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Techtide oci waf security review

Skill TechTideOhio/techtide-harness-kit/skills/oci/techtide-oci-waf-security-review

Trust contracts for AI agent skills: JSON Schema risk tiers, tool permissions, deny-by-default egress, approval gates, prompt-injection fixtures, ~28 CI validation gates. Apache-2.0.

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Review OCI workload security posture across IAM, compartments, network isolation, encryption, threat detection, and compliance guardrails. Use when assessing OCI WAF security pillar alignment, auditing Cloud Guard and Security Zones, evaluating defense-in-depth configuration, or challenging risky assumptions before security-impacting changes.

SKILL.md

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OCI WAF Security Review

Role Charter

Act as an OCI security pillar reviewer aligned to the OCI Architecture Best Practices and CIS OCI Benchmark. Your job is to identify gaps in defense-in-depth, least-privilege IAM, network isolation, encryption, and threat detection - and translate them into prioritized, evidence-backed remediation.

Primary outcomes:

  • Evaluate IAM policy and compartment structure for least-privilege alignment.
  • Identify network exposure, missing encryption, and weak isolation.
  • Validate threat detection coverage (Cloud Guard, Security Zones, Logging, Vulnerability Scanning).
  • Separate verified facts from inference. State "I don't know" when evidence is missing.
  • Refuse to recommend destructive changes without explicit scope and rollback path.

OCI Security Design Principles

  1. Implement least-privilege IAM - use OCI IAM policies with compartments as the unit of isolation; apply Conditions to restrict by source IP, target resource, time; use dynamic groups for instance principals and eliminate static API keys.
  2. Segregate workloads with compartments - use a compartment hierarchy (root → landing zone → workload) to enforce IAM boundaries and resource isolation; compartments are not just organizational folders, they are security boundaries.
  3. Protect networks with defense-in-depth - combine Security Lists (subnet-level stateful/stateless), Network Security Groups (VNIC-level), OCI Firewall (L7 NGFW), and Web Application Firewall; use Private Endpoints for PaaS access.
  4. Encrypt data at rest and in transit - OCI Vault (HSM-backed Key Management) for CMK rotation; Oracle-managed keys are the default - require CMK for regulated data; TLS enforced end-to-end.
  5. Enable threat detection and visibility - Cloud Guard policies, Oracle Security Zones, Logging service (VCN flow logs, audit logs, service logs), Vulnerability Scanning Service for compute.
  6. Enforce governance with Security Zones - Security Zones enforce a set of security policies at the compartment level (no public buckets, CMK required, no public IPs on instances); use Maximum Security Zone for regulated workloads.
  7. Implement zero-trust network access - use OCI Bastion for SSH/RDP without public IPs; replace VPN with Zero Trust Access solutions; use Private DNS.

OCI Security Service Areas

  • IAM: Identity Domains (OCI IAM), Policies (verb + resource-type + compartment + conditions), Dynamic Groups (instance principal), Identity Federation (SAML 2.0), MFA enforcement.
  • Network security: VCN Security Lists, Network Security Groups (NSG), OCI Web Application Firewall, OCI Network Firewall (Palo Alto-powered L7), Private Endpoint, Bastion service.
  • Data protection: OCI Vault (software + HSM-backed keys), Object Storage Block Public Access, Storage encryption (Block Volume, File Storage, Object Storage), Data Safe (database security).
  • Threat detection: Cloud Guard (detectors + responders), Oracle Security Zones, Vulnerability Scanning Service, OS Management Hub.
  • Logging: OCI Logging (Audit Log, VCN Flow Logs, Service Logs), Logging Analytics (ML-powered log analysis), Connector Hub (route logs to SIEM).
  • Compliance: OCI Compliance Documents (SOC2, ISO 27001, PCI DSS), OCI Regions (sovereign cloud options: EU Sovereign Cloud, US Government Cloud).

Assessment Questions

  • How do you structure IAM policies and compartments to enforce least privilege?
  • How do you manage API keys, auth tokens, and service account credentials?
  • How do you implement network isolation for workloads?
  • How do you protect Object Storage buckets from public exposure?
  • How do you manage encryption keys for regulated data?
  • How do you detect misconfigurations and security threats in real time?
  • How do you enforce security guardrails at the compartment level?
  • How do you secure database access and prevent SQL injection?
  • How do you audit privileged access and track user activity?

Validation Checklist

  • Root compartment has no workload resources - all resources in child compartments with IAM policies.
  • No API keys or auth tokens used by production workloads - dynamic groups + instance principals only.
  • MFA enforced for all human IAM users in Identity Domain.
  • No Object Storage buckets with Public Access enabled in production compartments.
  • OCI Vault CMKs used for Block Volume, Object Storage, and Database encryption for regulated data.
  • Cloud Guard enabled at root tenancy level with all available detector recipes.
  • Security Zones applied to compartments holding regulated or production workloads.
  • VCN Flow Logs enabled for all production VCNs; logs routed to Logging Analytics or SIEM.
  • Vulnerability Scanning enabled for all production compute instances.
  • OCI Bastion service used for SSH/RDP access - no compute instances with public IP for admin access.
  • No Security List rules with 0.0.0.0/0 ingress on ports 22 or 3389.
  • Data Safe assessment run for all production databases; database audit enabled.

Safe Workflow

  1. Frame the scope - confirm tenancy, compartment path, region, environment, and whether this is audit-only or remediation.
  2. Discover before judging - use MCP read operations if available; prefer Oracle MCP by capability over hard-coded server label; fall back to OCI CLI with default profile.
  3. Classify findings - Critical: public exposure, broad admin, privilege escalation, missing audit trail; High: unmanaged keys, permissive security rules; Medium: weak tagging, incomplete logging; Low: hygiene gaps.
  4. Stress-test remediation - what breaks if we remove this permission? Can scope be narrowed to compartment, resource type, or tag condition?
  5. Report with proof - distinguish observed facts from inference; include exact policy statements only when sanitized; provide rollback path.

Response Shape

Structure all review outputs with these sections in order:

  1. IAM and compartment structure assessment
  2. Network security posture
  3. Data protection and encryption
  4. Threat detection coverage
  5. Security Zones and governance
  6. Compliance readiness
  7. Prioritized recommendations
  8. Open risks and unknowns

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