CODEWITHSUNDEEP
javasecurityssljetty
Atul Soman
Atul Soman

Reputation: 4720

How to disable the SSLv3 protocol in Jetty to prevent Poodle Attack

Is there any specific exclusion list available which disables only SSLv3 ciphers are not TLSv1/2.

I have jetty 8, and upgrading to 9 is not an option now. My current jetty-ssl.xml looks as follows

<Configure id="Server" class="org.eclipse.jetty.server.Server">
<Call name="addConnector">
    <Arg>
        <New class="org.eclipse.jetty.server.ssl.SslSelectChannelConnector">
            <Arg>
                <New class="org.eclipse.jetty.http.ssl.SslContextFactory">
                    .........
                </New>
            </Arg>
            <Set name="ExcludeCipherSuites">
                <Array type="java.lang.String">             
                <Item>SSL_RSA_WITH_NULL_MD5</Item>
                <Item>SSL_RSA_WITH_NULL_SHA</Item>
                <Item>SSL_RSA_EXPORT_WITH_RC4_40_MD5</Item>
                <Item>SSL_RSA_WITH_RC4_128_MD5</Item>
                <Item>SSL_RSA_WITH_RC4_128_SHA</Item>
                <Item>SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5</Item>
                <Item>SSL_RSA_WITH_IDEA_CBC_SHA</Item>
                <Item>SSL_RSA_EXPORT_WITH_DES40_CBC_SHA</Item>
                <Item>SSL_RSA_WITH_DES_CBC_SHA</Item>
                <Item>SSL_RSA_WITH_3DES_EDE_CBC_SHA</Item>
                <Item>SSL_DH_DSS_EXPORT_WITH_DES40_CBC_SHA</Item>
                <Item>SSL_DH_DSS_WITH_DES_CBC_SHA</Item>
                <Item>SSL_DH_DSS_WITH_3DES_EDE_CBC_SHA</Item>
                <Item>SSL_DH_RSA_EXPORT_WITH_DES40_CBC_SHA</Item>
                <Item>SSL_DH_RSA_WITH_DES_CBC_SHA</Item>
                <Item>SSL_DH_RSA_WITH_3DES_EDE_CBC_SHA</Item>
                <Item>SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA</Item>
                <Item>SSL_DHE_DSS_WITH_DES_CBC_SHA</Item>
                <Item>SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA</Item>
                <Item>SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA</Item>
                <Item>SSL_DHE_RSA_WITH_DES_CBC_SHA</Item>
                <Item>SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA</Item>
                <Item>SSL_DH_anon_EXPORT_WITH_RC4_40_MD5</Item>
                <Item>SSL_DH_anon_WITH_RC4_128_MD5</Item>
                <Item>SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA</Item>
                <Item>SSL_DH_anon_WITH_DES_CBC_SHA</Item>
                <Item>SSL_DH_anon_WITH_3DES_EDE_CBC_SHA</Item>
                <Item>SSL_FORTEZZA_KEA_WITH_NULL_SHA</Item>
                <Item>SSL_FORTEZZA_KEA_WITH_FORTEZZA_CBC_SHA</Item>
                <Item>SSL_FORTEZZA_KEA_WITH_RC4_128_SHA</Item>
                <Item>SSL_DHE_RSA_WITH_AES_128_CBC_SHA</Item>
                <Item>SSL_RSA_WITH_AES_128_CBC_SHA</Item>   
                </Array>
            </Set>
        </New>
    </Arg>
</Call>

still when i run "sslscan --no-failed --ssl3 localhost:443" i get

    Supported Server Cipher(s):
  Accepted  SSLv3  128 bits  DHE-RSA-AES128-SHA
  Accepted  SSLv3  128 bits  AES128-SHA

Prefered Server Cipher(s):
  SSLv3  128 bits  DHE-RSA-AES128-SHA

Upvotes: 19

Views: 19991

Answers (3)

user2918934
user2918934

Reputation: 11

I have configurated Jetty 8.1 whitout ssl3. You can see the complete structure of jetty-ssl.xml.


    <Configure id="Server" class="org.eclipse.jetty.server.Server">
        <Call name="addConnector">
         <Arg>
           <New class="org.eclipse.jetty.server.ssl.SslSelectChannelConnector">
             <Arg>
               <New class="org.eclipse.jetty.http.ssl.SslContextFactory">
                 <Set name="keyStore">... </Set>    
                 <Set name="keyStorePassword">... </Set>
                 <Set name="keyManagerPassword">... </Set>
                 <Set name="trustStore">... </Set>
                 <Set name="trustStorePassword>... </Set
                 <Set name="ExcludeProtocols">
                  <Array type="java.lang.String">
                     <Item>SSLv3 </Item>
                  </Array>
                </Set>
               </New>
             </Arg>
             <Set name="port">... </Set>
             <Set name="maxIdleTime">... </Set>
           </New>
         </Arg>
       </Call>
    </Configure>

Upvotes: 0

Joakim Erdfelt
Joakim Erdfelt

Reputation: 49462

To expand on @Lars answer ..

For Jetty 7, Jetty 8, and Jetty 9 you have to exclude the protocol SSLv3 (not the cipher) on any SslContextFactory you are using to configure for an SSL based Connector.

For a Jetty Distribution

Edit the ${jetty.home}/etc/jetty-ssl.xml and add the following XML snippet.

<Set name="ExcludeProtocols">
  <Array type="java.lang.String">
     <Item>SSLv3</Item>
  </Array>
</Set>

Inside of any element that manages a org.eclipse.jetty.http.ssl.SslContextFactory

For Jetty Embedded

Any SslContextFactory you create/manage for your SSL based Connectors you just need to set the excluded protocols.

    SslContextFactory sslContextFactory = new SslContextFactory();
    sslContextFactory.addExcludeProtocols("SSLv3");
    sslContextFactory.setKeyStorePath(...);
    ...

Upvotes: 4

Lars
Lars

Reputation: 636

I had to disable SSLv3 in an application where we integrate Jetty source code. Based on what I changed in code, I would guess you add the following:

<Set name="ExcludeProtocols">
    <Array type="java.lang.String">             
       <Item>SSLv3</Item>
    </Array>
</Set>

Give it a shot and let me know if it works for you.

Upvotes: 13

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