Penetration Testing mailing list archives

Re: [PEN-TEST] websence bypass ?


From: "Lightsey, Jeff" <Jeff.Lightsey () LYONDELL COM>
Date: Tue, 8 May 2001 09:04:08 -0500

Ed,

This method is great however it will not work if you are using proxy
servers.

www.checkyoursix.com

-----Original Message-----
From: Ed Rolison <ed.rolison () BYZANTIUM COM>@LYONDELL
Sent: Thursday, April 26, 2001 9:59 AM
To:   PEN-TEST () SECURITYFOCUS COM
Subject:      Re: [PEN-TEST] websence bypass ?

 <<...OLE_Obj...>>
You can sometimes add :80 to the end of a url http://www.yahoo.com:80
You can also use the ip address of the webserver http://xxx.xxx.xxx.xxx
Maybe even add a :80 to the end of the ip url.
There is also a way to convert the ip address into a number string, I
have
to go talk to some
people to remember how to do that one, but email me back so that I
remember.
Tony

Converting to a numeric value is done by 'pretending' that the dotted quad
is a
base 256 number. Thus the first byte is multiplied by 256*256*256, the
second by
256*256 the third by 256 and the last is not multiplied at all. Add these
up and
then try and connect to it using that number.

66.38.151.10
= 66 * 256 * 256 * 256
+ 38 * 256 * 256
+ 151 *256
+ 10
= 1109825290

Can then connect to this as http://1109825290 apparantly that'll skip past
a
number of validators which check against IP and 'name'

(Or you could just use an IP-to-DWORD calculator such as that on
http://www.fichtner.net/tools/ip2dword/
More info: http://www.pc-help.org/obscure.htm )

--
Ed Rolison
System Administrator


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