===================================================================== CERT-Renater Note d'Information No. 2007/VULN302 _____________________________________________________________________ DATE : 17/07/2007 HARDWARE PLATFORM(S) : / OPERATING SYSTEM(S) : Systems running Symantec AntiVirus Corporate Edition, Symantec Client Security. ====================================================================== http://www.symantec.com/avcenter/security/Content/2007.07.11c.html http://www.symantec.com/avcenter/security/Content/2007.07.11b.html ______________________________________________________________________ SYM07-017 11 July, 2007 Symantec AntiVirus Corporate Edition Local Elevation of Privilege Revision History None Risk Impact Medium Remote Access No Local Access Yes Authentication Required Yes Exploit available No Overview A notification window displayed by Symantecs Real-Time protection service could be exploited by a local user to gain elevated privileges on the local system. Affected Products Product Affected Version* Solution Symantec AntiVirus Corporate Edition 9.0 SAV 9.0.6 MR6 MP1- build 1100 or later http://www.symantec.com/enterprise/support/all_products.jsp 10.0 10.1.4 MR4 MP1- build 4010 or later http://www.symantec.com/enterprise/support/all_products.jsp 10.1 10.1.4 MR4 MP1- build 4010 or later http://www.symantec.com/enterprise/support/all_products.jsp Symantec Client Security 2.0 SCS 2.0.6 MR6 MP1 - build 1100 or later http://www.symantec.com/enterprise/support/all_products.jsp 3.0 SCS 3.1.4 MR4 MP1 - build 4010 or later http://www.symantec.com/enterprise/support/all_products.jsp 3.1 SCS 3.1.4 MR4 MP1 - build 4010 or later http://www.symantec.com/enterprise/support/all_products.jsp Note: *All versions and builds prior to the version listed under Solution are affected. Symantec AntiVirus Corporate Edition 10.0 (SAV CE) users can obtain this update by migrating to SAV CE 10.1MR4 MP1 or later. Symantec Client Security (SCS) 3.0 users can obtain the update by migrating to SCS 3.1 MR4 MP1 or later. Symantec Platinum Support customers can also download updates from the Platinum Web site. Unaffected Products Product Version Norton Product line All Symantec AntiVirus Corporate Edition 10.2, all builds Symantec AntiVirus for Linux All Details The Real-Time scanner (RTVScan) component of Symantec Antivirus Corporate Edition provides notification and logging services for the product. One function of RTVScan is to display a notification window with information about a threat found on the system, if the program is configured to use that option. Ali Rahbar notified Symantec that an unprivileged user could potentially attack this window with specially crafted code, and gain SYSTEM level privileges on their local system. The user could then run code of their choice on their local system. Symantec response Symantec engineers have verified that the issue exists in the versions of Symantec AntiVirus Corporate Edition listed in the table above. Our investigation showed that the potential attack is limited to the local user, and that the elevation of privilege is limited to the users own system. Symantec is not aware of any customers impacted by this issue, or of any attempts to exploit the issue. As a part of normal best practices, users should keep vendor-supplied patches for all application software and operating systems up-to-date. Symantec recommends any affected customers update their product immediately to protect against potential attempts to exploit this issue. Mitigation In a managed environment, administrators can disable Notification Message (alert) window, and lock the notification option to prevent users from re-enabling the Notification Message window. Best Practice Symantec recommends any affected customers update their product to protect against potential attempts to exploit this issue. As part of normal best practices, Symantec recommends the following: * Run under the principle of least privilege to limit the impact of exploits. * Keep all operating systems and applications updated with the latest vendor patches. * Follow a multi-layered approach to security. Run both firewall and antivirus software to provide multiple points of detection and protection from inbound and outbound threats. * Use network intrusion detection systems to monitor network traffic for signs of anomalous activity. This may aid in detection of attacks related to exploitation of vulnerabilities. Credit Symantec would like to thank Ali Rahbar of Sysdream (http://www.sysdream.com) for reporting this issue. References 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 has been requested for this vulnerability. SecurityFocus (http://www.securityfocus.com) has assigned Bugtraq ID (BID) 24810 to this issue. ___________________________________________________________ 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. Symantec-Product-Vulnerability-Response Symantec Vulnerability Response Policy Symantec Product Vulnerability Management PGP Key Symantec Product