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https://issues.apache.org/jira/browse/CASSANDRA-19734?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17860897#comment-17860897
]
Michael Semb Wever commented on CASSANDRA-19734:
------------------------------------------------
Per IP rate-limiting should be optional.
It is important that roles can over the settings, because by nature different
roles have different security levels.
Settings I imagine would be like
```
authentication_max_attempts=3
authentication_max_attempts_window=1h
authentication_max_attempts_per_ip=true
```
and
```
CREATE ROLE test WITH LOGIN = true AND PASSWORD = 'test'
... AND OPTIONS = {'authentication_max_attempts': 1 };
```
You would also want to be able to disable the rate-limiter on a role (e.g.
setting authentication_max_attempts=0).
It would also make sense to reset the rate limiter's window when the rate limit
was hit (e.g. 3 failed attempts lead to the account being locked for one hour).
> Rate limiting on failed log-in attempts
> ---------------------------------------
>
> Key: CASSANDRA-19734
> URL: https://issues.apache.org/jira/browse/CASSANDRA-19734
> Project: Cassandra
> Issue Type: New Feature
> Reporter: Stefan Miklosovic
> Assignee: Stefan Miklosovic
> Priority: Normal
>
> 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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