Suspicious SSRF Probe for Cloud Instance Metadata Service

PremiumReviewedSigma · High · v1
Category
webserver
Author
HuntRule
Published
2026-06-23
Updated
2026-08-28

ATT&CK techniques

Initial Access → Cred Access
  1. Recon

  2. Resource Dev

  3. Execution

  4. Persistence

  5. Priv Esc

  6. Defense Evasion

  7. Discovery

  8. Lateral Movement

  9. Collection

  10. C2

  11. Exfiltration

  12. Impact

What it detects

This rule detects HTTP requests attempting to reach the cloud instance metadata service link local address through a url parameter. Attackers abuse server side request forgery to pull IAM security credentials from the metadata endpoint of a misconfigured public facing application.

Related detections9 linkedT1190 — drag to rearrange
Possible Jamf Pro SSRF Exploitation via eduFeatureSettingsTest imageUrl (via webserver)
Possible WebSphere Portal SSRF via Proxy Servlet targeting Cloud Metadata (CVE-2021-27748) (via webserver)
Possible SSRF to AWS Metadata via Workspace One UEM BlobHandler CVE-2021-22054
Possible SSRF via Gatsby _gatsby File Proxy Endpoint
Possible SSRF to Cloud Metadata via Nuxt _ipx Image Proxy
Possible Super SSRF via Jira Server nativemobile batch CVE-2022-26135
Malicious Cloud Metadata Credential SSRF via HTTP (via proxy)
Possible Pre-Auth SSRF via VMware Workspace One UEM BlobHandler CVE-2021-22054
Malicious EC2 Instance Metadata Credential Theft via curl (via process_creation)
Suspicious SSRF Probe for Cloud Instance Metadata Service
Pivot detection · T1190 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.