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Hacking and Security => Hacking and Security => : gh0st January 11, 2012, 02:14:50 AM

: how much of lenght can a protocol recive?
: gh0st January 11, 2012, 02:14:50 AM
Im onto protocol attacks sending a 0 day to gain remote access topic so thats my question I downloaded wireshark but I think that thats not a good starting Ive to analyzse something more important or what?

: Re: how much of lenght can a protocol recive?
: NeX January 11, 2012, 02:52:18 AM
Buffer length is defined in the source of the application you're trying to write 0day for.
So you should know programming, or reverse engineering.
: Re: how much of lenght can a protocol recive?
: xzid January 11, 2012, 04:13:23 AM
that made no sense to me
: Re: how much of lenght can a protocol recive?
: imation January 11, 2012, 10:40:02 AM
that made no sense to me

me either, maybe he was high
: Re: how much of lenght can a protocol recive?
: ande January 11, 2012, 03:00:12 PM
There is no size limit, only time limit. If you want to transfer 1tb of data, you can. But itll take some time tho. If you are asking for buffer size, that is(as already said) determined by the software in the other end. If you are referring to TCP/IP packet length that would be 1500 bytes and UDP ~500 bytes(?). Tho all of those sizes is determined by the OS so I guess they can be increased somehow.
: Re: how much of lenght can a protocol recive?
: gh0st January 11, 2012, 05:15:09 PM
well this http://www.youtube.com/watch?v=t3s-mG5yUjY&list=FLRPI0baZYq2BYMKf86elM8A&index=2&feature=plpp_video

on 8:30 says something about reverse engieenering
: Re: how much of lenght can a protocol recive?
: gh0st January 17, 2012, 09:25:48 PM
and what dp programers do to defend against a malicius network packet?
: Re: how much of lenght can a protocol recive?
: ande January 17, 2012, 10:02:45 PM
and what dp programers do to defend against a malicius network packet?

If I understand correctly you asked: "And what does programmers do to defend/protect again malicious network packets?": Don't overflow your buffers. And filter/secure your input.
: Re: how much of lenght can a protocol recive?
: ca0s January 18, 2012, 12:02:32 PM
What kind of protocol are you talking about? Something like TCP UDP and so or something like the MSN protocol?