The Accellion File Transfer Appliance (FTA) before FTA_9_12_40 allows remote authenticated users to execute arbitrary commands by leveraging the YUM_CLIENT restricted-user role.Referenceshttp://devco.re/blog/2016/04/21/how-I-hacked-facebook-and-found-someones-backdoor-script-eng-ver/http://www.kb.cert.org/vuls/id/505560
