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RideWay PN is a proxy server application that enables multiple users to share resources and files and allows users to access the Internet simultaneously through one shared Internet connection.
When RideWay PN is running with the telnet proxy service enabled, sending several random streams of data to this port (TCP port 23) can cause the server to deny access to all services, thus causing a Denial-of-Service against the machine.
Credit:
The information has been provided by SNS Research .
Example:
Below is the response in the RPN logs after sending 5 requests containing a simple 200 byte buffer.
11/06/00 18:12:57 Error(11001): WSAHOST_NOT_FOUND
(gethostbyname)(NNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNN)
(DnsNameToIP)
11/06/00 18:12:57 Connect(1): need secure dest
NNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNN/06/00
18:12:57 Connect(1): need secure dest
NNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNN/06/00
18:13:01 Error(11001): WSAHOST_NOT_FOUND
(gethostbyname)(NNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNN)
(DnsNameToIP)
11/06/00 18:13:01 Connect(1): need secure dest
NNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNN/06/00
18:13:01 Connect(1): need secure dest
NNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNN/06/00
18:13:05 Error(11001): WSAHOST_NOT_FOUND
(gethostbyname)(NNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNN)
(DnsNameToIP)
11/06/00 18:13:05 Connect(1): need secure dest
NNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNN/06/00
18:13:05 Connect(1): need secure dest
NNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNN/06/00
18:36:20 Debug: ============ Initialize RideWay PN Server (161) ============
Following this, the services on the system will be frozen until the server is restarted.
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