[-] Software Link:
[-] Affected Versions:
Version 2.6.2 and probably prior versions.
[-] Vulnerability Description:
The vulnerable code is located in the dcXmlRpc::setUser() method (inc/core/class.dc.xmlrpc.php):
The vulnerability exists because of the method not properly verifying the provided password before being used in a call to the dcAuth::checkUser() method at line 270. This could be exploited to bypass the authentication mechanism by sending an XML-RPC request with a valid username and an empty password. Successful exploitation of this vulnerability requires the XML-RPC interface to be enabled (disabled by default).
Update to version 2.6.3.
[-] Disclosure Timeline:
[14/05/2014] - Vendor notified [15/05/2014] - Vendor response [16/05/2014] - Version 2.6.3 released: http://dotclear.org/blog/post/2014/05/16/Dotclear-2.6.3 [16/05/2014] - CVE number requested [19/05/2014] - CVE number assigned [21/05/2014] - Public disclosure
[-] CVE Reference:
The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2014-3781 to this vulnerability.
Vulnerability discovered by Egidio Romano.
[-] Original Advisory: