FreeBSD : Hidden/Protected custom variables are prone to filter enumeration (4553e4b3-addf-11f0-9b8d-40a6b7c3b3b8)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 4553e4b3-addf-11f0-9b8d-40a6b7c3b3b8 advisory. Icinga reports: An authorized user with access to Icinga DB Web, can use a custom variable in a filter...