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Disable Anonymous Authentication for SSL
My PCI scan also caught this Vulnerability
SSL Server Allows Anonymous Authentication Vulnerability
The Secure Socket Layer (SSL) protocol allows for secure communication between a client and a server. The client usually authenticates the server using an algorithm like RSA or DSS. Some SSL ciphers allow SSL communication without authentication. Most common Web browsers like Microsoft Internet Explorer, Netscape and Mozilla do not use anonymous authentication ciphers by default. A vulnerability exists in SSL communications when clients are allowed to connect using no authentication algorithm. SSL client-server communication may use several different types of authentication: RSA, Diffie-Hellman, DSS or none. When 'none' is used, the communications are vulnerable to a man-in-the-middle attack.
I have changed the ciphers as follows ... solved the problem ...
OLD cipher : NATIVE:!SSLv3:!MD5:!EXPORT:!DES:!DHE:!EDH:!RC4:@SPEED
NEW cipher : NATIVE:!SSLv3:!MD5:!EXPORT:!DES:!DHE:!EDH:!RC4:!AES-GCM:@SPEED
Following website also let you know if its been disabled or not :
https://dev.ssllabs.com/ssltest/
More reading : https://security.stackexchange.com/questions/113535/what-are-the-use-cases-for-anonymous-ssl-cipher-suites
Thanks, mS
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