Missing authorization issue for domain admins in CloudStack's host tags listing functionality.

Domain Admins, by default, have permission to call the listHostTags API, but the API returns host tags for every host in the environment without domain scoping. It should instead be restricted to only the hosts dedicated to that admin's domain.

This issue affects Apache CloudStack: from 4.12.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.

Users are recommended to upgrade to version 4.20.3.1 or 4.22.1.1 or later, which fixes the issue.

The virtual router in Apache CloudStack before 4.2.1 does not preserve the source restrictions in firewall rules after being restarted, which allows remote attackers to bypass intended restrictions via a request.

Apache CloudStack 4.0.0-incubating and Citrix CloudPlatform (formerly Citrix CloudStack) before 3.0.6 stores sensitive information in the log4j.conf log file, which allows local users to obtain (1) the SSH private key as recorded by the createSSHKeyPair API, (2) the password of an added host as recorded by the AddHost API, or the password of an added VM as recorded by the (3) DeployVM or (4) ResetPasswordForVM API.