CMMC Navigatorby Foxx Cyber Bedrock CMMC

↑↓ to move, Enter to open, Esc to close. Try 3.5.3, AC.L2-3.1.1, MFA or unmarked.

3.7.6Escort uncleared maintenance staff

Anyone without access rights doing maintenance is supervised.

The requirement, verbatim

NIST SP 800-171 Rev. 2 · 3.7.6

Supervise the maintenance activities of maintenance personnel without required access authorization.

Requirement 3.7.6, practice name in the CMMC assessment guide: Maintenance Personnel.

NIST's discussion

This requirement applies to individuals who are performing hardware or software maintenance on organizational systems, while PE.L2-3.10.1 addresses physical access for individuals whose maintenance duties place them within the physical protection perimeter of the systems (e.g., custodial staff, physical plant maintenance personnel). Individuals not previously identified as authorized maintenance personnel, such as information technology manufacturers, vendors, consultants, and systems integrators, may require privileged access to organizational systems, for example, when required to conduct maintenance activities with little or no notice. Organizations may choose to issue temporary credentials to these individuals based on organizational risk assessments. Temporary credentials may be for one-time use or for very limited time periods.

NIST SP 800-171 Rev. 2, discussion under 3.7.6. Whitespace normalised; wording unchanged.

Assessment objectives

An assessor decides each of these separately. The requirement is met only when every objective is.

  1. [a] maintenance personnel without required access authorizations are supervised during maintenance and diagnostic activities

NIST SP 800-171A, determination statements for 3.7.6.

For assessors: examine, interview, test

NIST SP 800-171A names what an assessor may examine, whom they may interview, and what they may test for this requirement. Assessors select from these lists; they are not a checklist of everything you must produce.

Examine
  • System maintenance policy
  • procedures addressing maintenance personnel
  • service provider contracts
  • service-level agreements
  • list of authorized personnel
  • maintenance records
  • access control records
  • system security plan
  • other relevant documents or records
Interview
  • Personnel with system maintenance responsibilities
  • personnel with information security responsibilities
Test
  • Organizational processes for authorizing and managing maintenance personnel
  • mechanisms supporting or implementing authorization of maintenance personnel

NIST SP 800-171A, potential assessment methods and objects for 3.7.6.

Evidence

No evidence examples are published for this requirement yet. The objectives above are what an assessor checks; evidence is whatever shows each one is true in your environment, dated and kept with your system security plan.

Scoring weight

Worth 1 point. Not meeting this requirement subtracts 1 from your 110-point SPRS score.

DoD NIST SP 800-171 Assessment Methodology v1.2.1 weighting, as carried in the Bedrock scoring table. The score starts at 110 and subtracts the weight of every requirement not met.

In Rev. 3

Rev. 2 is what your contract requires today. A standing DoD class deviation keeps Rev. 2 in force; NIST has published Rev. 3, but it is not adopted for contracts. In Rev. 3 this requirement is reworded: 03.07.06 Maintenance Personnel.

See the Rev. 2 and Rev. 3 wording word by word, or start with the status page.

Where this page's facts come from
Requirement text
bedrock-cmmc-api@89b8e8e:migrations/004_reference_requirements.sql#Requirement.basicRequirement@rev2
Discussion
bedrock-cmmc-api@89b8e8e:migrations/004_reference_requirements.sql#Requirement.discussion@rev2
Practice name
bedrock-cmmc-api@89b8e8e:migrations/004_reference_requirements.sql#Requirement.title@rev2 (CMMC Assessment Guide practice name)
Objectives
bedrock-cmmc-api@89b8e8e:migrations/005_reference_objectives.sql#AssessmentObjective.description@rev2
Examine, interview, test
bedrock-cmmc-api@89b8e8e:migrations/005_reference_objectives.sql#AssessmentObjective.description@rev2 ({examineGuidance, interviewGuidance, testGuidance})
Level
bedrock-cmmc-api@89b8e8e:migrations/021_fix_level1_requirements.sql#Requirement.cmmcLevel@rev2
Weight
bedrock-cmmc-api@89b8e8e:internal/cmmc/requirement_values.go#requirementValues (DoD AM v1.2.1 / eMASS L2 template v3.8)
Rev. 3 mapping
bedrock-cmmc-api@89b8e8e:docs/reference/nist-800-171-rev3/normalized/r2_r3_transition_map.json#r2_to_r3
Plain-language title and summary
editorial/CMMC Navigator.dc.html#RAW (Foxx Cyber editorial)