The web server control panel in 602LAN SUITE 2004 allows remote attackers to make it more difficult for the administrator to read portions of log files via a "</pre><!-" sequence in an HTTP GET request in the logon, possibly due to a cross-site scripting (XSS) vulnerability.

Directory traversal vulnerability in 602LAN SUITE 2004.0.04.1221 allows remote authenticated users to upload and execute arbitrary files via a .. (dot dot) in the filename parameter.

The Telnet proxy in 602 Lan Suite 2004.0.04.0909 and earlier allows remote attackers to cause a denial of service (socket exhaustion) via a Telnet request to an IP address of the proxy's network interface, which causes a loop.

The webmail service in 602 Lan Suite 2004.0.04.0909 and earlier allows remote attackers to cause a denial of service (CPU and memory consumption) by sending a POST request with a large Content-Length value, then disconnecting without sending that amount of data.