A configuration issue was addressed with additional restrictions. This issue affected versions prior to macOS X El Capitan 10.11.6 Security Update 2018-002, macOS Sierra 10.12.6 Security Update 2018-002, macOS High Sierra 10.13.2.Referenceshttps://support.apple.com/kb/HT208331https://support.apple.com/kb/HT208692
