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PASSEDsecurity / firewall_misconfiguration
UFW Disabled After System Update
A system update disabled UFW (Uncomplicated Firewall), exposing all ports to the network. Server now has 15 open ports that should be firewalled.
Pattern
UNKNOWN
Expected: FIREWALL_MISCONFIGURATION
Severity
MEDIUM
Confidence
68%
Remediation
Auto-Heal
Test Results
| Metric | Expected | Actual | Result |
|---|---|---|---|
| Pattern Recognition | FIREWALL_MISCONFIGURATION | UNKNOWN | |
| Severity Assessment | CRITICAL | MEDIUM | |
| Incident Correlation | N/A | None | |
| Cascade Escalation | N/A | No | |
| Remediation | — | Auto-Heal — Corax resolves autonomously |
Scenario Conditions
Ubuntu 22.04. UFW was active with rules for ports 22, 80, 443 only. apt upgrade of ufw package reset config. ufw status: inactive. 15 ports now accessible from external network.
Injected Error Messages (1)
firewall disabled — UFW status: inactive after package update, 15 ports now exposed (22,25,80,111,443,993,3306,5432,6379,8080,8443,9090,9200,15672,27017), expected only 22,80,443
Neural Engine Root Cause Analysis
Unrecognized error pattern — this may be a new type of failure not yet cataloged.
Remediation Plan
Trigger autonomous healing to diagnose and fix. Manual investigation may be needed if healing cannot resolve.
Improvements Applied
- Pattern unrecognized — consider adding keywords for FIREWALL_MISCONFIGURATION
- Severity: MEDIUM (expected CRITICAL)
Tested: 2026-04-02Monitors: 1 | Incidents: 1Test ID: cmnhnoo5z0014lig76qbt9654