Created
December 29, 2019 11:45
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| #!/usr/bin/python3 | |
| import angr | |
| import sys | |
| import claripy | |
| def solve(elf_binary="./binary.elf"): | |
| project = angr.Project(elf_binary) | |
| arg = claripy.BVS('arg',8*0x20) | |
| initial_state = project.factory.entry_state(args=[elf_binary,arg]) | |
| simulation = project.factory.simgr(initial_state) | |
| simulation.explore(find=is_successful) | |
| print("[i] >(%d)" % (len(simulation.found))) | |
| if len(simulation.found) > 0: | |
| for solution_state in simulation.found: | |
| print("[>>] {!r}".format(solution_state.solver.eval(arg,cast_to=bytes))) | |
| def is_successful(state): | |
| output = state.posix.dumps(sys.stdout.fileno()) | |
| if b'Jackpot' in output: | |
| return True | |
| return False | |
| if __name__=="__main__": | |
| if len(sys.argv) < 2: | |
| print("[*] need 2 arguments\nUsage: %s [binary path] [target address]") | |
| solve(sys.argv[1]) |
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