Description
HDFS clients interact with a servlet on the DataNode to browse the HDFS namespace. The NameNode is provided as a query parameter that is not validated in Apache Hadoop before 2.7.0.
Remediation
References
http://www.securityfocus.com/bid/98017
https://lists.apache.org/thread.html/r127f75748fcabc63bc5a1bec6885753eb9b2bed803b6ed7bd46f965b%40%3Cuser.hadoop.apache.org%3E
https://lists.apache.org/thread.html/r66de86b9a608c1da70b2d27d765c11ec88edf6e5dd6f379ab33e072a%40%3Cuser.flink.apache.org%3E
https://s.apache.org/k2ss
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