Summary

Netsparker detected a Server-Side Request Forgery based on pattern matching and confirmed the vulnerability using specific AWS meta-data API requests.

Impact

Server-Side Request Forgery allows an attacker to make local and/or remote network requests while masquerading as the target server.

Having an AWS meta-data API endpoint that is accessible through SSRF MAY lead to total compromise of the virtual computer and other AWS resources that are accessible by the compromised account.

Remediation
  • Where possible, do not use users' input for URLs.
  • If you definitely need dynamic URLs, use whitelisting. Make a list of valid, accepted URLs and do not accept other URLs.
  • Ensure that you only accept URLs those are located on the trusted domains.
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