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https://issues.apache.org/jira/browse/DIRAPI-461?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Emmanuel Lécharny resolved DIRAPI-461.
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Resolution: Fixed
Foxed with commit df14f13698e70c3e9659493478050fca54065166
> Rdn.unescapeValue mis-decodes specials and silently drops invalid escapes
> -------------------------------------------------------------------------
>
> Key: DIRAPI-461
> URL: https://issues.apache.org/jira/browse/DIRAPI-461
> Project: Directory Client API
> Issue Type: Bug
> Affects Versions: 2.1.8
> Reporter: Emmanuel Lécharny
> Priority: Major
> Fix For: 2.1.9
>
>
> An application extracts the *CN* from a client-certificate subject *DN* and
> calls _Rdn.unescapeValue_ after validating the escaped text contains no
> forbidden name '_admin_'; the attacker presents *CN* text '_ad\\zmin_' or
> '_a\\4zdmin'_-shaped escapes — validation on the raw text finds no match, but
> _unescapeValue_ silently decodes into '_admin_' and the application
> authorizes the attacker.
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