Eduardo Aguinaga created CASSANDRA-12327:
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             Summary: Use of getAllByName() to retrieve IP addresses
                 Key: CASSANDRA-12327
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12327
             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:
Use of getAllByName() to retrieve an IP addresses is not trustworthy. Attackers 
can spoof DNS entries.

The file LimitedLocalNodeFirstLocalBalancingPolicy.java calls getAllByName() on 
line 66.

LimitedLocalNodeFirstLocalBalancingPolicy.java, lines 64-72:
{code:java}
64 try
65 {
66     InetAddress[] addresses = InetAddress.getAllByName(replica);
67     Collections.addAll(replicaAddresses, addresses);
68 }
69 catch (UnknownHostException e)
70 {
71     logger.warn("Invalid replica host name: {}, skipping it", replica);
72 }
{code}



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