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TOPIC: killin firewalls

killin firewalls 14 years 10 months ago #3622

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hello peep,any idea about how to disable a firewall of another person;thnx?

Re: killin firewalls 14 years 10 months ago #3623

  • Jack
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Mmmm, sounds kinda like hacking, which this site is not.
What is your need to disable another’s firewall?

And remember when you say firewall you might as well be saying automobiles, there are that many different flavors out there so the techniques may be just as unique.
Jack Burgess, Staff
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Re: killin firewalls 14 years 10 months ago #3635

There are a variety of very effective methods...
however I find this one works the best...

Go to the Head of the IT department.. get permission to turn firewall off.

Walk up to console.. shutdown firewall.

No seriously.. can you be more specific about why you need this information. Its kinda like asking "Hey how do you kill smoeone in 5 ways with your bare hands".. I could tell you, but would it be ethical ?

Sahir Hidayatullah. Staff - Associate Editor & Security Advisor

Kill Firewalls 14 years 10 months ago #3636

Wow sahirh, can you really do that! You must be a black-belt in TCP/IP

Re: killin firewalls 14 years 10 months ago #3638

Crashing a system is always much easier than
1. Working around it
2. Exploiting it.

Any system has a finite amount of resources it can draw on (RAM, CPU, Disk space etc)... if you can quantitatively exhaust any or all of these, some operation ceases and you win.

TCP/IP makes life easier. You can use the protocol with complete anonymity if you are not interested in getting anything back from a connection.

Consider a situation where a stateful inspection packet filtering firewall has to handle a million different connections from spoofed source IP addresses, each of these sending heavily fragmented packets that it needs to reassemble. This uses processor time and vast quantities of RAM.

If you want an example of something like this at a very simple level, google for the recent bug in zonealarm that caused it to crash (and take the system with it) when it was forced to process a massive number of random UDP packets.

Of course thats a tiny personal firewall.. but the bigger they are, the harder they fall.
Sahir Hidayatullah. Staff - Associate Editor & Security Advisor

Re: killin firewalls 14 years 10 months ago #3641

  • sidd
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check out what kind of a firewall is it like checkpoint, nokia, baracuda or pix ...etc

Try using the SYN attack :wink:
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