5_of_hearts

5 of Hearts

Run ./build.sh to build and run just this challenge.

Objective

Exploit a RISC-V stack-based buffer overflow on TCP port 23 and retrieve the flag from the filesystem.

Savvy players can use the md5sum(1) command on the target to get the hash of the flag without exfiltrating it.

Solution

Install pwntools. Run ./brute.py to get the ELF. Run ./solve.py to solve the challenge.