CONDUIT TICKET REPORT

Finding Summary

Short description

[TITAN] Critical — network on nsg-telco-5g-core

Severity

Critical

Priority

1 - Critical

Resource

nsg-telco-5g-core

Resource type

Microsoft.Network/networkSecurityGroups

Cloud

Azure

Subscription / Account

4f29d094-1079-44c9-acb0-4d73a7a2dd34

Resource group / Project

rg-telco-prod

The Security Finding

5G core NSG allows any-any between N6/N9 interfaces — control-plane and user-plane traffic improperly separated. 3GPP TS 33.501 and NIST SP 800-207 (Zero Trust) deviation.

ITIL Change Management Fields

Justification

Critical: 5G core NSG allows any-any between N6/N9 interfaces — control-plane and user-plane traffic improperly separated. 3GPP TS 33.501 and NIST SP 800-207 (Zero Trust) deviation.

Implementation Plan

1. Pre-change snapshot captured by TITAN (auto-rollback available).
2. Execute fix command:
   az network nsg rule create --resource-group rg-telco-5g --nsg-name nsg-telco-5g-core --name allow-n6-only --priority 100 --source-address-prefixes 10.5.0.0/16 --destination-port-ranges 2152 --access Allow --protocol Udp
3. TITAN FORGE verifies the fix was applied.
4. Post-change rescan by TITAN SCOUT — finding must no longer appear.
5. Close ticket with Successful close_code.

Risk & Impact Analysis

Risk level: HIGH business risk — active exposure; fix required immediately.
Business impact if unremediated: Potential data exfil, privilege escalation, or compliance breach.
Scope: single resource (nsg-telco-5g-core).
Blast radius: change is idempotent; pre-change snapshot captured by TITAN; auto-rollback available if rescan fails.
Finding detail: 5G core NSG allows any-any between N6/N9 interfaces — control-plane and user-plane traffic improperly separated. 3GPP TS 33.501 and NIST SP 800-207 (Zero Trust) deviation.

Backout / Rollback Plan

1. TITAN auto-captured snapshot of nsg-telco-5g-core before change (baseline: titan-telecom-demo-20260422T201925Z).
2. If post-change rescan still shows the finding OR a new issue appears within 15 min:
   a. TITAN FORGE fires rollback automatically using stored snapshot.
   b. Incident reopens and escalates to on-call.
3. Manual rollback command path (human override) is documented in close notes.

Test Plan

1. TITAN SCOUT rescans nsg-telco-5g-core immediately after FORGE applies the change.
2. PASS criteria: the specific finding no longer appears in SCOUT results.
3. PASS criteria: no new CRITICAL or HIGH findings introduced by the change.
4. Automated compliance check: HIPAA/PCI/SOC2 controls re-evaluated.
5. If any check fails, backout plan fires automatically.

Recommended Fix

az network nsg rule create --resource-group rg-telco-5g --nsg-name nsg-telco-5g-core --name allow-n6-only --priority 100 --source-address-prefixes 10.5.0.0/16 --destination-port-ranges 2152 --access Allow --protocol Udp

Compliance Mapping

Routing Metadata

Assignment group

network_operations

Change type

Emergency

Approval required

Yes

Planned start

2026-04-22 19:51:25

Planned end

2026-04-22 21:51:25

Scan ID

titan-telecom-demo-20260422T201925Z

Generated at

2026-04-22T19:37:25+00:00

Opened

2026-04-22 19:37:25

Closed

2026-04-22 19:37:25

Close code

—

Attached Security Ticket

5G core NSG allows any-any between N6/N9 interfaces — control-plane and user-plane traffic improperly separated. 3GPP TS 33.501 and NIST SP 800-207 (Zero Trust) deviation.

Recommended Fix: az network nsg rule create --resource-group rg-telco-5g --nsg-name nsg-telco-5g-core --name allow-n6-only --priority 100 --source-address-prefixes 10.5.0.0/16 --destination-port-ranges 2152 --access Allow --protocol Udp

AI Close Notes

TITAN CONDUIT opened this critical ticket and assigned it to the regulatory_affairs group for review. STATE: ASSIGNED — awaiting human action. Per TITAN AI policy, configuration changes are NEVER auto-applied and tickets are NEVER auto-closed by TITAN. The assigned group reviews the recommended fix, schedules an approved maintenance window, applies the fix manually, validates via SCOUT rescan, and closes this ticket themselves. TITAN documents and routes — the human owns the change from here.