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More info on Apache Overkill Buffer overflow

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00dc
Posts: 1
Joined: Wed Oct 02, 2019 10:33 pm

More info on Apache Overkill Buffer overflow

Post by 00dc » Wed Oct 02, 2019 10:40 pm

Hi guys,

I tried to recreate the apache overkill buffer overflow and realised I had control over a1 and t1. The program crashes when loading t1 in t0 with the 'lb' instruction. Makes sense as t1 is holding more than a byte. I'm just wondering how exactly they made this into a useful exploit (as in how did they influence the return address using a temp register). I posted a screenshot of my diassembly below.

Image
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