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Bug #66835 password_verifiy
Submitted: 2014-03-06 13:39 UTC Modified: 2014-03-06 14:29 UTC
From: pl dot lamballais at flashover dot fr Assigned:
Status: Not a bug Package: *General Issues
PHP Version: 5.5.10 OS: Linux
Private report: No CVE-ID: None
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From: pl dot lamballais at flashover dot fr
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 [2014-03-06 13:39 UTC] pl dot lamballais at flashover dot fr
Description:
------------
---
From manual page: http://www.php.net/function.password-verify
---

System is:Linux webd497.20gp.ha.ovh.net 3.10.23-grsec-mutu-grs-ipv6-64+ #42 SMP Wed Feb 26 12:45:33 CET 2014 x86_64 

PHP version is 5.5.7

Notice a strange comportemnt of password_verify() depending on the fact the hash variable is using ' or ".
I start to think this affect also the hash builder as I've some user records in my database which are seen as "correct" using password_verify and others which are seen as "bad password" when in fact they are all build the same way.

Test script:
---------------
// First exemple will give "Password is valid!"
$hash = '$2y$07$BCryptRequires22Chrcte/VlQH0piJtjXl.0t1XkA8pw9dMXTpOq';

if (password_verify('rasmuslerdorf', $hash))
{
    echo 'Password is valid!';} else {
    echo 'Invalid password.';}

// But this one will will give "Invalid password!"
$hash = "$2y$07$BCryptRequires22Chrcte/VlQH0piJtjXl.0t1XkA8pw9dMXTpOq";

if (password_verify('rasmuslerdorf', $hash))
{
    echo 'Password is valid!';} else {
    echo 'Invalid password.';}


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 [2014-03-06 13:44 UTC] nikic@php.net
-Status: Open +Status: Not a bug
 [2014-03-06 13:44 UTC] nikic@php.net
"...$BCryptRequires22Chrcte..." will interpolate the value of the variable $BCryptRequires22Chrcte into the string. I would recommend to enable notices during development.
 [2014-03-06 14:29 UTC] pl dot lamballais at flashover dot fr
Agree with nikic, not really a bug.
Maybe a good thing will be to add a note about that on the doc. Because I notice that, depending on the hash, some are working with ' or "" and others not... :/
This means you can do your dev, test and if, unfortunatly the hash used for test are good even with ' or " you'll have some problems... later.
 
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