CVE-2001-1056 Information

Description

IRC DCC helper in the ip_masq_irc IP masquerading module 2.2 allows remote attackers to bypass intended firewall restrictions by causing the target system to send a \DCC SEND\ request to a malicious server which listens on port 6667 which may cause the module to believe that the traffic is a valid request and allow the connection to the port specified in the DCC SEND request.

Reference

http://archives.neohapsis.com/archives/bugtraq/2001-07/0733.html http://archives.neohapsis.com/archives/bugtraq/2001-07/0750.html http://www.iss.net/security_center/static/6923.php http://www.osvdb.org/1916 http://www.securityfocus.com/bid/3117