. Always err on the side of caution. Even if the sender is known, the source address may be spoofed. Note Symantec is not aware of any customers impacted by this vulnerability, or of any exploits of this vulnerability. CVE This issue is a candidate for inclusion in the Common Vulnerabilities and Exposures (CVE) list (http://cve.mitre.org), which standardizes names for security problems. A CVE identifier will be requested for this issue. Credit Symantec would like to thank eEye Digital Security (http://www.eeye.com) for reporting this issue, and working with us on the resolution. Symantec takes the security and proper functionality of its products very seriously. As founding members of the Organization for Internet Safety (OISafety), Symantec follows the principles of responsible disclosure. Symantec also subscribes to the vulnerability guidelines outlined by the National Infrastructure Advisory Council (NIAC). Please contact secure@symantec.com if you feel you have discovered a potential or actual security issue with a Symantec product. A Symantec Product Security team member will contact you regarding your submission. Symantec has developed a Product Vulnerability Handling Process document outlining the process we follow in addressing suspected vulnerabilities in our products. We support responsible disclosure of all vulnerability information in a timely manner to protect Symantec customers and the security of the Internet as a result of vulnerability. This document is available from the location provided below. Symantec strongly recommends using encrypted email for reporting vulnerability information to secure@symantec.com. The Symantec Product Security PGP key can be obtained from the location provided below. Copyright (c) 2006 by Symantec Corp. Permission to redistribute this alert electronically is granted as long as it is not edited in any way unless authorized by Symantec Security Response. Reprinting the whole or part of this alert in any medium other than electronically requires permission from secure@symantec.com. 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. Symantec, Symantec products, Symantec Security Response, and SymSecurity are registered trademarks of Symantec Corp. and/or affiliated companies in the United States and other countries. All other registered and unregistered trademarks represented in this document are the sole property of their respective companies/owners. ====================================================================== ========================================================= Les serveurs de référence du CERT-Renater http://www.urec.fr/securite http://www.cru.fr/securite http://www.renater.fr ========================================================= + CERT-RENATER | tel : 01-53-94-20-44 + + 151 bd de l'Hopital | fax : 01-53-94-20-41 + + 75013 Paris | email: certsvp@renater.fr + =========================================================