Harden HMAC verification. props duck_.

Built from https://develop.svn.wordpress.org/trunk@28053


git-svn-id: http://core.svn.wordpress.org/trunk@27883 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Andrew Nacin 2014-04-08 18:06:16 +00:00
parent 5fa5b037ec
commit 7f001bfe24

View File

@ -647,7 +647,7 @@ function wp_validate_auth_cookie($cookie = '', $scheme = '') {
$key = wp_hash($username . $pass_frag . '|' . $expiration, $scheme);
$hash = hash_hmac('md5', $username . '|' . $expiration, $key);
if ( $hmac != $hash ) {
if ( hash_hmac( 'md5', $hmac, $key ) !== hash_hmac( 'md5', $hash, $key ) ) {
/**
* Fires if a bad authentication cookie hash is encountered.
*