Admin login suddenly stopped working

[nlinksolution]

Hi,

I have a zencart store on domain
www.cigear.com

Now the problem is admin login is suddenly stopped working. It also not giving error message like "Invalid username/password"

Also password forget tool is not working.

When i try to login it gives me same page named login.php

I have cleared my browsers cache memory and cookies.

Also tried changing password from database manually. I know the encryption and decryption topics.

I also debug the file login.php putting and found that script is not reach at this line (find the code above)

 require('includes/application_top.php');

  $message = false;
echo 'test1'; // Display echo test here
  if (isset($_POST['submit'])) {
echo 'test2'; // echo doesnt work here
    $admin_name = zen_db_prepare_input($_POST['admin_name']);
    $admin_pass = zen_db_prepare_input($_POST['admin_pass']);
    $sql = "select admin_id, admin_name, admin_pass from " . TABLE_ADMIN . " where admin_name = '" . zen_db_input($admin_name) . "'";
    $result = $db->Execute($sql);
    if (!($admin_name == $result->fields['admin_name'])) {
      $message = true;
      $pass_message = ERROR_WRONG_LOGIN;
    }
    if (!zen_validate_password($admin_pass, $result->fields['admin_pass'])) {
      $message = true;
      $pass_message = ERROR_WRONG_LOGIN;
    }
    if ($message == false) {
      $_SESSION['admin_id'] = $result->fields['admin_id'];
      if (SESSION_RECREATE == 'True') {
        zen_session_recreate();
      }
      zen_redirect(zen_href_link(FILENAME_DEFAULT, '', 'SSL'));
    }
  }

I also put some values into the text-box and then press login button. i mean to say i submit some values to form.



Please Help me in this if anyone know what issue might causes this.

[dbltoe]

Sudden changes in admin only indicate hacks.
You need to do the following immediately.
http://www.zen-cart.com/wiki/index.p...ing_From_Hacks

[DrByte]

Or your server's PHP configuration has changed and session handling no longer works correctly.
Or you've recently added SSL and your session cookies are all busted.
Or you're running your browser in private-browsing mode and thus session cookies cannot be set, so you won't be able to login.

Or, as dbltoe has said, you're using an outdated version of Zen Cart with known vulnerabilities and you've been hacked and need to do a thorough cleanup.

[nlinksolution]

It wasn't hack that is sure because we restore the backup. and still get this issue.

I dont know what kind of PHP configuration is needed. But any of you might know.

Here is the configuration.

http://www.cigear.com/phpinfo.php

Thanks in advance