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Re: SSL ciphers, disable or not to disable RC4?

nano
January 09, 2014 04:44AM
On 9/01/2014 8:29 PM, Pekka.Panula@sofor.fi wrote:
> Hi
>
> My current values in my nginx configuration for ssl_protocols/ciphers
> what i use is this:
>
> ssl_protocols SSLv3 TLSv1 TLSv1.1 TLSv1.2;
> ssl_ciphers RC4:HIGH:!aNULL:!MD5;
> ssl_prefer_server_ciphers on;
>
> What are todays recommendations for ssl_ciphers option for supporting
> all current OSes and browsers, even Windows XP users with IE?
> Can i disable RC4?
>
> My nginx is compiled with OpenSSL v1.0.1.
>
>
> _______________________________________________
> nginx mailing list
> nginx@nginx.org
> http://mailman.nginx.org/mailman/listinfo/nginx
>

The current consensus suggests that mitigating RC4 vulnerabilities is
more important than BEAST attack concerns, which are all but mitigated
client-side. If you want to deploy protocols to cater for a wide range
of browsers (including XP IE) implement the following (that will
fall-back to RC4 as a last resort):

ssl_ciphers EECDH+ECDSA+AESGCM EECDH+aRSA+AESGCM EECDH+ECDSA+SHA384
EECDH+ECDSA+SHA256 EECDH+aRSA+SHA384 EECDH+aRSA+SHA256 EECDH+aRSA+RC4
EECDH EDH+aRSA RC4 !aNULL !eNULL !LOW !3DES !MD5 !EXP !PSK !SRP !DSS
+RC4 RC4

Otherwise, exclude RC4 with the following:

ssl_ciphers EECDH+ECDSA+AESGCM EECDH+aRSA+AESGCM EECDH+ECDSA+SHA384
EECDH+ECDSA+SHA256 EECDH+aRSA+SHA384 EECDH+aRSA+SHA256 EECDH+aRSA+RC4
EECDH EDH+aRSA RC4 !aNULL !eNULL !LOW !3DES !MD5 !EXP !PSK !SRP !DSS !RC4


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Subject Author Posted

SSL ciphers, disable or not to disable RC4?

Anonymous User January 09, 2014 04:30AM

Re: SSL ciphers, disable or not to disable RC4?

nano January 09, 2014 04:44AM

Re: SSL ciphers, disable or not to disable RC4?

Jeffrey Walton January 09, 2014 04:54AM

RE: SSL ciphers, disable or not to disable RC4?

Lukas Tribus January 09, 2014 04:54AM

Re: SSL ciphers, disable or not to disable RC4?

Jeffrey Walton January 09, 2014 05:06AM

PHP below server root not served

nano January 09, 2014 05:26AM

Re: PHP below server root not served

Richard Stanway January 09, 2014 05:30AM

Re: PHP below server root not served

nano January 09, 2014 05:34AM

Re: PHP below server root not served

Francis Daly January 09, 2014 05:56AM

Re: PHP below server root not served

nano January 09, 2014 06:46AM

Re: PHP below server root not served

nano January 09, 2014 07:42AM

Re: PHP below server root not served

B.R. January 09, 2014 08:00AM

Re: PHP below server root not served

nano January 09, 2014 08:52AM

Re: PHP below server root not served

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Re: PHP below server root not served

nano January 09, 2014 10:08PM

Re: PHP below server root not served

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Re: PHP below server root not served

nano January 10, 2014 06:40AM

Re: PHP below server root not served

Francis Daly January 10, 2014 10:36AM

Re: PHP below server root not served

nano January 12, 2014 05:28AM

Re: PHP below server root not served

Francis Daly January 14, 2014 05:14PM

Re: PHP below server root not served

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Re: PHP below server root not served

nano January 10, 2014 04:38AM

Re: PHP below server root not served

nano January 09, 2014 09:44AM

Re: PHP below server root not served

Jim Ohlstein January 09, 2014 12:14PM

Re: PHP below server root not served

nano January 09, 2014 12:30PM

Re: SSL ciphers, disable or not to disable RC4?

Axel January 12, 2014 12:44PM

Re: SSL ciphers, disable or not to disable RC4?

Darren Pilgrim January 12, 2014 02:10PM

Re: SSL ciphers, disable or not to disable RC4?

Axel January 13, 2014 04:02AM



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