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Test Your SSL Server Now! SSL Labs

 
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Steffen
Moderator


Joined: 15 Oct 2005
Posts: 2574
Location: Hilversum, NL, EU

PostPosted: Tue 13 Jul '10 21:18    Post subject: Test Your SSL Server Now! SSL Labs Reply with quote

Ivan Ristic (mod_security author) has a fantastic tool on his site to test your SSL configuration.

Go to http://www.ssllabs.com , at the bottom enter your domain name for a detailed security assessment of your SSL server.


Steffen
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James Blond
Moderator


Joined: 19 Jan 2006
Posts: 6238
Location: Germany, Next to Hamburg

PostPosted: Tue 13 Jul '10 22:12    Post subject: Reply with quote

I made that test. It tells me that I use insecure SSL 2.0. How can I turn that off in httpd.conf? Yepp I'm to lazy for RTFM Wink
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glsmith
Moderator


Joined: 16 Oct 2007
Posts: 2121
Location: Sun Diego, USA

PostPosted: Tue 13 Jul '10 22:20    Post subject: Reply with quote

SSLProtocol all -SSLv2

Edit:

Actually, if you are speaking of this one:
SSL 2.0+ Upgrade Support

The only way to remove it is to disable sslv3 as well.
SSLProtocol +TLSv1

Doing that and removing DES cipher during my new OSSL build, I have been able to achieve a overall score of 90.

My first score was a 76, second (DES removed) was 85, now a 90. I wonder what clients are around that are not compatible with this setup. Should I even care becomes the next question.

This test is a Kobayashi Maru as it seems impossible to get a 100 today cause as far as I know TLS/1.2 is nothing more than theory at this time. TLS1.1 will be in OSSL 1.0.1 IIRC, that still leaves the server unable to get a 100.

Edit 2:

Doing this actually changed the PCI Complaint flag from No to Yes


Last edited by glsmith on Wed 14 Jul '10 3:05; edited 1 time in total
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James Blond
Moderator


Joined: 19 Jan 2006
Posts: 6238
Location: Germany, Next to Hamburg

PostPosted: Thu 22 Jul '10 21:05    Post subject: Reply with quote

I wonder how you could get such a good result. My first try today with startcom certs is by 61 point.

Since you know the Kobayashi Maru test, you must have seen Star Trek Wink
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Steffen
Moderator


Joined: 15 Oct 2005
Posts: 2574
Location: Hilversum, NL, EU

PostPosted: Thu 22 Jul '10 21:16    Post subject: Reply with quote

First I had a very bad score with a self-signed certificate.

I installed a certificate from https://www.startssl.com/ and now A88.

I changed also my strings in my httpd-ssl.conf to:

SSLProtocol all -SSLv2
SSLCipherSuite ALL:!ADH:!EXPORT:!SSLv2:RC4+RSA:+HIGH:+MEDIUM:!aNULL:!LOW

Try that strings, if you have a bad score.

Btw: startssl (startcom) is very cheap for ~39 Euro you have a wildcard/multidomain certicate for 2 years.

Steffen
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James Blond
Moderator


Joined: 19 Jan 2006
Posts: 6238
Location: Germany, Next to Hamburg

PostPosted: Thu 22 Jul '10 23:13    Post subject: Reply with quote

Indeed! I forgot this Embarassed

Code:

SSLCipherSuite ALL:!ADH:!EXPORT:!SSLv2:RC4+RSA:+HIGH:+MEDIUM
SSLCertificateChainFile /path/to/sub.class1.server.ca.pem
SSLCACertificateFile /path/to/ca.pem



So now it is 79 points

Only the Cipher Strength still laggs with 60 points. I guess I have to compile SSL maybe again, but I don't know if that is so clever. As Gregg mentioned which client will be compatible with such an encryption?

OK adding
Code:

SSLCipherSuite ALL:!aNULL:!ADH:!eNULL:!LOW:!EXP:RC4+RSA:+HIGH:+MEDIUM


Than I have 91 points, without recompiling OSSL
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glsmith
Moderator


Joined: 16 Oct 2007
Posts: 2121
Location: Sun Diego, USA

PostPosted: Fri 23 Jul '10 2:20    Post subject: Reply with quote

3 words ... I Love StartSSL!
Been using their class 1s for years now, even when IE didn't like them.

Edit:7-23-10

I just stumbled onto this ... vague in a sense but interesting
Overclocking SSL
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James Blond
Moderator


Joined: 19 Jan 2006
Posts: 6238
Location: Germany, Next to Hamburg

PostPosted: Sat 24 Jul '10 10:27    Post subject: Reply with quote

I wonder that he prefers 128 bit RC4 to the AES 256 bit. Ok he told that it is 3 times faster. Is there any benchmark?
Bad that some parts are only for apache 2.3
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glsmith
Moderator


Joined: 16 Oct 2007
Posts: 2121
Location: Sun Diego, USA

PostPosted: Sat 24 Jul '10 22:24    Post subject: Reply with quote

I'd imagine abs.exe for the benchmark.
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k.anderson3454



Joined: 24 Dec 2010
Posts: 1

PostPosted: Fri 24 Dec '10 3:47    Post subject: Reply with quote

This is complicated.
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kitteh



Joined: 22 Sep 2011
Posts: 2

PostPosted: Fri 23 Sep '11 2:25    Post subject: Reply with quote

hey, this is a nice tool Smile I got an 85 when I ran my site (it gave me an A that must not be too bad!)
Looks like my weakest area was the "Key Exchange" but it doesn't say anything else about it in the details, is there something I can do to improve that aspect?


Last edited by kitteh on Tue 03 Jan '12 17:18; edited 1 time in total
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James Blond
Moderator


Joined: 19 Jan 2006
Posts: 6238
Location: Germany, Next to Hamburg

PostPosted: Fri 23 Sep '11 11:17    Post subject: Reply with quote

If you create a key, make sure that your key size is 4096 and not 2048.
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west



Joined: 29 Nov 2011
Posts: 1
Location: Romania

PostPosted: Tue 29 Nov '11 1:32    Post subject: Reply with quote

Doing this actually changed the PCI Complaint flag from No to Yes
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