The RPC protocol implementation in Apache Hadoop 2.x before 2.0.6-alpha, 0.23.x before 0.23.9, and 1.x before 1.2.1, when the Kerberos security features are enabled, allows man-in-the-middle attackers to disable bidirectional authentication and obtain sensitive information by forcing a downgrade to simple authentication.
References
- https://nvd.nist.gov/vuln/detail/CVE-2013-2192
- https://www.cloudera.com/documentation/other/security-bulletins/topics/csb_topic_1.html
- http://rhn.redhat.com/errata/RHSA-2014-0037.html
- http://rhn.redhat.com/errata/RHSA-2014-0400.html
- http://seclists.org/fulldisclosure/2013/Aug/251
- https://github.com/advisories/GHSA-pxv5-5vmp-3jj4