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Re: Session Hijacking over HTTP
From: Marco Ivaldi <raptor () mediaservice net>
Date: Thu, 20 Mar 2008 11:15:15 +0100 (ora solare Europa occidentale)

Hey 11ack3r,

On Tue, 18 Mar 2008, 11ack3r wrote:

Hello Everyone,

I was curious to know how would webmail portals like gmail.com and yahoo.com protect their users from session hijacking when they use HTTP after authentication.

Nice question;)

As I see it is trivial to capture traffic over the wire including session cookies. In such a case can an attacker just reuse the session cookies in his/her browser and compromise the user account?

You should try xenion's recently released cookietools:

http://xenion.antifork.org/cookietools/
http://www.securityfocus.com/archive/101/484866/30/570/threaded

Unfortunately, antifork.org seems down at the moment. However, there's a mirror here:

http://packetstormsecurity.org/web/cookietools-0.3.tgz

WHat is the best way to protect session cookies from hijacking esp.
due to network eavesdropping? Of course HTTPS can also be bypassed
with MITM attacks if users ignore browser warnings.

http://en.wikipedia.org/wiki/Session_hijacking
http://www.owasp.org/index.php/Category:Session_Management

Cheers,

--
Marco Ivaldi, OPST
Red Team Coordinator      Data Security Division
@ Mediaservice.net Srl    http://mediaservice.net/


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