Emmanuel Lécharny created DIRAPI-464:
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Summary: Stored-credential bcrypt work factor drives unbounded CPU
cost at bind
Key: DIRAPI-464
URL: https://issues.apache.org/jira/browse/DIRAPI-464
Project: Directory Client API
Issue Type: Bug
Affects Versions: 2.1.8
Reporter: Emmanuel Lécharny
Fix For: 2.1.9
An authenticated low-privilege user sets their own _userPassword_ to
'_\{CRYPT\}$2a$30$<22-char salt>..._' (a syntactically valid _bcrypt_ hash with
cost 30), then fires 16 concurrent binds to their own *DN* with garbage
passwords; each forces the authenticator through 2^30-round _bcrypt_, pinning
16 cores for hours and starving all directory operations.
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