shell/SECURITY-REMEDIATION-PLAN.md

# Security Remediation Plan

**Priority:** HIGH
**Target Completion:** Next 30 days
**Responsible:** Development Team

## Overview

This document outlines the prioritized remediation plan for security issues identified in the comprehensive security review conducted on $(date '+%Y-%m-%d').

## Status Summary

| Priority | Issue Count | Status |
|----------|-------------|---------|
| CRITICAL | 1 | ✅ RESOLVED |
| HIGH | 3 | 🔄 IN PROGRESS |
| MEDIUM | 5 | 📋 PLANNED |
| LOW | 2 | 📋 BACKLOG |

## Priority 1: High-Risk Issues (Complete within 7 days)

### 1.1 Remote Code Execution via curl | bash

**Risk Level:** HIGH
**Impact:** Arbitrary code execution
**Effort:** 2-4 hours

**Files to Fix:**

- `/home/acedanger/shell/setup/debian-patches.sh` (Line 176)
- `/home/acedanger/shell/setup/setup.sh` (Lines 552, 564)

**Remediation Steps:**

1. **For debian-patches.sh:**

   ```bash
   # Replace line 176:
   # curl -s https://raw.githubusercontent.com/acedanger/shell/main/bootstrap.sh | bash

   # With secure download and execution:
   TEMP_BOOTSTRAP=$(mktemp)
   if curl -s https://raw.githubusercontent.com/acedanger/shell/main/bootstrap.sh -o "$TEMP_BOOTSTRAP"; then
       # Optional: verify checksum if available
       bash "$TEMP_BOOTSTRAP"
       rm -f "$TEMP_BOOTSTRAP"
   else
       echo "Failed to download bootstrap script"
       exit 1
   fi
   ```

2. **For setup.sh (zoxide installation):**

   ```bash
   # Replace line 552:
   # curl -sS https://raw.githubusercontent.com/ajeetdsouza/zoxide/main/install.sh | bash

   # With secure installation:
   TEMP_ZOXIDE=$(mktemp)
   if curl -sS https://raw.githubusercontent.com/ajeetdsouza/zoxide/main/install.sh -o "$TEMP_ZOXIDE"; then
       # Optional: verify known good checksum
       bash "$TEMP_ZOXIDE"
       rm -f "$TEMP_ZOXIDE"
   else
       echo "Failed to download zoxide installer"
       exit 1
   fi
   ```

3. **For setup.sh (nvm installation):**

   ```bash
   # Replace line 564:
   # curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.5/install.sh | bash

   # With secure installation:
   TEMP_NVM=$(mktemp)
   if curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.5/install.sh -o "$TEMP_NVM"; then
       # Optional: verify checksum against known good hash
       bash "$TEMP_NVM"
       rm -f "$TEMP_NVM"
   else
       echo "Failed to download nvm installer"
       exit 1
   fi
   ```

**Testing Requirements:**

- Test installation processes in isolated environment
- Verify all dependent functionality continues to work
- Run security scan to confirm fix

**Acceptance Criteria:**

- [ ] No direct piping of remote content to bash
- [ ] Downloaded scripts verified before execution
- [ ] Proper error handling implemented
- [ ] Security test passes

## Priority 2: Medium-Risk Issues (Complete within 14 days)

### 2.1 Excessive Privilege Usage

**Risk Level:** MEDIUM-HIGH
**Impact:** Privilege escalation, security boundary violations
**Effort:** 4-6 hours

**Files to Review:**

- `/home/acedanger/shell/setup/startup.sh` (Lines 45, 46, 65, 66)
- Various Plex scripts with extensive sudo usage

**Remediation Steps:**

1. **startup.sh permissions fix:**

   ```bash
   # Replace chmod 777 with appropriate permissions
   # Line 46: sudo chmod -R 777 /logs
   sudo chmod -R 755 /logs

   # Line 65: sudo chmod -R 777 /logs
   sudo chmod -R 755 /logs

   # Ensure log files are 644
   find /logs -type f -exec sudo chmod 644 {} \;
   ```

2. **Plex scripts sudo optimization:**
   - Identify minimum required sudo operations
   - Group sudo operations to reduce frequency
   - Use service-specific users where possible
   - Document privilege requirements

**Testing Requirements:**

- Verify all functionality with reduced privileges
- Test in restricted environment
- Confirm no privilege escalation vulnerabilities

**Acceptance Criteria:**

- [ ] No usage of 777 permissions
- [ ] Minimal sudo usage documented
- [ ] Service-specific users implemented where possible
- [ ] Privilege requirements documented

### 2.2 Input Validation Enhancement

**Risk Level:** MEDIUM
**Impact:** Path traversal, injection attacks
**Effort:** 3-4 hours per script

**Scripts Requiring Enhanced Validation:**

- Docker deployment scripts
- User-facing setup scripts
- File operation utilities

