Logging and monitoring

Enhanced instance metadata service (IMDSv2) is not enforced

Platform(s)
Compliance Frameworks
  • AWS Foundational Security Best Practices Controls
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  • CCPA
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  • CPRA
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  • HITRUST
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  • iso_27001_2022
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  • iso_27002_2022
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  • Mitre ATT&CK
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  • NIST 800-171
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  • NIST 800-53
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  • Orca Best Practices
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  • PDPA
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  • UK Cyber Essentials

Description

The use of IMDSv2, the enhanced version of the Instance Metadata Service, is not enforced on the EC2 instance {AwsEc2Instance} ({AwsEc2Instance.InstanceId}). IMDSv2 solves a lot of security issues in the original version (IMDSv1) by using session-based authentication. If an instance is still using IMDSv1, malicious actors can use compromised applications running inside it to gain unauthorized access to the metadata service.