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77 lines
3.1 KiB
77 lines
3.1 KiB
/**************************************************************************** |
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* netutils/thttpd/cgi-src/phf.c |
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* Cracker trap |
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* |
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* Copyright (C) 2009 Gregory Nutt. All rights reserved. |
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* Author: Gregory Nutt <gnutt@nuttx.org> |
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* |
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* Derived from the file of the same name in the original THTTPD package: |
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* |
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* Copyright © 1996 by Jef Poskanzer <jef@mail.acme.com>. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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****************************************************************************/ |
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/* Old distributions of the NCSA and Apache web servers included a |
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* version of the phf program that had a bug. The program could |
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* easily be made to run arbitrary shell commands. There is no real |
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* legitimate use for phf, so any attempts to run it must be considered |
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* to be attacks. Accordingly, this version of phf logs the attack |
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* on stderr and then returns a page on CONFIG_THTTPD_CGI_OUTFD indicating |
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* that phf doesn't exist. |
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*/ |
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/**************************************************************************** |
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* Included Files |
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****************************************************************************/ |
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#include <nuttx/config.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include "config.h" |
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/**************************************************************************** |
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* Public Functions |
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****************************************************************************/ |
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int main(int argc, char *argv[]) |
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{ |
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fprintf(stderr, "phf CGI probe from %s\n", getenv("REMOTE_ADDR")); |
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(void)printf("\ |
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Content-type: text/html\n\ |
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Status: 404/html\n\ |
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\n\ |
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<HTML><HEAD><TITLE>404 Not Found</TITLE></HEAD>\n\ |
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<BODY><H2>404 Not Found</H2>\n\ |
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The requested object does not exist on this server.\n\ |
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The link you followed is either outdated, inaccurate,\n\ |
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or the server has been instructed not to let you have it.\n\ |
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</BODY></HTML>\n"); |
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return 0; |
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}
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