**Remediation Steps:**

1. **Implement input validation functions:**

   ```bash
   # Add to common utilities or each script
   validate_path() {
       local path="$1"
       # Check for path traversal attempts
       if [[ "$path" =~ \.\./|^/etc|^/usr/bin|^/bin ]]; then
           echo "ERROR: Invalid path detected: $path"
           return 1
       fi
       return 0
   }

   validate_docker_image() {
       local image="$1"
       if [[ ! "$image" =~ ^[a-zA-Z0-9._/-]+:[a-zA-Z0-9._-]+$ ]]; then
           echo "ERROR: Invalid Docker image format: $image"
           return 1
       fi
       return 0
   }
   ```

2. **Apply validation to all user inputs**
3. **Add bounds checking for numerical inputs**
4. **Sanitize file paths consistently**

## Priority 3: Maintenance and Monitoring (Complete within 30 days)

### 3.1 Automated Security Scanning

**Effort:** 2-3 hours setup + ongoing maintenance

**Implementation Steps:**

1. **Add ShellCheck to CI/CD:**

   ```yaml
   # .github/workflows/security.yml
   name: Security Scan
   on: [push, pull_request]
   jobs:
     shellcheck:
       runs-on: ubuntu-latest
       steps:
         - uses: actions/checkout@v3
         - name: Run ShellCheck
           uses: ludeeus/action-shellcheck@master
           with:
             severity: warning
   ```

2. **Weekly security script:**

   ```bash
   #!/bin/bash
   # weekly-security-scan.sh
   find . -name "*.sh" -exec shellcheck {} \;
   # Additional security tools as needed
   ```

**Acceptance Criteria:**

- [ ] Automated ShellCheck on all commits
- [ ] Weekly security scan implemented
- [ ] Security issues tracked and resolved
- [ ] Documentation updated

### 3.2 Security Documentation

**Effort:** 4-6 hours

**Deliverables:**

- [ ] Security standards document
- [ ] Incident response procedures
- [ ] Security training materials
- [ ] Regular review schedule

## Priority 4: Long-term Improvements (Complete within 60 days)

### 4.1 Security Architecture Review

**Scope:** Overall security architecture and practices
**Effort:** 8-12 hours

**Activities:**

- Review all inter-script dependencies
- Analyze privilege requirements across the stack
- Design secure defaults and configurations
- Implement defense-in-depth strategies

### 4.2 Security Testing Framework

**Scope:** Automated security testing
**Effort:** 12-16 hours

**Deliverables:**

- Automated vulnerability scanning
- Penetration testing procedures
- Security regression testing
- Performance impact assessment

## Implementation Timeline

### Week 1 (Priority 1)

- [ ] Day 1-2: Fix curl | bash patterns in setup scripts
- [ ] Day 3-4: Test and validate fixes
- [ ] Day 5: Security review and documentation update

### Week 2 (Priority 2)

- [ ] Day 1-3: Address excessive privilege usage
- [ ] Day 4-5: Implement enhanced input validation
- [ ] Weekend: Testing and validation

### Week 3-4 (Priority 3)

- [ ] Week 3: Implement automated security scanning
- [ ] Week 4: Complete security documentation

### Week 5-8 (Priority 4)

- [ ] Ongoing: Security architecture review
- [ ] Ongoing: Security testing framework development

## Resource Requirements

### Development Time

- **Priority 1:** 8-12 hours total
- **Priority 2:** 16-20 hours total
- **Priority 3:** 12-16 hours total
- **Priority 4:** 20-28 hours total

### Skills Required

- Shell scripting expertise
- Security best practices knowledge
- CI/CD pipeline configuration
- System administration

### Tools Needed

- ShellCheck
- Git hooks for security scanning
- Testing environments (Docker)
- Security scanning tools

## Success Metrics

### Security Improvements

- [ ] 0 critical vulnerabilities
- [ ] <5 high-risk issues
- [ ] 100% of scripts pass security checks
- [ ] All curl | bash patterns eliminated

### Process Improvements

- [ ] Automated security scanning implemented
- [ ] Security review process established
- [ ] Documentation complete and up-to-date
- [ ] Team trained on security practices

### Compliance Measures

- [ ] Security checklist adopted
- [ ] Regular security reviews scheduled
- [ ] Incident response procedures tested
- [ ] Security metrics tracked and reported

## Risk Management

### Implementation Risks

- **Functionality Impact:** Thorough testing required for all changes
- **Timeline Pressure:** Prioritize critical fixes, defer non-critical items if needed
- **Resource Availability:** Ensure dedicated time for security work

### Mitigation Strategies

- Implement changes in isolated branches
- Require peer review for all security changes
- Maintain rollback procedures for all modifications
- Test in staging environment before production deployment

## Communication Plan

### Stakeholder Updates

- **Weekly:** Progress updates to development team
- **Bi-weekly:** Status reports to management
- **Monthly:** Security metrics and trend analysis

### Escalation Procedures

- **Blocked Issues:** Escalate within 24 hours
- **New Critical Findings:** Immediate escalation
- **Timeline Risks:** Weekly assessment and communication

---

**Document Owner:** Security Team
**Last Updated:** $(date '+%Y-%m-%d')
**Next Review:** $(date -d '+30 days' '+%Y-%m-%d')

**Approval Required:** Development Team Lead, Security Officer
**Change Control:** All modifications to this plan require documented approval