EC2 Amazon Machine Image (AMI) in JBoss Enterprise Application Platform (EAP) 5.1.2 uses 755 permissions for /var/cache/jboss-ec2-eap/, which allows local users to read sensitive information such as Amazon Web Services (AWS) credentials by reading files in the directory.
https://exchange.xforce.ibmcloud.com/vulnerabilities/79398
http://www.securityfocus.com/bid/55945