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www.waraxe.us Forum Index -> Newbies corner -> Help with sql injection
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Help with sql injection
PostPosted: Mon Oct 17, 2005 12:27 pm Reply with quote
Regular user
Regular user
Joined: Oct 17, 2005
Posts: 5

I have tried all there is,like simple pocs but the database is not spiting any errors,can someone give me a hand since im kinda new to injection,here is the form:

<form action="?mod=chpass" method="post">
       Login: <input type="text" name="userid" /><br />

       Old Password: <input type="password" name="pass" /><br />
       New Password: <input type="password" name="pass2" /><br />
       Confirm New: <input type="password" name="pass3" /><br />
       <input type="Submit" value="Change password" />

This is to change password since is the only form available to exploit,no login form available so i want to get a list of users and md5 passwords if possible.

All i could collect was a raw login in witch you can see the sql structure from another site,supposed to be stored like this:

INSERT INTO `login` (`account_id`, `userid`, `user_pass`, `sex`, `email`) VALUES ('1', 's1', 'p1', 'S','a@a.com');
INSERT INTO `login` (`account_id`, `userid`, `user_pass`, `sex`, `email`) VALUES ('2', 's2', 'p2', 'S','a@a.com');

Thanks in advance.
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PostPosted: Tue Oct 18, 2005 1:07 am Reply with quote
Regular user
Regular user
Joined: Oct 17, 2005
Posts: 5

Update,i found the file that precess the form:


echo "<form action=\"?page=changepass\" method=\"post\">Login:<br /><input type=\"text\" name=\"userid\" /><br />
Old Password:<br /><input type=\"password\" name=\"pass\" /><br />
New Password:<br /><input type=\"password\" name=\"pass2\" /><br />
<input type=\"Submit\" value=\"Change password\" />

function error($string){
   echo $string;

if (isset($_POST['userid']) != NULL && isset($_POST['pass']) != NULL && isset($_POST['pass2']) != NULL) {
   $link = @mysql_connect($mysqlserver,$mysqluser,$mysqlpass);
   $userid = mysql_real_escape_string($_POST['userid']);
   $pass = mysql_real_escape_string($_POST['pass']);
   $pass2 = mysql_real_escape_string($_POST['pass2']);
      if (strlen($userid) <= 3){
       error("This login is wrong!");
      elseif (strlen($pass) <= 3 || strlen($pass2) <= 3 || $pass == NULL || $pass2 == NULL){
       error("Your password must contain at least 4 symbols.");
      } else {
          $result = mysql_query("SELECT `user_pass` FROM $server.login WHERE `userid` = '$userid'");
          if(mysql_result($result,0) != $pass && mysql_result($result,0) != NULL){
          error("Sorry, but password is wrong.");
          } else {
            $checklogin = "SELECT `userid` FROM $server.login WHERE `userid` = '$userid'";
             $checkloginres = mysql_query($checklogin);
             if(mysql_result($checkloginres,0) == NULL){
                error("Sorry, but your login doesn't exist.");
             } else {
      $query = "UPDATE $server.login SET `user_pass` = '$pass2' WHERE `userid` = '$userid'";
         echo "Your password changed.";

Still needing a hand,thanks.
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Help with sql injection
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