CMMC v2.11 Practices

RA.L2-3.11.2  

Reference: CMMC v2.11

Family: RA

Level Introduced: 2

Title: Vulnerability Scan

Practice:
Scan for vulnerabilities in organizational systems and applications periodically and when new vulnerabilities affecting those systems and applications are identified.

Further Discussion:
A vulnerability scanner is an application that identifies vulnerabilities in organizational assets. Most scanners can create a prioritized list of vulnerabilities ordered by their level of severity. Scan for vulnerabilities on all devices connected to the network including servers, desktops, laptops, virtual machines, containers, firewalls, switches, and printers. All assets that are within the scope of the CMMC assessment must be scanned, including assets such as laptop computers that may not routinely connect to an organization’s network.

Perform reviews of your organization’s custom-developed software. Vulnerability analysis of a custom-made solution may require a penetration tester to properly test and validate findings. Automated vulnerability scanners may not be as thorough when scanning custom developed applications. Source code scanners can help identify weaknesses and vulnerabilities within code prior to compilation and use.

The vulnerability scanning process is a regular activity, not a single occurrence. Organizations put in place a vulnerability scanner that updates its database each time it performs a scan so it can identify the most current known vulnerabilities. Schedule scans with consideration of the potential for impact to normal operations and use caution when scanning critical assets.

This requirement, RA.L2-3.11.2, which ensures scanning for vulnerabilities in organizational systems and application, is a baseline Risk Assessment requirement. RA.L2-3.11.2 ,contributes to performing risk assessments as described in RA.L2-3.11.1.

Example
You are a system administrator. Your organization has assessed its risk and determined that it needs to scan for vulnerabilities in systems and applications once each quarter [a]. You conduct some tests and decide that it is important to be able to schedule scans after standard business hours. You also realize that you have remote workers and that you will need to be sure to scan their remote computers as well [b]. After some final tests, you integrate the scans into normal IT operations, running as scheduled [b,c]. You verify that the scanner application receives the latest updates on vulnerabilities and that those are included in future scans [d,e].

Potential Assessment Considerations
• Is the frequency specified for vulnerability scans to be performed in organizational systems and applications (e.g., continuous passive scanning, scheduled active scans) [a]?
• Are vulnerability scans performed on a defined frequency or randomly in accordance with company policy [a,b,c]?
• Are systems periodically scanned for common and new vulnerabilities [d,e]?
• Is the list of scanned system vulnerabilities updated on a defined frequency or when new vulnerabilities are identified and reported [d,e]?

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Source: CMMC v2.11