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3.2 KiB
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Vulnerability SLA Policy Template
1. Purpose
This policy establishes remediation timelines for security vulnerabilities based on severity classification, defines escalation procedures for SLA breaches, and specifies reporting requirements for compliance tracking.
2. Scope
This policy applies to all information systems, applications, and infrastructure components managed by [Organization Name].
3. SLA Definitions
| Severity | CVSS Range | Remediation Timeline | Grace Period | Escalation Path |
|---|---|---|---|---|
| Critical | 9.0 - 10.0 | 48 hours | 12 hours | Asset Owner -> Security Director -> CISO |
| High | 7.0 - 8.9 | 15 calendar days | 5 days | Asset Owner -> Team Lead -> Security Director |
| Medium | 4.0 - 6.9 | 60 calendar days | 14 days | Asset Owner -> Team Lead |
| Low | 0.1 - 3.9 | 90 calendar days | 30 days | Asset Owner |
4. Exception Process
4.1 Exception Request Requirements
- CVE identifier and affected system details
- Business justification for extension
- Compensating controls implemented
- Proposed new remediation date
- Risk acceptance signature from system owner and CISO
4.2 Maximum Exception Duration
- Critical: 14 days maximum extension
- High: 30 days maximum extension
- Medium: 60 days maximum extension
- Low: 90 days maximum extension
5. Alerting Configuration
5.1 Notification Schedule
80% SLA elapsed -> Warning to asset owner (email + Slack)
100% SLA elapsed -> Breach alert (email + Slack + PagerDuty for Critical/High)
SLA + 24 hours -> Escalation Level 1 (team lead)
SLA + 72 hours -> Escalation Level 2 (director)
SLA + 7 days -> Escalation Level 3 (CISO)
5.2 Notification Channels
- Email: All severity levels
- Slack: High and Critical severity
- PagerDuty: Critical severity SLA breaches only
- Jira: Automatic ticket creation for all findings
6. Reporting Requirements
6.1 Weekly Report
- Count of open findings by severity
- Count of SLA breaches by severity
- Top 5 assets with most open findings
- Remediation velocity trend
6.2 Monthly Report
- Overall SLA compliance rate by severity
- Mean time to remediate by severity
- Exception count and approval rate
- Quarter-over-quarter improvement trends
6.3 Executive Dashboard
- Overall compliance percentage
- Risk exposure trend (critical/high open count over time)
- Team/business unit comparison
- Regulatory compliance status (PCI, SOC2, HIPAA)
7. Compliance Mapping
| Regulation | Requirement | SLA Alignment |
|---|---|---|
| PCI DSS 4.0 | Req 6.3.3 | Critical/High within 30 days |
| SOC 2 | CC7.1 | Evidence of SLA tracking and remediation |
| HIPAA | 164.312(a)(1) | Risk-based remediation timeline |
| CISA BOD 22-01 | KEV remediation | 14 days for KEV-listed CVEs |
| NIST CSF 2.0 | ID.RA-01 | Risk-ranked vulnerability management |
8. Roles and Responsibilities
- Asset Owner: Remediate within SLA, request exceptions when needed
- Security Team: Monitor SLA compliance, manage alerting system
- Team Lead: Review team SLA metrics, escalate blockers
- CISO: Approve critical exceptions, review monthly metrics