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Certified Ethical Hacker (CEH) Practice Question

While testing a company's cloud deployment, you obtain low-privilege shell access to a web application running on an Amazon EC2 instance that still permits requests to the default Instance Metadata Service v1 (IMDSv1) endpoint. To assess whether you can pivot and leverage the instance's permissions against other AWS resources, which immediate action should you take?

  • Craft DNS queries to the EC2 internal resolver to list reachable subdomains and infer accessible S3 buckets.

  • Launch an ARP poisoning attack against the VPC's virtual router to capture IAM credential traffic in transit.

  • Send an HTTP GET request to http://169.254.169.254/latest/meta-data/iam/security-credentials/ from the shell to obtain the instance profile's temporary AWS keys.

  • Perform a full TCP scan of the 10.0.0.0/8 private range to locate other instances with open SSH services.

Certified Ethical Hacker (CEH)
Cloud Computing
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