Flask-AppBuilder Has No Rate Limiting on Login AUTH DB

Impact

Lack of rate limiting will allow an attacker to brute-force user credentials.

Patches

Ability to enable rate limiting on Flask-AppBuilder >= 4.3.0. Use AUTH_RATE_LIMITED = True and RATELIMIT_ENABLED = True set the limit itself by using AUTH_RATE_LIMIT. Will apply only to database authentication.

Workarounds

Implement rate limiting using a reverse proxy or other strategies.