We wanted to add the following information to our yesterday post.
We've learned that RedHat's Bugzilla associates CVE-2013-1537  with the RMI issue allowing for a remote loading and execution of arbitrary Java code on servers .
It looks that Oracle has finally patched RMI vulnerability that was known to the vendor since 2005. What's also interesting is that a fix for it is now highlighted by Oracle as a new security feature of Java .
We can't decide what is more surprising to us: 1) finding out that Oracle finally admitted that Java security issues could affect servers as well (so far the Plugin was the source of all evilness), 2) learning that at Oracle, "every developer is a security rifleman", "trained on security" .
Best Regards, Adam Gowdiak
Security Explorations http://www.security-explorations.com "We bring security research to the new level"
References:  CVE-2013-1537 OpenJDK: remote code loading enabled by default https://bugzilla.redhat.com/show_bug.cgi?id=952387  "Security Vulnerabilities in Java SE", technical report http://www.security-explorations.com/materials/se-2012-01-report.pdf  Java SE 7 Update 21 Release and more https://blogs.oracle.com/java/entry/java_se_7_update_21  Oracle Secures Java with 41 Updates, Code Signing