Telindus 1100 ASDL router running firmware 6.0.x uses weak encryption for UDP session traffic, which allows remote attackers to gain unauthorized access by sniffing and decrypting the administrative password.
http://www.securityfocus.com/bid/6919
http://www.iss.net/security_center/static/10951.php
http://archives.neohapsis.com/archives/bugtraq/2002-12/0262.html