EMC Cloud Tiering Appliance (CTA) 10 through SP1 allows remote attackers to read arbitrary files via an api/login request containing an XML external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue, as demonstrated by reading the /etc/shadow file.
https://gist.github.com/brandonprry/9895721
http://seclists.org/fulldisclosure/2014/Mar/426
http://archives.neohapsis.com/archives/bugtraq/2014-04/0094.html