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SYM06-012
July 27, 2006
Symantec Brightmail AntiSpam Multiple Vulnerabilities

Revision History
None

Risk Impact
Medium

RemoteYes
LocalNo
Authentication RequiredNo
Exploit publicly availableNo

Overview
Multiple vulnerabilities have been reported in Symantec Brightmail AntiSpam. Confidential system information can be read or modified by combining these issues.

Affected Enterprise Products
ProductVersionBuildUpgrade To
Symantec Brightmail AntiSpam (SBAS)AllAllSMS for SMTP 5 or SBAS 6.0.4

Details
Symantec Brightmail AntiSpam fails to fully sanitize file names passed to the DATABLOB-GET / DATABLOB-SAVE requests of directory traversal Sequences. This directory traversal vulnerability could result in confidential system information being exposed.

During the installation of email scanners, three options are given for identifying the Brightmail AntiSpam Control Center that will control the scanner. The first option is a local Control Center; the second option is to identify the Control Center by its IP address; and the third option allows the Control Center to connect from any computer. The third option could allow an attacker to impersonate the Control Center, exposing the following vulnerabilities.

  • The Brightmail AntiSpam service can be hung by sending invalid posts, causing a Denial of Service.
  • By combining with the Directory Traversal vulnerability, some system files can be read.
  • By combining with the Directory Traversal vulnerability, it is possible to overwrite existing files on the same drive as Symantec Brightmail AntiSpam

Symantec Response
Symantec advises all current SBAS customers to upgrade to Symantec Mail Security (SMS) for SMTP 5.0, which does not have this vulnerability. SMS for SMTP 5.0, Symantec's flagship gateway mail security software product, combines proven SBAS technology with significant new email security features. Information describing SMS for SMTP 5.0 is available at http://www.symantec.com/Products/enterprise?c=prodinfo&refId=845&cid=1011. All SBAS customers with current maintenance agreements are entitled to upgrade to SMS for SMTP 5.0 at no additional cost.

For customers unable to upgrade to SMS for SMTP 5.0, Symantec has created and released SBAS 6.0.4, a product update that addresses this vulnerability. SBAS 6.0.4 properly sanitizes all directory traversal input. The option to allow the SBAS Control Center to connect from any IP address has been eliminated. Customers can obtain SBAS 6.0.4 on Symantec FileConnect (https://fileconnect.symantec.com/selectlicenselang.html) using their SBAS license serial number.

Credit
Symantec would like to thank George A. Theall of Tenable Network Security, Inc. for reporting this issue and for providing coordination while Symantec resolved it.


Symantec takes the security and proper functionality of our products very seriously. As founding members of the Organization for Internet Safety (OISafety), Symantec supports and follows the principles of responsible disclosure. Symantec also subscribes to the vulnerability disclosure guidelines outlined by the National Infrastructure Advisory Council (NIAC).

Please contact secure@symantec.com if you feel you have discovered a security issue in a Symantec product. A Symantec Product Security team member will contact you regarding your submission. Symantec strongly recommends using encrypted email for reporting vulnerability information to secure@symantec.com. The Symantec Product Security PGP key can be found at the end of this message.

Symantec has developed a Product Vulnerability Response document outlining the process we follow in addressing suspected vulnerabilities in our products. This document is available below.

Symantec-Product-Vulnerability-Response Symantec Vulnerability Response Policy Symantec Product Vulnerability Management PGP Key Symantec Product Vulnerability Management PGP Key


Copyright (c) 2009 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.

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Initial Post on: Thursday, 27-Jul-06 20:50:00
Last modified on: Friday, 28-Jul-06 03:59:26