Andrey Antukh 4ce459d720
🐛 Escape LDAP filter values and use directory email in retrieve-user (#11085)
Fix LDAP injection vulnerability (T5-N1-03) where the client-supplied email was used directly in the LDAP search filter without escaping RFC 4515 special characters (*, (, ), \, NUL), and the profile email was taken from client input instead of the LDAP directory attribute.

Changes:
- Add escape-ldap-filter-value per RFC 4515 section 3
- Apply escaping in search-user before building LDAP filter
- Add get-attr helper for multi-valued LDAP attributes
- Fix retrieve-user to use directory email (attrs-email) instead of client email
- Use cuerdas.core instead of clojure.string

Closes #11084

AI-assisted-by: mimo-v2.5-pro
2026-09-10 16:39:35 +02:00
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