⏱️ Feature: Just-in-Time (JIT) Access & Temporary Privilege Elevation

Goal

Implement a Just-in-Time (JIT) Access system that allows temporary privilege elevation with approval workflows, automatic expiration, and enhanced auditing for incident response and least-privilege compliance.

Why Now?

1. Least Privilege: Standing elevated access violates least privilege principles
2. Incident Response: Engineers need temporary access during incidents without permanent elevation
3. Compliance: FedRAMP AC-6 and HIPAA require demonstrable least privilege
4. Audit Requirement: All elevated access must be justified and tracked
5. Break-Glass Scenarios: Need controlled emergency access with full audit trails

📖 User Stories

Given I need temporary admin access:
When I request JIT access:
  POST /jit/request
  {
    "role": "incident-responder",
    "duration_hours": 4,
    "reason": "INC-1234: Production database performance issue",
    "ticket_url": "https://jira.example.com/INC-1234"
  }
Then:
  - Request is submitted for approval
  - Approver is notified
  - I receive request ID for tracking
And when approved:
  - I immediately gain elevated privileges
  - Access expires after 4 hours
  - All actions are logged with enhanced detail

Given a JIT request is pending:
When I review the request:
Then I see:
  - Requester identity and normal permissions
  - Requested role and duration
  - Justification and linked ticket
  - Risk assessment (what new permissions granted)
And I can:
  - Approve with optional scope reduction
  - Deny with reason
  - Request additional justification

Given JIT access is granted:
Then:
  - Real-time alerts when JIT access is used
  - All actions logged with JIT context
  - Dashboard shows active JIT grants
  - Alerts on unusual activity during JIT sessions
And when JIT expires:
  - Access is immediately revoked
  - Session summary is generated

🏗 Architecture

JIT Access Flow

sequenceDiagram
    participant User as User
    participant JIT as JIT Service
    participant Approver as Approver
    participant PDP as Policy Engine
    participant Audit as Audit Log

    User->>JIT: Request elevated access
    JIT->>JIT: Validate request
    JIT->>Approver: Send approval notification
    
    alt Approved
        Approver->>JIT: Approve request
        JIT->>JIT: Activate grant (set expiry)
        JIT->>PDP: Register temporary permissions
        JIT->>Audit: Log grant activation
        JIT->>User: Access granted (4 hours)
        
        loop During grant period
            User->>PDP: Access request
            PDP->>PDP: Check JIT grants
            PDP->>Audit: Log with JIT context
        end
        
        JIT->>JIT: Timer expires
        JIT->>PDP: Revoke temporary permissions
        JIT->>Audit: Log grant expiration
        JIT->>User: Access expired notification
    else Denied
        Approver->>JIT: Deny with reason
        JIT->>Audit: Log denial
        JIT->>User: Request denied
    end

JIT Grant Schema

{
  "id": "jit-uuid",
  "requester_email": "developer@example.com",
  "requester_normal_roles": ["developer"],
  
  "granted_role": "incident-responder",
  "granted_permissions": [
    "servers.admin",
    "tools.admin",
    "logs.read"
  ],
  
  "justification": "INC-1234: Production database issue",
  "ticket_url": "https://jira.example.com/INC-1234",
  
  "approved_by": "security-admin@example.com",
  "approved_at": "2024-01-15T10:00:00Z",
  
  "starts_at": "2024-01-15T10:00:00Z",
  "expires_at": "2024-01-15T14:00:00Z",
  
  "status": "active",
  "actions_taken": 47,
  "revoked_by": null,
  "revoke_reason": null
}

📋 Implementation Tasks

• Create JIT service with grant management
• Implement JIT request API
• Implement approval workflow
• Add automatic expiration with scheduler
• Integrate with PDP for temporary permissions
• Add enhanced audit logging for JIT actions
• Implement notification system (email, Slack, webhook)
• Create break-glass emergency access (bypass approval)
• Add Admin UI:
  • Request submission form
  • Approval queue
  • Active grants dashboard
  • JIT audit viewer
• Write unit tests
• Create documentation
• Pass make verify checks

⚙️ Configuration Example

jit_access:
  enabled: true
  
  # Request settings
  max_duration_hours: 8
  default_duration_hours: 4
  require_justification: true
  require_ticket_url: false
  
  # Approval
  require_approval: true
  approver_roles:
    - security-admin
    - platform-admin
  auto_approve_for_roles: []  # Roles that don't need approval
  approval_timeout_hours: 24
  
  # Break-glass (emergency)
  break_glass:
    enabled: true
    require_mfa: true
    notify_security_team: true
    max_duration_hours: 2
    
  # Expiration
  expiration_warning_minutes: 15
  auto_extend: false
  max_extensions: 0
  
  # Notifications
  notifications:
    on_request: true
    on_approval: true
    on_activation: true
    on_use: true
    on_expiration: true
    channels:
      - email
      - slack
      
  # Audit
  enhanced_audit: true
  session_summary: true

✅ Success Criteria

• JIT request and approval workflow functional
• Automatic expiration working
• PDP integration for temporary permissions
• Enhanced audit logging for JIT sessions
• Break-glass emergency access
• Notifications on key events
• Admin UI for JIT management
• Session summary generation
• 80%+ test coverage

🔗 Related Issues

• [EPIC][SECURITY]: Policy-as-code security and compliance automation platform #2222 - Epic: Policy-as-Code Security & Compliance Platform
• [FEATURE][POLICY]: Unified policy decision point (PDP) - Cedar/OPA/native abstraction #2223 - Unified Policy Decision Point
• [EPIC][SECURITY]: Security clearance levels plugin - Bell-LaPadula MAC implementation #1245 - Security Clearance Levels Plugin (MAC integration)

📚 References

• NIST SP 800-53 AC-6: Least Privilege
• CIS Control 6: Access Control Management
• Azure PIM