Implement proper input sanitization to prevent LDAP injection attacks #153
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This patch sanitizes the
usernameinput by replacing unsafe characters with their ASCII HEX representation. This is necessary to counteract potential injections of malicious statements into the LDAP search query constructed by the plugin.Table of unsafe characters and their replacements:
References:
https://datatracker.ietf.org/doc/html/rfc4515#section-3
https://cheatsheetseries.owasp.org/cheatsheets/LDAP_Injection_Prevention_Cheat_Sheet.html#search-filter-escaping