Which approach should the team take to accomplish this task?

Explanations:

AWS Config is primarily used for compliance auditing and monitoring configuration changes. While it can help in assessing configurations over time, it does not provide a direct method for scanning installed software versions. Using Amazon Athena to query AWS CloudTrail logs would not effectively identify the installed version of the web framework.

Amazon Inspector’s Network Reachability rules package focuses on identifying network vulnerabilities and issues rather than detecting specific software versions. This option does not specifically target the identification of a particular version of a web framework installed on EC2 instances.

AWS Systems Manager provides tools to run compliance scans and scripts across multiple EC2 instances. By using Systems Manager to execute a script or document that checks for the installed version of the vulnerable web framework, the security team can quickly identify other affected instances. This is the most efficient approach to directly assess the installed software.

AWS Resource Access Manager (RAM) is used for sharing AWS resources across accounts and does not provide functionality for scanning or identifying software versions on EC2 instances. Therefore, it is not a suitable option for identifying vulnerable web framework versions.