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Re: firewall or VPN concentrator ???
From: Martin Mačok <martin.macok () underground cz>
Date: Mon, 8 May 2006 12:42:43 +0200

On Fri, May 05, 2006 at 02:28:38PM -0000, jaideepjha () rediffmail com wrote:

On port 1723, pptp service was found to be running

Try thc-pptp-bruter against it to find weak user/pass combinations.

and on port 500, ISAKMP was running.
ike-scan returned negative result.

Have you tried all authentication methods? I mean something like

for METHOD in `seq 1 5` 64221 `65001 65010` ; do
  ike-scan -m $METHOD $TARGET
done

Try also with -A ...

When you get a reply, try it with "-v --showbackoff" too ...

Have you tried TCP OS fingerprinting too? I would try "p0f [-A/-R]" and
"xprobe2 -v -p tcp:1723:open -p udp:500:open ..."

Martin Mačok
ICT Security Consultant

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