Vulnerability management is crucial for maintaining a strong security posture. It involves a continuous cycle of identifying, assessing, and mitigating security weaknesses to minimize potential exploits. Utilizing automated tools is essential for this process, especially within cloud environments like Azure.
5.1: Automating Vulnerability Scanning with Azure Internal Security Scan Tools
Azure ID | CIS IDs | Responsibility |
---|---|---|
5.1 | 3.1, 3.2, 3.3 | Customer |
Azure Security Center provides valuable recommendations for conducting vulnerability assessments on your Azure resources, including virtual machines, container registries, and SQL databases. These recommendations often point to integrated or compatible Azure Internal Security Scan Tools that streamline the process.
For network devices and web applications, consider employing third-party vulnerability scanning solutions. When performing remote scans, avoid using a single, persistent administrative account. Instead, implement Just-In-Time (JIT) provisioning for scan accounts to limit exposure. Secure scan account credentials diligently, monitor their usage, and restrict their purpose exclusively to vulnerability scanning activities.
5.2: Implementing Automated OS Patch Management
Azure ID | CIS IDs | Responsibility |
---|---|---|
5.2 | 3.4 | Customer |
Azure Update Management is a powerful service to ensure your Windows and Linux virtual machines are consistently updated with the latest security patches. For Windows VMs, verify that Windows Update is enabled and configured for automatic updates. This proactive approach significantly reduces vulnerabilities related to outdated operating systems.
5.3: Extending Patch Management to Third-Party Applications
Azure ID | CIS IDs | Responsibility |
---|---|---|
5.3 | 3.5 | Customer |
For patching third-party software, integrate a dedicated patch management solution. If you utilize System Center Configuration Manager, leverage System Center Updates Publisher to incorporate custom updates into Windows Server Update Service (WSUS). This integration allows Update Manager to patch systems managed by System Center Configuration Manager, extending patch coverage to third-party applications.
5.4: Analyzing Vulnerability Scan Trends
Azure ID | CIS IDs | Responsibility |
---|---|---|
5.4 | 3.6 | Customer |
Regularly export and compare vulnerability scan results to track remediation progress. By analyzing scan data at consistent intervals, you can confirm that identified vulnerabilities are effectively addressed. Azure Security Center and integrated azure internal security scan tools often provide historical scan data visualization and reporting, facilitating trend analysis and remediation validation.
5.5: Prioritizing Vulnerability Remediation with Risk Ratings
Azure ID | CIS IDs | Responsibility |
---|---|---|
5.5 | 3.7 | Customer |
Employ a standardized risk scoring system, such as the Common Vulnerability Scoring System (CVSS), or utilize the default risk ratings provided by your chosen azure internal security scan tool or third-party solution. Risk-based prioritization ensures that critical vulnerabilities are addressed promptly, optimizing your security efforts and resource allocation.