Possible Ivanti Connect Secure Path Traversal Exploitation

PremiumReviewedSigma · High · v1
Category
webserver
Author
HuntRule
Published
2026-05-11
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 HTTP requests to the Ivanti Connect Secure TOTP backup-code endpoint containing directory traversal sequences, the access pattern used to exploit the authentication bypass zero-day. Threat actors chain this traversal to reach restricted API paths and deploy webshells. Detecting these requests exposes active exploitation of the Ivanti appliance.

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