Hello all,

My name is Dan, and i am participating in a CTF contest

http://crew.ccs.neu.edu/ctf/

I am going to be running a windows 2003 server, and administering it

remotely using Terminal services.

I heard about the man-in-the-middle exploit that has been found for

terminal services, and have learned that using ssl with terminal services

can avoid this exploit, but in my case, i am unable to use ssl.

Last years contest went to a group that had wrote the Openssh to main

in the middle everyone using linux, but weren't able to affect the

windows users, this year they focused on writing such a program for

terminal services. So you can see my concern. If i can administer my

machine remotely and safely then i will have a decent chance of getting

into other peoples, and keeping my services (web, mail,..etc) alive and

kick.

So the question is how might i secure terminal services? from the

server side only? I thought that if i configure the arp table on the

server and enter the gateway as a static entry, and only allow it to

connect to terminal services then i might have a fighting chance, becuase

the MITM attack is based on arp poisoning.

Thanks for your time and help

Dan

p.s. if you have any other ideas or software for securing a server in a

very very hostile network, please let me know.

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