On Mon, Jul 29, 2013 at 11:51 AM, C. Scott Ananian cananian@wikimedia.orgwrote:
That ssllabs link also shows that wikimedia has RC4 encryption enabled on SSL connections, which offers no real security. This is apparently related to the TLS 1.0 -vs- TLS 1.1/1.2 issue:
https://community.qualys.com/blogs/securitylabs/2013/03/19/rc4-in-tls-is-bro... --scott
Well, you can either be vulnerable to BEAST or to the less practical attack against RC4. TLS 1.1/1.2 clients should choose the strongest cipher, while SSL3/TLS1 clients are sent a preferred server list, specifying RC4 first. See: http://wiki.nginx.org/HttpSslModule#ssl_prefer_server_ciphers.
- Ryan