3.7.4Scan maintenance media
Check diagnostic media for malicious code before use.
The requirement, verbatim
NIST SP 800-171 Rev. 2 · 3.7.4Check media containing diagnostic and test programs for malicious code before the media are used in organizational systems.
NIST's discussion
If, upon inspection of media containing maintenance diagnostic and test programs, organizations determine that the media contain malicious code, the incident is handled consistent with incident handling policies and procedures.
NIST SP 800-171 Rev. 2, discussion under 3.7.4. Whitespace normalised; wording unchanged.
Assessment objectives
An assessor decides each of these separately. The requirement is met only when every objective is.
- [a] media containing diagnostic and test programs are checked for malicious code before being used on the system
NIST SP 800-171A, determination statements for 3.7.4.
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 system maintenance tools
- system maintenance tools and associated documentation
- maintenance records
- system security plan
- other relevant documents or records
Interview
- Personnel with system maintenance responsibilities
- personnel with information security responsibilities
Test
- Organizational process for inspecting media for malicious code
- mechanisms supporting or implementing inspection of media used for maintenance
NIST SP 800-171A, potential assessment methods and objects for 3.7.4.
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 3 points. Not meeting this requirement subtracts 3 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: 03.07.04 Maintenance Tools.
See the Rev. 2 and Rev. 3 wording word by word, or start with the status page.
Related requirements
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)