Maybe it is the right moment to remind you of my idea that codebase annotations could be objects treated exactly the same as service proxies and verified with TrustVerifiers. Wouldn't it solve the problem?

Michal

On 2013-05-01 11:42, Peter Firmstone wrote:
Hmm, yes we actually need to completely avoid Serialization and RMI until we've authenticated the remote end, I've been thinking about developing a ServiceLocator, that can be constructed from a string, that isn't serializable, but allows a service connection to be authenticated, prior to downloading a service proxy.

A lookup service could return ServiceLocator's instead of Proxy's.

On 1/05/2013 5:52 AM, Gregg Wonderly wrote:
It's interesting, that after all of these years of remote codebase loading and all the associated security risks being openly discussed and Sun's Jini team trying to address those, with no support for the larger community (JSRs voted down), that this statement appears at the end of the announcement.

"Caution: Running a system with the java.rmi.server.useCodebaseOnly property set to false is not recommended, as it may allow the loading and execution of untrusted code."

Really? How could that be a problem? And is it really something that is only being realized now?

Gregg Wonderly

On Apr 30, 2013, at 6:53 AM, Dennis Reedy<dennis.re...@gmail.com> wrote:

FYI, this caused grief yesterday on my project. Some of the team had updated Java to JDK 7 Update 21. With this update the following change has been made:

The RMI property java.rmi.server.useCodebaseOnly is set to true by default. In earlier releases, the default value was false.

More detail here: http://docs.oracle.com/javase/7/docs/technotes/guides/rmi/enhancements-7.html

The simple fix for us is to set -Djava.rmi.server.useCodebaseOnly=false

HTH

Dennis




--
Michał Kłeczek
XPro Quality Matters
http://www.xpro.biz

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