certificate – Phocean.net / Computer Security Blog Fri, 24 Feb 2017 21:17:51 +0000 en-US hourly 1 https://wordpress.org/?v=4.9.10 Updates on OpenSSL CVE-2009-3555 (client renegociation) /2010/04/05/updates-about-openssl-cve-2009-3555-client-renegociation.html /2010/04/05/updates-about-openssl-cve-2009-3555-client-renegociation.html#comments Mon, 05 Apr 2010 08:40:44 +0000 http://www.phocean.net/?p=773 http://www.phocean.net/?p=773 Continue Reading]]> So there are some news from the front of OpenSSL CVE-2009-3555 (see this and this for the history).

Now the latest version of Apache mod_ssl (2.2) embeds an option to reactivate old way client renegociation :

SSLInsecureRenegotiation on

Check the official doc for more details. With this option activated, you can now safely upgrade openSSL and mod_ssl without breaking your clients. They should have done it from the begining, shouldn’t they ?

The next step will be to move on to the new protocol definitely, to solve for good the CVE-2009-3555 vulnerability. For that we have to wait for the browsers to support it.

Firefox has started to work seriously on it and we can expect some support in the next releases (some settings will be possible through about:config).

They even created a test site. This screenshot was taken from Google Chrome (5.0.366.2, openSUSE repo) which already has support for the SSL protocol :

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