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https://issues.apache.org/jira/browse/HADOOP-12668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15126625#comment-15126625
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Zhe Zhang commented on HADOOP-12668:
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I added a break point and printed the values in {{availableCiphers}}. I think
the main point of the unit test is to verify that once we add one of the below
to {{excludeCiphers}}, they won't appear in {{availableCiphers}} anymore. Then
we know the added config knob is taking effect.
{code}
0 = "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA"
1 = "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA"
2 = "TLS_RSA_WITH_AES_128_CBC_SHA"
3 = "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA"
4 = "TLS_ECDH_RSA_WITH_AES_128_CBC_SHA"
5 = "TLS_DHE_RSA_WITH_AES_128_CBC_SHA"
6 = "TLS_DHE_DSS_WITH_AES_128_CBC_SHA"
7 = "TLS_ECDHE_ECDSA_WITH_RC4_128_SHA"
8 = "TLS_ECDHE_RSA_WITH_RC4_128_SHA"
9 = "SSL_RSA_WITH_RC4_128_SHA"
10 = "TLS_ECDH_ECDSA_WITH_RC4_128_SHA"
11 = "TLS_ECDH_RSA_WITH_RC4_128_SHA"
12 = "TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA"
13 = "TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA"
14 = "SSL_RSA_WITH_3DES_EDE_CBC_SHA"
15 = "TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA"
16 = "TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA"
17 = "SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA"
18 = "SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA"
19 = "SSL_RSA_WITH_RC4_128_MD5"
20 = "TLS_EMPTY_RENEGOTIATION_INFO_SCSV"
{code}
> Modify HDFS embeded jetty server logic in HttpServer2.java to exclude weak
> Ciphers through ssl-server.conf
> ----------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-12668
> URL: https://issues.apache.org/jira/browse/HADOOP-12668
> Project: Hadoop Common
> Issue Type: Improvement
> Components: security
> Affects Versions: 2.7.1
> Reporter: Vijay Singh
> Assignee: Vijay Singh
> Priority: Critical
> Labels: common, ha, hadoop, hdfs, security
> Attachments: Hadoop-12668.006.patch, Hadoop-12668.007.patch, test.log
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> Currently Embeded jetty Server used across all hadoop services is configured
> through ssl-server.xml file from their respective configuration section.
> However, the SSL/TLS protocol being used for this jetty servers can be
> downgraded to weak cipher suites. This code changes aims to add following
> functionality:
> 1) Add logic in hadoop common (HttpServer2.java and associated interfaces) to
> spawn jetty servers with ability to exclude weak cipher suites. I propose we
> make this though ssl-server.xml and hence each service can choose to disable
> specific ciphers.
> 2) Modify DFSUtil.java used by HDFS code to supply new parameter
> ssl.server.exclude.cipher.list for hadoop-common code, so it can exclude the
> ciphers supplied through this key.
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