===================================================================== CERT-Renater Note d'Information No. 2007/VULN301 _____________________________________________________________________ DATE : 17/07/2007 HARDWARE PLATFORM(S) : / OPERATING SYSTEM(S) : Systems running Symantec AntiVirus. ====================================================================== http://www.symantec.com/avcenter/security/Content/2007.07.11f.html ______________________________________________________________________ SYM07-019 July 11, 2007 Symantec AntiVirus Malformed RAR and CAB Compression Type Bypass Revision History Removed invalid CVE information Added missing product information Risk Impact High Remote Access Yes Local Access No Authentication Required No Exploit publicly available No Overview Two vulnerabilities have been identified in the Symantec Decomposer component used to decompose some types of archive content while scanning for malicious content. Affected Enterprise Products Product Version Builds Update To Symantec Mail Security 8200 All 5.0.0.24 Symantec Mail Security for Microsoft Exchange 4.6.3 and earlier All 4.6.8.120 5.0.0.204 All 5.0.6.368 6.0.0 All 6.0.0.1 or later Symantec Mail Security for Domino NT 4.1.4 and earlier All 4.1.9.37 5.0.0.47 All 5.1.4.32 Symantec AntiVirus/ Filtering for Domino MPE(AIX, Linux, Solaris) 3.0.12 and earlier All 3.2.2.27 /- Symantec Scan Engine 5.0.1 and earlier All 5.1.4.24 Symantec AntiVirus Scan Engine 4.1.8 and earlier All 4.3.18.43 4.3.12 and earlier All 4.3.17 or later Symantec AntiVirus Scan Engine for MS ISA 4.3.12 and earlier All 4.3.17 or later Symantec AntiVirus Scan Engine for MS Sharepoint 4.3.12 and earlier All 4.3.17 or later Symantec AntiVirus Scan Engine for Messaging 4.3.12 and earlier All 4.3.17 or later Symantec AntiVirus for Network Attached Storage 4.3.12 and earlier All 4.3.17 or later Symantec AntiVirus Scan Engine for Clearswift 4.3.12 and earlier All 4.3.17 or later Symantec AntiVirus Scan Engine for Caching 4.3.12 and earlier All 4.3.17 or later Symantec Client Security 3.0 All Update to SCS 3.1 3.X All SCS 3.1 MR6 (build 3.1.6.6000) 2.X All SCS 2.0 MR6-MP1 (build 2.0.6.1100)/-/- Symantec Web Security 3.0.1.76 and earlier All 3.0.1.85 Symantec Gateway Security 5000 Series 3.0.1 All Update F or later Symantec Gateway Security 5400 Series 2.0.1 All Upgrade to 3.0.1 Symantec Brightmail AntiSpam 6.0.x All 6.05 5.5 All 6.05 4.x All 6.05 Symantec AntiVirus Corporate Edition 10.1 SAV 10.1.5.5000 SAV 10.1 MR6 and earlier (build 10.1.6.6000)/-/- 10.0 All Upgrade to SAV 10.1 MR6 (build 10.1.6.6000)/-/- 9.0 SAV 9.0.6.1000 SAV 9.0 MR6-MP1 and earlier (build 9.0.6.1100) Symantec AntiVirus Corperate Edition for Linux Symantec AntiVirus for Macintosh 10.X All Update to any definition after 10/1/2006 Symantec Web Security for Microsoft ISA 2004 5.0 All 5.0.3 Symantec Mail Security for SMTP 5.0.0 Solaris All Patch 175 5.0.0 Linux All Patch 175 5.0.0 Windows All Patch 176 5.0.1 All Patch 181 /- Symantec AntiVirus/Filtering for Domino MPE is no longer supported. Customers are encouraged to upgrade to Symantec Mail Security for Domino MPE /-/- Customers using the SAV CE Linux client should upgrade to version 1.0.2-75. This build is available by downloading the latest SAV CE 10.X or SCS 3.X build from FileConnect." Affected Consumer Products Product Version Builds Update To Norton AntiVirus 2006 All Run LiveUpdate in Interactive Mode 2005 All Run LiveUpdate in Interactive Mode 2004 All Run LiveUpdate in Interactive Mode Norton Internet Security 2006 All Run LiveUpdate in Interactive Mode 2005.5 AntiSpyware Edition All Run LiveUpdate in Interactive Mode 2005 All Run LiveUpdate in Interactive Mode 2004 All Run LiveUpdate in Interactive Mode Norton SystemWorks 2006 All Run LiveUpdate in Interactive Mode 2005 All Run LiveUpdate in Interactive Mode 2004 All Run LiveUpdate in Interactive Mode Norton Personal Firewall 2006 All Run LiveUpdate in