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🛡️ Application Security & ArchitectureSTRIDE & DREAD Framework

Threat Modeling Studio & STRIDE Canvas

Eliminate architectural blind spots before shipping code. Model system boundaries, evaluate attack vectors across all six STRIDE categories (Spoofing, Tampering, Repudiation, Information Disclosure, Denial of Service, Elevation of Privilege), calculate quantitative DREAD risk indices, and generate auditor-ready Markdown documentation.

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Load an industry reference model or construct your own STRIDE & DREAD canvas.

📦 Client Browser / Mobile App📦 Cloudflare WAF / API Gateway📦 Node.js Order Microservice📦 Stripe Webhook Listener📦 PostgreSQL Database Cluster📦 Redis Session Cache

DREAD Risk Scorecard

7.4 / 10.0
High Risk
3Critical (8.0-10)
2High (6.0-7.9)
1Medium (4.0-5.9)
0Low (<4.0)

STRIDE Threat Categories

[S] SpoofingAuthentication

Impersonating someone or something else, forging identity tokens, or credential theft.

[T] TamperingIntegrity

Malicious modification of code, configuration, network packets, or database records.

[R] RepudiationNon-Repudiation

Claiming not to have performed an action, lacking immutable audit trails or digital signatures.

[I] Information DisclosureConfidentiality

Exposing data to unauthorized entities, credential leaks, unencrypted transit, or verbose errors.

[D] Denial of ServiceAvailability

Denying service to valid users, compute exhaustion, DDoS attacks, or memory leaks.

[E] Elevation of PrivilegeAuthorization

Gaining capabilities without proper authorization, RBAC bypass, or root/admin takeover.

🛡️ Identified Attack Vectors & DREAD Scoring(6 threats)

THREAT-01[S] Spoofing📦 Cloudflare WAF / API GatewayDREAD 8Critical

JWT Token Forgery via Weak Secret or Algorithm Switching

Adversary signs counterfeit JWTs using algorithm: 'none' or brute-forced symmetric HMAC keys to impersonate store administrators.

DREAD Threat Scoring Vector (Adjust dynamically)
Damage9/10
Reproducibility8/10
Exploitability7/10
Affected Users10/10
Discoverability6/10
Remediation Controls & Architecture Mitigations:
  • Enforce RS256/EdDSA asymmetric key signing with remote JWKS verification
  • Reject tokens with 'none' or unauthorized alg headers at gateway boundary
  • Automate secret rotation via Bitwarden / HashiCorp Vault
Recommended Control: Bitwarden (Identity & Secret Governance)Evaluate Solution →
THREAT-02[T] Tampering📦 PostgreSQL Database ClusterDREAD 7.6High

SQL Injection & ORM Filter Bypass in Product Search

Unsanitized user inputs in elastic/relational search endpoints allow adversaries to modify queries and exfiltrate user tables.

DREAD Threat Scoring Vector (Adjust dynamically)
Damage9/10
Reproducibility7/10
Exploitability6/10
Affected Users9/10
Discoverability7/10
Remediation Controls & Architecture Mitigations:
  • Mandate parameterized queries and type-safe ORM abstraction layer
  • Deploy static application security testing (SAST) in CI/CD pipeline
  • Implement least-privilege PostgreSQL user grants (no DDL permissions in runtime app)
Recommended Control: Snyk (Application Security SAST/SCA)Evaluate Solution →
THREAT-03[R] Repudiation📦 Node.js Order MicroserviceDREAD 4.8Medium

Absence of Immutable Audit Logging for Checkout Financial Transactions

Checkout service writes mutable application logs without cryptographic hash chaining, allowing malicious insiders to delete purchase evidence.

DREAD Threat Scoring Vector (Adjust dynamically)
Damage6/10
Reproducibility5/10
Exploitability4/10
Affected Users5/10
Discoverability4/10
Remediation Controls & Architecture Mitigations:
  • Stream structured audit events to append-only WORM S3 buckets with Object Lock
  • Sign audit records using Ed25519 before transmission to external SIEM
  • Forward logs immediately via Cloudflare Logpush
Recommended Control: Cloudflare (Cloud Security & Log Protection)Evaluate Solution →
THREAT-04[I] Information Disclosure📦 Redis Session CacheDREAD 6.6High

PII & Credit Card Token Exposure via Unrestricted S3 / Redis Dumps

Unencrypted session tokens stored in in-memory Redis instances or unmasked PII serialized in error traces expose customer records.

DREAD Threat Scoring Vector (Adjust dynamically)
Damage8/10
Reproducibility6/10
Exploitability6/10
Affected Users8/10
Discoverability5/10
Remediation Controls & Architecture Mitigations:
  • Enforce Redis TLS encryption in-transit and AES-256 data-at-rest encryption
  • Tokenize sensitive payment payloads prior to session storage (never store raw PAN)
  • Scan cloud storage buckets with CSPM / DSPM tooling
Recommended Control: Wiz (Cloud Security Posture Management)Evaluate Solution →
THREAT-05[D] Denial of Service📦 Cloudflare WAF / API GatewayDREAD 8.6Critical

Distributed HTTP/2 Rapid Reset & Resource Exhaustion

High-volume stream reset flooding overwhelms the edge reverse proxy and starves legitimate customer checkout transactions.

DREAD Threat Scoring Vector (Adjust dynamically)
Damage8/10
Reproducibility9/10
Exploitability8/10
Affected Users10/10
Discoverability8/10
Remediation Controls & Architecture Mitigations:
  • Enable Cloudflare Layer 7 DDoS mitigation and adaptive rate limiting
  • Configure upstream concurrent stream limits on edge reverse proxies
  • Implement token-bucket throttling per API key / IP address
Recommended Control: Cloudflare (Edge DDoS & WAF Defense)Evaluate Solution →
THREAT-06[E] Elevation of Privilege📦 Node.js Order MicroserviceDREAD 8.6Critical

BOLA / IDOR Parameter Tampering on Admin Order Refund Endpoints

Standard users modify the orderId parameter on `/api/v1/orders/{id}/refund` to process refunds for arbitrary accounts.

DREAD Threat Scoring Vector (Adjust dynamically)
Damage9/10
Reproducibility9/10
Exploitability8/10
Affected Users9/10
Discoverability8/10
Remediation Controls & Architecture Mitigations:
  • Validate object ownership at the database query layer (`WHERE id = :id AND tenant_id = :tenant_id`)
  • Enforce centralized Role-Based Access Control (RBAC) middleware
  • Conduct continuous DAST and API contract security testing
Recommended Control: Tenable (Vulnerability & Web App Scanning)Evaluate Solution →