The correct answer is that iam:PassRole could allow privilege escalation if the role passes a role with more permissions to an EC2 instance. This is because iam:PassRole grants a user or service the ability to attach an existing IAM role to an AWS resource, such as an EC2 instance, without needing permission to modify the role itself. If the user passes a role that has broader permissions than intended—for example, an administrator role—they can launch an EC2 instance with that role and then access AWS services at that elevated privilege level, effectively bypassing their own restrictions. On the AWS Certified Security Specialty SCS-C02 exam, this concept tests your understanding of the IAM PassRole security risk as a common privilege escalation vector, often appearing in scenario-based questions where a principal has PassRole on a high-privilege role but lacks direct access to it. A common trap is confusing PassRole with iam:CreateRole or iam:PutRolePolicy; remember that PassRole is about delegation, not creation. Memory tip: “Pass the role, escalate the control.”
SCS-C02 Identity and Access Management Practice Question
This SCS-C02 practice question tests your understanding of identity and access management. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A security auditor notices that an IAM role has a policy that grants 'iam:PassRole' to a specific EC2 instance profile. What is the security implication of this permission?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
It could allow privilege escalation if the role passes a role with more permissions to an EC2 instance.
Option B is correct because iam:PassRole allows passing a role to an AWS service, which could lead to privilege escalation if the role has more permissions than intended. Option A is wrong because it's not about changing policies. Option C is wrong because it's not about creating users. Option D is wrong because it's not about deleting roles.
Key principle: Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
It could allow privilege escalation if the role passes a role with more permissions to an EC2 instance.
Why this is correct
iam:PassRole can be misused to grant higher privileges to EC2 instances.
Related concept
Authentication checks who the user is.
✗
It allows the role to delete IAM roles.
Why it's wrong here
iam:PassRole does not cover deletion.
✗
It allows the role to create new IAM policies.
Why it's wrong here
iam:PassRole is about passing roles to services, not creating policies.
✗
It allows the role to create new IAM users.
Why it's wrong here
iam:PassRole does not cover user creation.
Common exam traps
Common exam trap: authentication is not authorization
Logging in proves the user can authenticate. It does not automatically mean the user is allowed to enter privileged or configuration mode. Watch for AAA authorization, privilege level and command authorization details.
Detailed technical explanation
How to think about this question
This kind of question is testing the difference between identity and permission. A user may successfully log in to a router because authentication is working, but still fail to enter configuration mode because authorization is missing, misconfigured or mapped to a lower privilege level.
KKey Concepts to Remember
Authentication checks who the user is.
Authorization controls what the user is allowed to do after login.
Privilege levels affect access to EXEC and configuration commands.
AAA, TACACS+ and RADIUS can separate login success from command access.
TExam Day Tips
→Do not assume successful login means full administrative access.
→Look for words such as cannot enter configuration mode, privilege level, authorization or command access.
→Separate login problems from permission problems before choosing the answer.
Key takeaway
Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related SCS-C02 questions on access control and AAA configuration.
Identity and Access Management — This question tests Identity and Access Management — Authentication checks who the user is..
What is the correct answer to this question?
The correct answer is: It could allow privilege escalation if the role passes a role with more permissions to an EC2 instance. — Option B is correct because iam:PassRole allows passing a role to an AWS service, which could lead to privilege escalation if the role has more permissions than intended. Option A is wrong because it's not about changing policies. Option C is wrong because it's not about creating users. Option D is wrong because it's not about deleting roles.
What should I do if I get this SCS-C02 question wrong?
Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related SCS-C02 questions on access control and AAA configuration.
What is the key concept behind this question?
Authentication checks who the user is.
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Question Discussion
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