Re: Restricting Open Proxies

["Jay" <jay.tomas () infosecguru com>]

I think there is some confusion. Either on my part or some of the other posters. The issue is not they are getting out 
of the network through an open proxy, at least I hope not, because if thats the case then they have bigger problems 
with network config.

The issue is that once they go out their proxy they hit another one to obfuscate where they are coming from. However, 
by going thorugh the open proxy they danger themselves up to information leakage/interception which was the original 
concern.

Perhaps the original poster can clarify?

Jay

----- Original Message -----
From: merigoth () gmail com [mailto:merigoth () gmail com]
To: security-basics () securityfocus com
Sent: 21 Jun 2007 23:50:03 -0000
Subject: Re: Restricting Open Proxies

I haven't looked too deeply into this. If the corporate is using windows 2k/xp, you could consider setting the GPO to 
restrict modification of the INNET settings. (technet.microsoft.com/en-us/library/bb457144.aspx). Of course, this still 
doesn't stop cgi/web-based proxies.