author details: John M. (j...@secureli.com)
homepage details: SECURELI.com
Description:
CVE-2014-9034 was published recently, highlighting an issue that “allows remote
attackers to cause a denial of service (CPU consumption) via a long password
that is improperly handled during hashing” due to phpass usage.
After reviewing the vulnerability, I have developed a proof-of-concept that
successfully performs a denial of service attack against
wp-includes/class-phpass.php in the affected version numbers:
before 3.7.5
3.8.x before 3.8.5
3.9.x before 3.9.3
4.x before 4.0.1
There is no other working code published out in the security world that allows
replicating the denial of service code, so this is an exclusive world premier.
:)
The proof of concept is developed in PHP and is available for download here:
http://secureli.com/wp-content/uploads/2014/11/secureli.com-wordpressed.php_.txt
-John
