GHSA-9R7G-325H-MXRM Improper Authentication in Apache Hadoop

Apache Hadoop 0.23.x before 0.23.11 and 2.x before 2.4.1, as used in Cloudera CDH 5.0.x before 5.0.2, do not check authorization for the 1 refreshNamenodes, 2 deleteBlockPool, and 3 shutdownDatanode HDFS admin commands, which allows remote authenticated users to cause a denial of service DataNode...