NSE7 Advanced VPN and Zero Trust Practice Question
A FortiGate is configured as a SAML service provider (SP) for user authentication. Users report they are redirected to the identity provider (IdP) for authentication, but after successful login, they are not allowed access to the requested resource. What is the MOST likely cause?
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 SAML user group is not configured with the correct IdP attribute mapping
After SAML authentication, the FortiGate must have a matching user group and firewall policy that allows traffic from authenticated users. If the IdP sends the correct attributes but the FortiGate does not have a group mapping or policy, access will be denied.
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 FortiGate is configured as an IdP instead of SP
Why it's wrong here
If it were IdP, the user would not be redirected to an external IdP; this symptom matches a misconfigured SP.
- ✗
SAML single logout is enabled and causing session termination
Why it's wrong here
SLO would terminate sessions after logout, not prevent initial access after login.
- ✗
The IdP certificate is not trusted by the FortiGate
Why it's wrong here
If the certificate were not trusted, the SAML assertion would fail and the user would not even get a redirect.
- ✓
The SAML user group is not configured with the correct IdP attribute mapping
Why this is correct
Without proper group mapping, the FortiGate cannot assign the user to a group, and the firewall policy requiring that group will deny access.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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