Exploit Development

Our latest adventures in firmware exploitation

MIPS Overflow Writer

Jun 25, 2020

Once you’ve written a fair share of MIPS buffer overflows, you’ll have a pretty good idea of how the stack is laid out and how the math works to perfectly overwrite the return address.

It becomes less of a learning experience and more of a tedious operation. This same feeling led me to write MOW, the MIPS Overflow Writer.

This Python script requires minimal, easily retrievable arguments to generate MIPS based buffer overflows and send it to the target. This saves time and prevents...

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The .text Dilemma

Jun 23, 2020

Lately I find myself writing a lot of code to exploit MIPS buffer overflows. Each one is different and frustrating in it’s own little way, but fun none the less.

I usually write a small ROP gadget that will call system with a command I pass on the stack, but occasionally I find the perfect function in the .text section that does everything I need.

Typically it’s a leftover debug function that has no path for a user to call, but performs an operation that would be useful.

In the...

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