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https://issues.apache.org/jira/browse/METRON-984?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jon Zeolla updated METRON-984:
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When performing a function over attacker controlled data I would consider
it required to do some sort of valuation first. Maybe we compare a
statistical sample of the data against a whitelist based on the encoding,
and make it tunable so users could do 100% of the text if they want?
Sounds overly complicated to me though.
Jon
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Jon
> Create Stellar Decoding Functions
> ---------------------------------
>
> Key: METRON-984
> URL: https://issues.apache.org/jira/browse/METRON-984
> Project: Metron
> Issue Type: Improvement
> Reporter: Jon Zeolla
> Assignee: Otto Fowler
>
> It is rather commonplace for malicious actors to obfuscate exploits or data
> transfers using encoding. In order to identify and prioritize responses to
> (or automatically mitigate) those attacks during threat triage we should have
> a method for decoding in Stellar. Some initial thoughts would be to handle
> percent/URL encoding, base64, base32, base16/hex, HTML encoding, etc.
> I would expect that something like DECODE(something, encoding_type,
> optional_failure_mode) would return the contents of field "something" after
> attempting to decode it via "encoding_type". If decoding fails,
> optional_failure_mode would indicate whether or not to fail the message and
> send it to the error topology, or to simply return the contents of the
> original field "something" (in this example).
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