Robert Muir e77027dd8c SOLR-13993: sandbox velocity template render (if security manager is enabled)
The solr permissions are weak sauce due to the huge number of features, third-party dependencies, etc.

Hence they have access to do many things. For "scripting" such as velocity we have to look at a more aggressive stance:

Step 1: Can we wrap a sandbox around the whole goddamn thing and call it a day?
Step 2: Let's separate the "engine" from "untrusted code" and only be an asshole to the latter.
Step 3: Java's security is shit, Lets contain that classloader and whitelist access.
2019-12-05 01:06:38 -05:00
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