Eduardo Aguinaga created CASSANDRA-12309:
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Summary: Use of Dynamic Class Loading, Use of
Externally-Controlled Input to Select Classes or Code
Key: CASSANDRA-12309
URL: https://issues.apache.org/jira/browse/CASSANDRA-12309
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:
Dynamically loaded code has the potential to be malicious. The application uses
external input to select which classes or code to use, but it does not
sufficiently prevent the input from selecting improper classes or code.
The snippet below shows the issue on line 588.
CqlConfigHelper.java, lines 584-605:
{code:java}
584 private static AuthProvider getClientAuthProvider(String factoryClassName,
Configuration conf)
585 {
586 try
587 {
588 Class<?> c = Class.forName(factoryClassName);
589 if (PlainTextAuthProvider.class.equals(c))
590 {
591 String username = getStringSetting(USERNAME, conf).or("");
592 String password = getStringSetting(PASSWORD, conf).or("");
593 return (AuthProvider) c.getConstructor(String.class,
String.class)
594 .newInstance(username, password);
595 }
596 else
597 {
598 return (AuthProvider) c.newInstance();
599 }
600 }
601 catch (Exception e)
602 {
603 throw new RuntimeException("Failed to instantiate auth provider:" +
factoryClassName, e);
604 }
605 }
{code}
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