Vulnerability Management PGP Key _________________________________________________________________ Copyright (c) 2007 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 secure@symantec.com 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. Initial Post on: Tuesday, 26-Jun-07 12:00:00 Last modified on: Friday, 13-Jul-07 16:16:02 ______________________________________________________________________ SYM07-016 July 11, 2007 Symantec Client Security Internet E-mail Auto-Protect Stack Overflow Revision History None Severity Low Remote Access No Local Access Yes Authentication Required Yes Exploit publicly available No Overview A stack overflow in Symantec Anti-Virus Corporate Editions Internet Email Auto-Protect feature could potentially crash the Internet Email scanning feature. Affected Products Product Version Solution Symantec AntiVirus 9.x, all builds SAV 9 MR6 Corporate Edition prior to the solution (SAV 9.0.6.1000) or later https://fileconnect.symantec.com/ 10.0, all builds Upgrade to version 10.1 or later https://fileconnect.symantec.com/ Symantec Client Security 2.0.x, all builds Symantec Client Security prior to the solution 2.0.6 MR6 (build 1000-31) or later https://fileconnect.symantec.com/ 3.0.x, all builds Upgrade to SCS 3.1 or later https://fileconnect.symantec.com/ NOTE: Platinum Support and Premium Support customers can also download the updates from the Platinum Support Web site. Unaffected Products Product Version Build Symantec AntiVirus Corporate Edition 10.1 all 10.2 all Symantec Client Security 3.1 all Symantec Antivirus for Linux all all Norton AntiVirus all all Norton Internet Security all all Details Symantec AntiVirus Corporate Editions Internet E-mail Auto-Protect feature protects incoming and outgoing email messages that use the POP3 or SMTP communications protocol. When Internet E-mail Auto-Protect is enabled, an outgoing email with more than 951 characters in the To:, From: or Subject: fields could cause a stack overflow. The stack overflow could crash the Internet E-mail real-time protection service, resulting in a local denial of service. Subsequent outgoing SMTP email messages will not be scanned if the service has crashed. File system Auto-Protect (real-time scanning), scheduled scanning, and on-demand scanning are not affected if the Internet E-mail scanning services has stopped, and these features will continue to function. This issue was reported to Symantec by Jordi Corrales. Symantec response Symantec engineers have confirmed that this vulnerability exists in the products listed above, and have provided updates to resolve the issue. This vulnerability exists only in the Internet E-mail Auto-Protect feature, and it can be exploited only if the feature is enabled on the users system. The Lotus Notes and Microsoft Exchange Auto-Protect plug-ins are not impacted by this vulnerability. Symantec is not aware of any customers impacted by this issue, or of any attempts to exploit the issue. Mitigation Disable Internet E-Mail Auto-Protect, if the feature is not needed. Administrators can lock this option to ensure that users cannot accidentally re-enable it. Best Practices Symantec recommends any affected customers update their product immediately to protect against potential attempts to exploit this vulnerability. As part of normal best practices, Symantec recommends the following: * Run under the principle of least privilege to limit the impact of exploits. * Keep all operating systems and applications updated with the latest vendor patches. * Follow a multi-layered approach to security. Run both firewall and antivirus software to provide multiple points of detection and protection from inbound and outbound threats. * Use network intrusion detection systems to monitor network traffic for signs of anomalous activity. This may aid in detection of attacks related to exploitation of vulnerabilities. Credit Symantec would like to thank Jordi Corrales for reporting this issue. References 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. The CVE initiative has assigned CVE-2006-3456 to this issue SecurityFocus (http://www.securityfocus.com) has assigned Bugtraq ID (BID) 24802 to this issue. ___________________________________________________________ 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. Symantec-Product-Vulnerability-Response Symantec Vulnerability Response Policy Symantec Product Vulnerability Management PGP Key Symantec Product Vulnerability Management PGP Key _________________________________________________________________ Copyright (c) 2007 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 secure@symantec.com 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. Initial Post on: Wednesday, 11-Jul-07 8:00:00 Last modified on: Wednesday, 11-Jul-07 15:41:05 ====================================================================== ========================================================= 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 + =========================================================