CISA Protection of Information Assets Practice Question
During a firewall rule review, an IS auditor identifies several rules that allow any-to-any traffic. Which THREE of the following should the auditor recommend as the MOST appropriate actions?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Obtain business justification for each any-to-any rule
Overly permissive rules should be reviewed to determine if they are needed, and if so, should be tightened. If no business justification exists, they should be removed. If needed, they should be replaced with specific rules.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Obtain business justification for each any-to-any rule
Why this is correct
Understanding why the rule exists is the first step.
- ✓
Replace any-to-any rules with specific source/destination rules
Why this is correct
Specific rules reduce the attack surface.
- ✗
Immediately delete all any-to-any rules without review
Why it's wrong here
Deleting without review could disrupt business operations.
- ✗
Increase logging for any-to-any rules to detect misuse
Why it's wrong here
Logging does not reduce risk; it only detects.
- ✓
Remove any-to-any rules that lack business justification
Why this is correct
Unjustified rules should be eliminated.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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