About this interactive
The Vulnerability Remediation lesson lists what gets in the way of fixing a flaw.
Cost: time, money and resources. A fix that needs new licenses, new hardware or paid work has to be sold to whoever controls the budget.
Business process interruption: applying the fix stops or disrupts work the business needs, such as taking a system down during busy hours.
Degraded functionality: the fix takes away a feature or capability people rely on, and it stays gone after the fix.
Legacy or proprietary system: the system cannot be updated, because it is old and no longer patched, or because its maker is gone or it has been customized so much that updates no longer apply.
The difference between interruption and degraded functionality is time: interruption is the work stopped while the fix goes in; degraded functionality is what is lost for good once it is in. The lesson also names agreements and compliance conflicts; those are left out of the cards because they overlap the other bins.
When a fix is stuck, the lesson's next step is a compensating control, or recategorizing the flaw if it does not really apply.
A quick test for each card: is the problem the bill, the downtime, what the fix takes away, or a system that cannot take the fix?
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