cPanel – WWWAcct Privilege Escalation Vulnerability (R911-0124)

Type: Privilege Escalation
Location: Remote
Impact: High
Product: cPanel
Website: http://www.cpanel.net
Vulnerable Version: All versions prior to the fixed builds below.
Fixed Version: 11.42.0.4, 11.40.1.10 & 11.38.2.16
CVE: -
R911: 0124
Date: 2014-02-05
By: Rack911

Product Description:

cPanel is an easy-to-use control panel that gives web hosts and the website owners they serve, the ability to quickly and easily manage their servers and websites. Web Host Manager (WHM) is a part of the
cPanel software, often used by resellers and system administrators.

Vulnerability Description:

It is possible for a reseller to take over any account on the server due to a privilege escalation security vulnerability within the wwwacct (new account) feature.

Impact:

We have deemed this vulnerability to be rated as HIGH due to the fact that any cPanel account can be effectively taken over.

Vulnerable Version:

This vulnerability was tested against cPanel 11.40.0 #19 and is believed to exist in all versions prior to the fixed builds below.

Fixed Version:

This vulnerability was patched in cPanel 11.42.0.4, 11.40.1.10 & 11.38.2.16

Vendor Contact Timeline:

2013-12-25: Vendor contacted via email.
2014-01-08: Vendor confirms vulnerability.
2014-02-03: Vendor issues updates to all builds.
2014-02-05: Rack911 issues security advisory.