HIGH

Ensure EMR clusters use IMDSv2 for instance metadata

Instance Metadata Service v2 prevents SSRF attacks from accessing instance role credentials on EMR nodes.

Security Impact

IMDSv1 is vulnerable to SSRF attacks that can steal instance role credentials and escalate privileges.

How to Remediate

Configure EMR clusters to require IMDSv2 by setting HttpPutResponseHopLimit and HttpTokens in launch configurations.

Affected Resources

AWS::EMR::Cluster

Compliance Frameworks

Security Best PracticesNIST 800-53

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Check Details

Check ID
aws-emr-7
Service
Amazon EMR
Category
Instance Security
Severity
HIGH

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