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.

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.