OWASP Threat Dragon is a free, open-source, cross-platform threat modelling application including system diagramming and a threat rule engine to auto-generate threats/mitigations. The roadmap for the project is a simple UX, a powerful rule engine and integration with other development lifecycle tools.
The packages for RHEL 8 and RHEL 7 are in each distribution’s respective Extra Packages for Enterprise Linux (EPEL) repository. The instructions for adding this repository diverge slightly between RHEL 8 and RHEL 7, which is why they’re listed separately below.
The EPEL repository can be added to RHEL 8 with the following command: