Description
Incorrect credential validation in LemonLDAP::NG 2.18.x and 2.19.x before 2.19.2 allows attackers to bypass OAuth2 client authentication via an empty client_password parameter (client secret).
References
https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/tags
https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/3223
https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/commit/06d771cbc2d5c752354c50f83e4912e5879f9aa2
https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/commit/236cdfe42c1dc04a15a4a40c5e6a8c2e858d71d7
https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/commit/696f49a0855faeb271096dccb8381e2129687c3d