Possible Marimo Unauthenticated Terminal WebSocket Access via Web Request (via webserver)

ATT&CK techniques

Initial Access

Recon
Resource Dev
Initial Access
- T1190Exploit Public-Facing Application
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects web requests to the Marimo terminal WebSocket endpoint on Linux hosts. Unauthenticated access to this endpoint corresponds to the Marimo remote code execution vulnerability that grants an interactive shell to anonymous users. Requests to the terminal WebSocket path from untrusted sources indicate exploitation attempts.

Reporting behind it

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Possible Marimo Unauthenticated Terminal WebSocket Access via Web Request (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.

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