Does using SealedObjects in Java secure against serialization vunerability?

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Does using SealedObjects in Java secure against serialization vunerability?



I understand that Java serialization poses a security risk. Would sealing objects in Java mitigate against this risk? If so, any reason not to use object sealing instead of insecure serialization?




1 Answer
1



No, not on its own. The serialised stream could contain any object, not just javax.crypto.SealedObject. You'd still need the new "whitelist" feature.


javax.crypto.SealedObject



A much better approach is to secure the entire stream. And then use a different protocol to Java Serialisation without all the magic. Or where possible, just pass a token instead of the data itself.






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