ownCloud 'files_external' RSA Key Validation Information Disclosure Vulnerability

Summary
The host is installed with ownCloud and is prone to information disclosure vulnerability.
Impact
Successful exploitation will allow remote attackers to conduct man-in-the-middle attack and spoof a valid host key bypassing authentication. Impact Level: Application
Solution
Upgrade to ownCloud Server 6.0.5 or later. For updates refer to http://owncloud.org
Insight
The error exists due to error in the SFTP external storage driver that is triggered as RSA Host Keys are verified after logging in.
Affected
ownCloud Server 6.x before 6.0.5
Detection
Get the installed version with the help of detect NVT and check the version is vulnerable or not.
References