SecureXpert Labs Advisory [SX-20000620-1] - Denial of Service vulnerability in Microsoft Windows 2000 Telnet Server. A remote user can cause the telnet server to stop responding to requests by sending a stream of binary zeros to the telnet server. This can easily be reproduced from a Linux system using netcat with an input of /dev/zero, with a command such as "nc target.host 23 < /dev/zero".
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