hardMultiple ChoiceObjective-mapped
CCSP Practice Question: Is reviewing an S3 bucket policy that grants…
A security engineer is reviewing an S3 bucket policy that grants 's3:GetObject' access to 'Principal: *' and 'Condition: {IpAddress: {aws:SourceIp: ["1.2.3.4/32"]}}'. Despite the IP restriction, why is this policy still considered risky?
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
✓
The bucket is still exposed to anyone who can spoof that IP
The policy grants public access to a specific IP, but if that IP is compromised or the condition is misconfigured, it can lead to data exposure; additionally, the bucket policy may override other controls.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The policy uses 'GetObject' instead of 'ListBucket'
Why it's wrong here
The action is appropriate, but the risk is about public access.
- ✗
The IP address is not properly masked
Why it's wrong here
The IP is specific, but the risk is broader than masking.
- ✓
The bucket is still exposed to anyone who can spoof that IP
Why this is correct
If an attacker can spoof the allowed IP, they can access the bucket; also, the policy allows the principal '*' which is public.
- ✗
The condition uses 'aws:SourceIp' which is deprecated
Why it's wrong here
'aws:SourceIp' is valid; the issue is the public principal.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CCSP practice question is part of Courseiva's free ISC2 certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CCSP exam.