Bertrand Delacretaz created SLING-5288:
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Summary: Restrict which classes can be deserialized
Key: SLING-5288
URL: https://issues.apache.org/jira/browse/SLING-5288
Project: Sling
Issue Type: Bug
Components: General
Reporter: Bertrand Delacretaz
To avoid a recently reported Java deserialization vulnerability [1], we should
restrict which classes are accepted when deserializing binaries.
I have created a prototype SafeObjectInputStream at [2], which refuses to
operate on classes that are outside a whitelist.
We probably also need a wrapper for ObjectInputStreams provided by the
environment, that looks a bit harder to create, for now we can already discuss
this prototype to see if we want to pursue the idea.
[1]
https://blogs.apache.org/foundation/entry/apache_commons_statement_to_widespread
[2]
https://svn.apache.org/repos/asf/sling/whiteboard/bdelacretaz/safe-object-input-stream
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