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https://issues.apache.org/jira/browse/CASSANDRA-19734?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17864363#comment-17864363
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Stefan Miklosovic commented on CASSANDRA-19734:
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I think this is becoming quite a big issue which would most probably deserved
its CEP. A lot of things going on here ...
> Rate limiting per-node on failed log-in attempts
> ------------------------------------------------
>
> Key: CASSANDRA-19734
> URL: https://issues.apache.org/jira/browse/CASSANDRA-19734
> Project: Cassandra
> Issue Type: New Feature
> Components: CQL/Syntax, Feature/Authorization
> Reporter: Stefan Miklosovic
> Assignee: Stefan Miklosovic
> Priority: Normal
> Fix For: 5.x
>
>
> If there is a malicious attacker who is brute-forcing passwords / usernames,
> we should just ban such user for some time. On the other hand, we should
> enable logging in for genuine users who just happened to provide invalid
> passwords for multiple times, we do not want to ban these completely.
> A rate limit might be something like "5 times per a minute".
> This should be based on IP address of a client to identify the attacker. If
> we based this on invalid passwords only, an attacker might just change the
> usernames to bypass that.
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