Re: [Full-disclosure] AOL YGP Picture Editor YGPPicEdit.dll Multiple Buffer Overflows

[Elazar Broad <elazarb@xxxxxxxxxxxxx>]

Thanks for the clarification Vladis. To me the A's are kind of like the UV dye 
that they put in an AC system when looking for leaks...

Elazar

-----Original Message-----
>From: Valdis.Kletnieks@xxxxxx
>Sent: Dec 26, 2007 1:28 AM
>To: reepex <reepex@xxxxxxxxx>
>Cc: Elazar Broad <elazarb@xxxxxxxxxxxxx>, full-disclosure@xxxxxxxxxxxxxxxxx
>Subject: Re: [Full-disclosure] AOL YGP Picture Editor YGPPicEdit.dll Multiple 
>Buffer Overflows
>
>On Tue, 25 Dec 2007 21:53:29 CST, reepex said:
>
>> How does a bunch of 'A's prove something is exploitable?
>
>If a bunch of A's causes the EIP to end up as x'41414141', it's 95% of the
>way to being an exploit.  If it gets you some *other* crash, it's probably
>at least 30% to 40% of the way to an exploit.
>
>Go back and read the analysis of the NTP buffer overflow from a number of years
>back.  Truly a classic - they managed to leverage a *one byte* overflow into
>a complete and total rooting of the box.

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