4.1 Update the checklists of vulnerabilities

Based on the disaster scenarios that were described in Stage 1, you must describe the most common vulnerabilities of network components. Checklists are used for this. A checklist contains the name and description of the most common vulnerabilities. Good checklists make the analysis process faster and easier.

Create a fresh Raster project (see The Projects toolbar), and inspect the predefined checklist for each type (see Checklist windows). Add new vulnerabilities as deemed necessary. Include vulnerabilities that apply to most components of that type; omit vulnerabilities that only apply to a few components. The checklists do not have to be complete; any particular network component may have specific vulnerabilities that do not occur in the checklist. However, when the most common vulnerabilities are included in checklists, few special cases need to be considered.

Vulnerabilities can be natural or malicious. Natural vulnerabilities are unpredictable random events, sometimes caused by inattentiveness or other non-intentional human actions. Examples include fires, power failures, or equipment defects. Malicious vulnerabilities are bad-faith actions by people with the express purpose of causing harm, often exploiting weaknesses in the organisation’s defenses. Examples include theft and cybercrime. Natural and malicious vulnerabilities differ in their frequency and consequences.

There are three checklists, one each for equipment, wired and wireless links. For actor components no checklist exists. Vulnerabilities of actors are outside the scope of the Raster method. Also, unknown links do not have a separate checklist. They may contain any of the other component types, and therefore all vulnerabilities of the three checklists may apply to unknown links.

Vulnerabilities of actors are not taken into account. For example, Raster does not handle an actor misinterpreting a received message. However, configuration errors, incorrect handling of handsets or cyber crimes can be taken into account. These vulnerabilities are modelled in Raster as part of equipment components, not as part of the actor responsible for them. Maintenance personnel are not included in the diagrams as actors.