Reset OpenCart user password manually (in database)

Today we will see how to reset the OpenCart password (e-commerce system in PHP) manually, directly in the database; generating the hash and the salt manually with a function created by me.

Function that generates salt and new password

Here I leave the code, and the explanation at the end.

<?php
function token($length = 32) {
 // Create random token
 $string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
 
 $max = strlen($string) - 1;
 
 $token = '';
 
 for ($i = 0; $i < $length; $i++) {
  $token .= $string[mt_rand(0, $max)];
 } 
 
 return $token;
}

function generar_pass($passTextoPlano){
 $sal = token(9);
 $hash = sha1($sal . sha1($sal . sha1($passTextoPlano)));
 return [
  "sal" => $sal,
  "hash" => $hash,
 ];
}

// Demostrar uso
$datosPass = generar_pass("hunter2");
$pass = $datosPass["hash"]; // Este va en el campo password
$sal = $datosPass["sal"]; // Este va en el campo salt
printf("La sal es %s y la pass es %s", $sal, $pass);

The function returns an array that has the salt and the password, the way to call it is to pass the password in plain text.

Once you have the salt and the password just do an update of your database table.

In my case:

update oc_user set salt = "vpBBLdiEH", password = "993100efe6af8b0f1b5cb6371430f9a43cb83b27" where username = "parzibyte";

My table is called oc_user because when I installed OpenCart I used that prefix, in your case it can vary.

The algorithm and the way that OpenCart uses it

Thanks to OpenCart is open source we can see how it generates the salt and saves the hashes.

In its source code it implements obtaining a cryptographically secure random string and then uses sha1 to hash it, concatenating it with the user’s password.

The generation of the salt is as follows:

It uses the function called token defined in helpers/general. php and then calls it, obtaining a random string of 9 digits. Then concatenate it and hash it with SHA1:

Finally, in the database it saves everything in the user table in the salt and password fields:

Knowing all those things we could write a function that generates the salt and the password to be able to reset the password of a user manually in OpenCart.