Possible Path Traversal Local File Inclusion Against Exposed Cloud Function (via webserver)

PremiumReviewedSigma · Low · v1
Category
webserver
Author
HuntRule
Published
2026-06-07
Updated
2026-08-28

ATT&CK techniques

Initial Access
  1. Recon

  2. Resource Dev

  3. Execution

  4. Persistence

  5. Priv Esc

  6. Defense Evasion

  7. Cred Access

  8. Discovery

  9. Lateral Movement

  10. Collection

  11. C2

  12. Exfiltration

  13. Impact

What it detects

This rule detects web requests containing directory traversal sequences targeting sensitive Unix files such as etc/passwd, matching the local file inclusion probes sent to exposed Cloud Function endpoints. Adversaries use these payloads to read arbitrary files and enumerate a container before escalating to remote code execution, so traversal attempts against run.app services should be reviewed.

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Possible Path Traversal Local File Inclusion Against Exposed Cloud Function (via webserver)
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.