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Hacking and Security => Hacking and Security => Topic started by: gh0st on January 11, 2012, 02:14:50 AM

Title: how much of lenght can a protocol recive?
Post by: gh0st on 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?
Title: Re: how much of lenght can a protocol recive?
Post by: NeX on 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.
Title: Re: how much of lenght can a protocol recive?
Post by: xzid on January 11, 2012, 04:13:23 AM: that made no sense to me
Title: Re: how much of lenght can a protocol recive?
Post by: imation on January 11, 2012, 10:40:02 AM: Quote from: xzid on January 11, 2012, 04:13:23 AM
that made no sense to me

me either, maybe he was high
Title: Re: how much of lenght can a protocol recive?
Post by: ande on 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.
Title: Re: how much of lenght can a protocol recive?
Post by: gh0st on 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
Title: Re: how much of lenght can a protocol recive?
Post by: gh0st on January 17, 2012, 09:25:48 PM: and what dp programers do to defend against a malicius network packet?
Title: Re: how much of lenght can a protocol recive?
Post by: ande on January 17, 2012, 10:02:45 PM: Quote from: gh0st on January 17, 2012, 09:25:48 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.
Title: Re: how much of lenght can a protocol recive?
Post by: ca0s on 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?