SUMMARY

Premium Antispam feature of Symantec Mail Security for Domino is vulnerable to allowing a Domino server to be used as an unintended mail relay. This could be used to relay SPAM mail anonymously.

Severity
Medium (can be used to send SPAM)

AFFECTED PRODUCTS

Vulnerable Products

ISSUES

Details
The Premium Antispam feature of Symantec Mail Security for Domino fails to recognize and reject a specific SMTP recipient address format. The Domino mail server accepts mail addressed to SMTP addresses that conform to this unrecognized format. This mail is then relayed by the Domino server to remote users even when relaying is unintended. This security vulnerability can be exploited and used by spammers in an effort to remain anonymous.

Note: Customers utilizing Symantec Mail Security for Domino who have not enabled Premium AntiSpam are not at risk. This vulnerability only applies to those customers utilizing the Symantec Premium AntiSpam feature of Symantec Mail Security for Domino.

MITIGATION

Symantec Response
Symantec Engineers have verified these issues and have added fixes to the latest product update (5.1.2.28). Symantec strongly recommends all customers utilizing Symantec Mail Security for Domino immediately apply the latest update.

Upgrade Information
Symantec Mail Security for Domino updates are available through the Platinum Support Web Site for Platinum customers or through the FileConnect -Electronic Software Distribution web site for all licensed users.