CVE-2000-1022
The mailguard feature in Cisco Secure PIX Firewall 5.2(2) and earlier does not properly restrict access to SMTP commands, which allows remote attackers to execute restricted commands by sending a DATA command before sending the restricted commands.
Date published : 2001-01-22
http://www.securityfocus.com/bid/1698
http://archives.neohapsis.com/archives/bugtraq/2000-09/0222.html