pwnProeasy

fptr

spbctf

Task: Binary with function pointer on stack, no PIE, no canary. Solution: Overflow buffer to overwrite function pointer with win function address.

stack_overflow function_pointer ret2win no_pie no_canary

function_pointer_overwriteret2wincontrol_flow_hijack

$ ls tags/ techniques/

stack_overflow function_pointer ret2win no_pie no_canary

function_pointer_overwriteret2wincontrol_flow_hijack

Analysis

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$ python3 exploit.py --target 192.168.1.1 --port 8080
[*] Connecting to target...
[+] Shell obtained!

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