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Find Basic Block with Angr
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import angr
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import sys
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​
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def main(argv):
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path_to_binary = "<binary>"
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project = angr.Project(path_to_binary)
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initial_state = project.factory.entry_state()
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sm = project.factory.simgr(initial_state)
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# list of basic blocks to find or to avoid
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sm.explore(find=[], avoid=[])
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for state in sm.deadended:
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print(state.posix.dumps(sys.stdin.fileno()))
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else:
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raise Exception('Could not find the solution')
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​
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if __name__ == '__main__':
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main(sys.argv)
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Pwntools Template
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from pwn import *
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import struct
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​
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context.terminal = ['alacritty', '-e', 'zsh', '-c']
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target = '<target>'
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context.binary = target
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binary = ELF(target)
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libc = ELF("./libc.so.6")
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​
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ssh_host = '<ip>'
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ssh_user = '<user>'
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ssh_pass = '<pass>'
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ssh_port = 22
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​
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if args['SSH']:
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sh = ssh(host=ssh_host, user=ssh_user, password=ssh_pass, port=ssh_port)
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p = sh.run('/bin/bash')
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junk = p.recv(4096,timeout=2)
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p.sendline(target)
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else:
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p = process(target,setuid=True)
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​
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#gdb.attach(p, gdbscript='continue')
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p.interactive()
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Extract value after string
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get = lambda x: [sh.recvuntil('{} : '.format(x)), int(sh.recvline())][1]
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p = get('p')
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LD_Preload in pwntools
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libc = ELF(<name>)
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main = ELF(<name>)
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r = main.process(env={'LD_PRELOAD' : libc.path})
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Generate shellcode on commandline
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pwn shellcraft -f d amd64.linux.setreuid 1002
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Last modified 8mo ago