17 lines
527 B
Text
17 lines
527 B
Text
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#!/bin/bash
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# assemble shellcode
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nasm -felf32 shellcode.asm -o x.o && ld -m elf_i386 x.o -o shellcode &> /dev/null
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# remove object file
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rm x.o
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# extract shellcode and remove binary
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shellcode=$(for byte in $(objdump -d ./shellcode | grep "^ " | cut -f2); do echo -n '\x'$byte; done)
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rm shellcode
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# TODO place shellcode into test_shellcode.c and shellcode.asm
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# compile test_shellcode.c and execute it afterwards
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gcc -o test_shellcode -m32 -fno-stack-protector -fno-pie -z execstack -O0 test_shellcode.c && ./test_shellcode
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