NIST Special Publication 800-171 Revision 2
Date Published: January 28th, 2021
Withdrawn on May 14, 2024. Superseded by SP 800-171 Rev. 3
Author(s): Ron Ross (NIST), Victoria Pillitteri (NIST), Kelley Dempsey (NIST), Mark Riddle (NARA), Gary Guissanie (IDA)
Note: A Class Deviation is in effect as of May 2, 2024 (DEVIATION 2024O0013). The deviation clause requires contractors, who are subject to 252.204-7012, to comply with National Institute of Standards and Technology (NIST) Special Publication (SP) 800-171 Revision 2, instead of the version of NIST SP 800-171 in effect at the time the solicitation is issued or as authorized by the contracting officer. Click Here
AC-3.3.8 Protect audit information and audit logging tools from unauthorized access, modification, and deletion.
Control Family: Audit and Accountability
Control Type: Derived
SPRS Value: 1
SPRS Supplemental Guidance:
N/A
CMMC Level(s):
AU.L2-3.3.7
Top Ten Failed Requirement:
No
Referenced in:
DFARS 252.204-7012
Derived From: NIST SP 800-53r4
AU-9
NIST Supplemental Guidance:
N/A
Discussion:
Audit information includes all information (e.g., audit records, audit log settings, and audit reports) needed to successfully audit system activity. Audit logging tools are those programs and devices used to conduct audit and logging activities. This requirement focuses on the technical protection of audit information and limits the ability to access and execute audit logging tools to authorized individuals. Physical protection of audit information is addressed by media protection and physical and environmental protection requirements.
Upon assessment, assessors must determine if-
3.3.8[a] audit information is protected from unauthorized access.
3.3.8[b] audit information is protected from unauthorized modification.
3.3.8[c] audit information is protected from unauthorized deletion.
3.3.8[d] audit logging tools are protected from unauthorized access.
3.3.8[e] audit logging tools are protected from unauthorized modification.
3.3.8[f] audit logging tools are protected from unauthorized deletion.
Assessors are instructed to-
Examine: [SELECT FROM: Audit and accountability policy; access control policy and procedures; procedures addressing protection of audit information; system security plan; system design documentation; system configuration settings and associated documentation, system audit logs and records; audit logging tools; other relevant documents or records].
Interview: [SELECT FROM: Personnel with audit and accountability responsibilities; personnel with information security responsibilities; system or network administrators; system developers].
Test: [SELECT FROM: Mechanisms implementing audit information protection].