środa, 21 sierpnia 2019

stackoverflow-intro challenge

This time I decided to check one simple challenge found somewhere between other challenges found at github. We will check stackoverflow-intro (pretty similar to few cases from Protostar CTF). Here we go...
We will start here:

After reading the source we should already be prepared to overwrite the value with success() address:

Got success() address, time to calculate the overflow:

Great! It's done. :)

See you next time!


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