Re: R: [users@httpd] CVE-2013-2566

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That configuration looks to me like it says NOT CBC or MD5. Can you confirm whether the server is actually accepting CBC or MD5 ciphers?
A tool like https://www.ssllabs.com/ssltest/index.html can tell you if your server is publicly accessible.

- Y

Sent from a gizmo with a very small keyboard and hyperactive autocorrect.

On Jan 20, 2014 7:30 AM, "Vorazzo Manuela" <manuela.vorazzo@xxxxxx> wrote:
We originally configured Apache with this directive:

SSLCipherSuite RC4-SHA

Then, then when the network scan found  the vulnerability, we modify with this

SSLCipherSuite ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+3DES:DH+3DES:RSA+AES:RSA+3DES:!ADH:!AECDH:!MD5:!DSS:!DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA

But now we have CBC and for the security requirements we have to delete RC4, CBC, and MD5 and probably other ciphers that I can't' remember.

Have you any suggestion in order to configure SSLCipherSuite to be compliant to CVE-2013-2566


Thanks in advance.


Manuela Vorazzo


-----Messaggio originale-----
Da: Eric Covener [mailto:covener@xxxxxxxxx]
Inviato: lunedì 20 gennaio 2014 13:10
A: users@xxxxxxxxxxxxxxxx
Oggetto: Re: CVE-2013-2566

> The RC4 algorithm, as used in the TLS protocol and SSL protocol, has
> many s= ingle-byte biases, which makes it easier for remote attackers
> to conduct pl= aintext-recovery attacks via statistical analysis of
> ciphertext in a large = number of sessions that use the same plaintext.

http://httpd.apache.org/security_report.html

You can configure Apache to not use RC4.

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