mirror of
https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git
synced 2026-06-11 13:44:56 +03:00
mukul975
c21af3347e
- Add scripts/agent.py and references/api-reference.md to all remaining skills - Update all 648 LICENSE files: copyright now reads 'Mahipal' - Add implementing-security-monitoring-with-datadog (new skill with full anatomy) - All 649 skills now have: SKILL.md, LICENSE, scripts/agent.py, references/api-reference.md
76 lines
2.9 KiB
Markdown
76 lines
2.9 KiB
Markdown
# API Reference: Implementing Patch Management for OT Systems
|
|
|
|
## ICS-CERT Advisory API
|
|
|
|
```bash
|
|
# Query CISA ICS advisories (RSS/JSON)
|
|
curl -s "https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json" | jq '.vulnerabilities[] | select(.vendorProject | test("Siemens|Rockwell|Schneider"))'
|
|
|
|
# NVD API for ICS CVEs
|
|
curl -s "https://services.nvd.nist.gov/rest/json/cves/2.0?keywordSearch=SCADA&resultsPerPage=20"
|
|
```
|
|
|
|
## Vendor Patch Sources
|
|
|
|
| Vendor | Advisory Source | Notification |
|
|
|--------|----------------|-------------|
|
|
| Siemens | ProductCERT (cert.siemens.com) | RSS + Email |
|
|
| Rockwell | Knowledgebase (rockwellautomation.custhelp.com) | Email |
|
|
| Schneider | PSIRT (se.com/ww/en/work/support/cybersecurity) | RSS + Email |
|
|
| ABB | Cybersecurity Advisory (abb.com) | Email |
|
|
| Honeywell | PSIRT Advisories | Email |
|
|
|
|
## Patch Prioritization Matrix
|
|
|
|
| CVSS Score | Exploited | OT Impact | Priority | SLA |
|
|
|------------|-----------|-----------|----------|-----|
|
|
| 9.0 - 10.0 | Yes | Safety system | P1 Emergency | Next maintenance window |
|
|
| 7.0 - 8.9 | Yes | Control system | P2 Critical | 30 days |
|
|
| 7.0 - 8.9 | No | Non-safety | P3 High | 90 days |
|
|
| 4.0 - 6.9 | No | Any | P4 Medium | 180 days |
|
|
| 0.1 - 3.9 | No | Any | P5 Low | Next scheduled outage |
|
|
|
|
## NERC CIP-007-6 R2 Requirements
|
|
|
|
| Sub-Requirement | Description |
|
|
|-----------------|-------------|
|
|
| R2.1 | Patch management process for tracking |
|
|
| R2.2 | Evaluate patches within 35 days of availability |
|
|
| R2.3 | Implement applicable patches within timeframe |
|
|
| R2.4 | Document mitigation plans for patches not applied |
|
|
|
|
## IEC 62443-2-3 Patch Management Lifecycle
|
|
|
|
| Phase | Action |
|
|
|-------|--------|
|
|
| Monitor | Subscribe to vendor advisories and ICS-CERT |
|
|
| Assess | Evaluate patch compatibility with OT environment |
|
|
| Test | Validate in staging environment mirroring production |
|
|
| Plan | Schedule during maintenance window with rollback |
|
|
| Deploy | Staged rollout with process verification |
|
|
| Verify | Confirm functionality and safety post-patch |
|
|
|
|
## Compensating Controls (When Patching Not Possible)
|
|
|
|
| Control | Use Case |
|
|
|---------|----------|
|
|
| Network segmentation | Isolate unpatched systems |
|
|
| Application whitelisting | Prevent exploit execution |
|
|
| Virtual patching (IPS rules) | Block known exploit vectors |
|
|
| Enhanced monitoring | Detect exploitation attempts |
|
|
| Physical access restriction | Limit console access |
|
|
|
|
## WSUS/SCCM OT Configuration
|
|
|
|
```powershell
|
|
# WSUS: Approve patch for OT test group only
|
|
Approve-WsusUpdate -Update $update -Action Install -TargetGroupName "OT-Test-Ring"
|
|
```
|
|
|
|
### References
|
|
|
|
- IEC 62443-2-3: https://www.isa.org/standards-and-publications/isa-standards/isa-iec-62443-series-of-standards
|
|
- NERC CIP-007-6: https://www.nerc.com/pa/Stand/Reliability%20Standards/CIP-007-6.pdf
|
|
- CISA ICS Advisories: https://www.cisa.gov/news-events/ics-advisories
|
|
- NVD API: https://nvd.nist.gov/developers/vulnerabilities
|