[jira] [Commented] (CASSANDRA-12310) Use of getByName() to retrieve IP address

["Tyler Hobbs (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-12310?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15394425#comment-15394425 ] 

Tyler Hobbs commented on CASSANDRA-12310:
-----------------------------------------

What alternatives or mitigating techniques do you suggest?

> Use of getByName() to retrieve IP address
> -----------------------------------------
>
>                 Key: CASSANDRA-12310
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12310
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Eduardo Aguinaga
>             Fix For: 3.0.5
>
>
> Overview:
> In May through June of 2016 a static analysis was performed on version 3.0.5 of the Cassandra source code. The analysis included an automated analysis using HP Fortify v4.21 SCA and a manual analysis utilizing SciTools Understand v4. The results of that analysis includes the issue below.
> Issue:
> There are many places in the Cassandra source code that rely upon a call to getByName() to retrieve an IP address. The information returned by getByName() is not trustworthy. Attackers can spoof DNS entries and depending on getByName alone invites DNS spoofing attacks.
> This is an example from the file DatabaseDescriptor.java where there are examples of the use of getByName() on line 193, 213, 233, 254, 947 and 949.
> {code:java}
> DatabaseDescriptor.java, lines 231-238:
> 231 try
> 232 {
> 233     rpcAddress = InetAddress.getByName(config.rpc_address);
> 234 }
> 235 catch (UnknownHostException e)
> 236 {
> 237     throw new ConfigurationException("Unknown host in rpc_address " + config.rpc_address, false);
> 238 }
> {code}



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