Mystery service on tcp/205

From: Andrew Simmons (andrew.simmons@mis-cds.com)
Date: Wed Mar 19 2003 - 11:03:48 EST


('binary' encoding is not supported, stored as-is) Hi all,

pen-testing a slightly unusual IIS 5 box. Along with
FTP, HTTP, NNTP (slightly odd... this is a corporate
webserver for the Greek branch of a large transnational
corporation), it's listening on TCP port 205. This is
listed as an unused Appletalk port.

Telnetting to it is most intriguing..:

[andrews@asdfgh andrews]# telnet
foo.bar.123-123-123-123.gr 205
Trying 123.123.123.123...
Connected to foo.bar.123-123-123-123.gr (123.123.123.123).
Escape character is '^]'.
HELP
2,0,Login required
quit
closeogin required
2,0,Login required

It sits there responding "2,0,Login required" to any
input. I've tried all the obvious strings with no
avail. My Linux telnet is seeing only a carriage return
rather than cr/nl pair, presumably because the target's
a Windows machine.

Does anyone have any idea what this could be? I've
Googled, searched the sec-focus archives etc to no avail.

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