EU DORA Article 28: Third-Party Risk Exposure from Unredacted TAC Uploads
Exporting full FortiGate backup configurations (show full-configuration) to external vendor support portals exposes reversible ENC admin passwords, IPsec pre-shared keys, and BGP secrets to third-party cloud data stores, triggering direct non-compliance under EU DORA Article 28.
Technical Root Cause Analysis
The European Union Digital Operational Resilience Act (Regulation EU 2022/2554, DORA) Article 28 establishes strict obligations on financial institutions regarding Information and Communication Technology (ICT) third-party risk management. A frequent procedural vulnerability occurs during critical incident triage: Network Operations Center (NOC) engineers open urgent TAC support cases and attach full configuration backups or complete terminal logs.
Although FortiOS encodes administrative passwords and IPsec pre-shared keys using the ENC ... prefix, this encoding is not an irreversible salted hash for pre-shared keys. Rather, it is an obfuscation mechanism designed for configuration parsing. With known decryption routines, third parties or compromised support systems can recover the plaintext PSKs protecting inter-bank core IPsec tunnels, administrative passwords, and SNMP v2/v3 credentials within milliseconds. Under DORA Article 28(2), financial entities are strictly liable for the unauthorized exposure of critical cryptographic secrets to third-party vendors.
Affected Firmware & Governance Blast Radius
| FortiOS Branch | Built-in Backup Obfuscation | Third-Party Exposure Risk | Sanitization Requirement |
|---|---|---|---|
| FortiOS 7.4 / 7.6 | ENC with extended salt (AES-CBC) | High (Global salt known) | Client-side zero-egress redaction required |
| FortiOS 7.2 | ENC with legacy salt (DES/3DES derived) | Critical (Trivially reversible) | Mandatory pre-upload masking |
| FortiOS 7.0 | ENC with legacy obfuscation | Critical (Trivially reversible) | Mandatory pre-upload masking |
| FortiOS 6.4 and older | Cleartext or weak ENC strings | Extreme (Direct plain leakage) | Immediate secret rotation & scrubber required |
Platform Impact: All European banks, payment service providers, insurance firms, and credit rating agencies subject to European Supervisory Authorities (EBA, EIOPA, ESMA) supervision.
Step 01: Free Verification CLI (Safe Read-Only)
Execute these non-intrusive commands to identify all sensitive cryptographic parameters, administrative accounts, and tunnel endpoints that must never leave your enclave unredacted:
Diagnostic Commands
# 1. Audit system build, serial number, and active VDOMs
get system status
# 2. Enumerate active IPsec phase 1 definitions with pre-shared keys
show vpn ipsec phase1-interface | grep -E "edit|psksecret|remote-gw"
# 3. List administrative credentials and access profiles
show system admin | grep -E "edit|password|trusthost"
# 4. Review SNMP v2c/v3 communities and authentication passwords
show system snmp community
show system snmp userRemediation & Workaround Steps (Teaser Preview)
Follow the complete step-by-step remediation guide in the Ferrite interactive platform:
Frequently Asked Questions
FortiOS config backups obscure passwords and PSKs using an internal reversible encoding mechanism or global salt. Dedicated decryption utilities can reverse standard ENC strings back to cleartext within seconds. Under EU DORA Article 28, transmitting easily reversible cryptographic keys to external SaaS or support portals represents an unacceptable ICT supply-chain risk.
Financial entities face administrative penalties and periodic penalty payments of up to 1% of average daily worldwide turnover under DORA enforcement, in addition to mandatory public disclosure of security posture compromises.
Engineers should use the Ferrite Zero-Trust Scrubber to redact private RFC 1918 subnets, device serials, admin users, and all ENC blocks into localized aliases while preserving interface binding logic and daemon crash traces required by TAC engineers.