Interactive Mode Norton AntiVirus for Macintosh 10.X All Update to any definition after 10/1/2006 9.X All Norton Internet Security for Macintosh 3.X All Update to any definition after 10/1/2006 Norton SystemWorks for Macintosh 3.X All Update to any definition after 10/1/2006 Products Not Affected: Product Version Builds Symantec AntiVirus for HandHelds - Corporate Edition All All Symantec AntiVirus for Handhelds All All Symantec Client Security for Nokia All All Symantec Enterprise Firewall 8.0 All Symantec Clientless VPN Gateway 4400 Series 5.0 All Symantec Firewall / VPN Appliance 100/200 All Symantec Gateway Security 300/400 Series 2.0 All Norton AntiVirus for Macintosh 7.X All Norton AntiVirus for Macintosh 8.X All Norton Internet Security for Macintosh 2.X All Norton SystemWorks for Macintosh 2.X All Norton360 All All Symantec AntiVirus Corporate Edition 10.2 All Norton AntiVirus 2007 All Norton Internet Security 2007 All Norton System works 2007 All Details The first vulnerability is related to the decomposition of RAR files. Modifying the RAR file header in a specific way, causes the decomposer to enter an infinite loop causing a Denial of Service. The second vulnerability is related to the decomposition of CAB files. The Symantec Decomposer fails to perform proper bounds checks when copying from the CAB archive. This may result in the possibility of arbitary code execution on the vulnerable system. NOTE: 1. Only currently supported Symantec Products will be updated. Customers using unsupported versions are encouraged to upgrade to a supported version. Symantec response Symantec engineers have verified and corrected these issues in all currently supported products. Updates are available for supported products. Symantec recommends customers apply the latest product update available for their supported product versions to enhance their security posture and protect against potential security threats of this nature. Product updates will be available from the Symantec support site: http://www.symantec.com/techsupp/ or via LiveUpdate when available. Symantec Norton product users who regularly launch and run LiveUpdate should already have received an updated (non-vulnerable) version of (product/component). However, to ensure all available updates have been applied, users can manually launch and run LiveUpdate in Interactive mode as follows: * Open any installed Norton product * Click on LiveUpdate in the GUI To perform a manual update using Symantec LiveUpdate, users should: * Open any installed Symantec product * Click on LiveUpdate in the toolbar * Run LiveUpdate until all available Symantec product updates are downloaded and installed To date, Symantec is not aware of any exploits for these issues. Best Practices As part of normal best practices, Symantec strongly recommends: * Restrict access to administration or management systems to privileged users. * Restrict remote access, if required, to trusted/authorized systems only. * Run under the principle of least privilege where possible to limit the impact of exploit by threats such as this. * 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. * Deploy network intrusion detection systems to monitor network traffic for signs of anomalous or suspicious activity. This may aid in detection of attacks or malicious activity related to exploitation of latent vulnerabilities Credit Symantec would like to thank 3COM, and the Zero Day Initiative for reporting these issues and providing full coordination while Symantec resolved them. ___________________________________________________________ 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 7:00:00 Last modified on: Thursday, 12-Jul-07 12:45:49 ====================================================================== ========================================================= 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 + =========================================================