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How to discover vulns in file formats?

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How to discover vulns in file formats?

This is a discussion on "How to discover vulns in file formats?" within the Applications, Tools & Papers part of the Computer Security: Discussions section; Hi, I seen some reports of power point format (.ppt) vulnerability in this forum discovered by class101. I'm a big curious how this kind of flaw is found. Can you give details? For example, what do you use? Interactive ...

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03-12-06

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How to discover vulns in file formats?

Hi,

I seen some reports of power point format (.ppt) vulnerability in this forum discovered by class101.

I'm a big curious how this kind of flaw is found. Can you give details? For example, what do you use? Interactive disassembler for analyze the load process of a powerpoint format for example? A file fuzzer (a public or wrote by yourself?)? A Binary security analyzer (like binaudit) ? Give more details please, I'm sure thta many members have this doubt too... heheh

And when a anomaly happen (for example a application crash), what stepts do you costume to do to locate where is the problem, in what part of the power point format, identify if it's exploitable, etc... ?

thnak you and sorry for a n00b question...

Regards

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