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Prevent high resource usage when hashing large passwords. props mdawaffe, pento

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Merges [30466] to the 3.9 branch.

Built from https://develop.svn.wordpress.org/branches/3.9@30468


git-svn-id: http://core.svn.wordpress.org/branches/3.9@30459 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Andrew Nacin 2014-11-20 16:06:14 +00:00
parent 6f300d7d12
commit a067868b73
1 changed files with 8 additions and 0 deletions
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8
wp-includes/class-phpass.php
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@ -214,6 +214,10 @@ class PasswordHash {
function HashPassword($password) function HashPassword($password)
{ {
if ( strlen( $password ) > 4096 ) {
return '*';
}
$random = ''; $random = '';
if (CRYPT_BLOWFISH == 1 && !$this->portable_hashes) { if (CRYPT_BLOWFISH == 1 && !$this->portable_hashes) {
@ -249,6 +253,10 @@ class PasswordHash {
function CheckPassword($password, $stored_hash) function CheckPassword($password, $stored_hash)
{ {
if ( strlen( $password ) > 4096 ) {
return false;
}
$hash = $this->crypt_private($password, $stored_hash); $hash = $this->crypt_private($password, $stored_hash);
if ($hash[0] == '*') if ($hash[0] == '*')
$hash = crypt($password, $stored_hash); $hash = crypt($password, $stored_hash);