Re: Thanks for the feedback and NAT-hide question



Erin Carroll wrote:

Trying to get the fragmentation and evasion to
work *and* hit the right box to inject the remote exploit was a royal pain
in the ass. I was hoping someone might be able to illustrate another way to
accomplish it.


Was there any way of determining the mechanism used to balance load?

Many load balancers use either srcip:dstip:dstport tuples, or else injected HTTP cookies to route subsequent connections to the same host. The second mechanism is most likely where the load balancer is doing the SSL termination, or where the traffic is HTTP to start with, of course.

Of course, if the server farm is using a shared session pool, and doesn't care how the connections are distributed, this becomes impossible, and you have to rely on luck. I think.

Rogan

------------------------------------------------------------------------------
This List Sponsored by: Cenzic

Concerned about Web Application Security? Why not go with the #1 solution - Cenzic, the only one to win the Analyst's Choice Award from eWeek. As attacks through web applications continue to rise, you need to proactively protect your applications from hackers. Cenzic has the most comprehensive solutions to meet your application security penetration testing and vulnerability management needs. You have an option to go with a managed service (Cenzic ClickToSecure) or an enterprise software (Cenzic Hailstorm). Download FREE whitepaper on how a managed service can help you: http://www.cenzic.com/news_events/wpappsec.php And, now for a limited time we can do a FREE audit for you to confirm your results from other product. Contact us at request@xxxxxxxxxx for details.
------------------------------------------------------------------------------



Relevant Pages

  • Re: RADWare Link Proof Questions
    ... they claim that their load balancers basically rolled-over and died ... To the best of my knowledge, this is a vulnerability with any inline device that keeps track of state changes and passes traffic. ... Download FREE whitepaper on how a managed service can ...
    (Pen-Test)
  • Re: Thanks for the feedback and NAT-hide question
    ... internal subnet that the load balancers sit on with a VIP for the ... 80/443 traffic routed to LB VIP) ... Webservers: 10.2.2.0/24 ... Download FREE whitepaper on how a managed service can ...
    (Pen-Test)