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CCE
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CCE-92674-1

Platform: cpe:/o:ubuntu:ubuntu_linux:18.04Date: (C)2019-11-07   (M)2023-07-04



Set system audit so that audit rules cannot be modified with auditctl. Setting the flag -e 2 forces audit to be put in immutable mode. Audit changes can only be made on system reboot. Rationale: In immutable mode, unauthorized users cannot execute changes to the audit system to potentially hide malicious activity and then put the audit rules back. Users would most likely notice a system reboot and that could alert administrators of an attempt to make unauthorized audit changes.


Parameter:

[yes/no]


Technical Mechanism:

Add the following lines to the /etc/audit/audit.rules file. -e 2 Note: This must be the last line in the /etc/audit/audit.rules file

CCSS Severity:CCSS Metrics:
CCSS Score : 7.1Attack Vector: LOCAL
Exploit Score: 1.8Attack Complexity: LOW
Impact Score: 5.2Privileges Required: LOW
Severity: HIGHUser Interaction: NONE
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:HScope: UNCHANGED
 Confidentiality: NONE
 Integrity: HIGH
 Availability: HIGH
  

References:
Resource IdReference
SCAP Repo OVAL Definitionoval:org.secpod.oval:def:51273


OVAL    1
oval:org.secpod.oval:def:51273
XCCDF    1
xccdf_org.secpod_benchmark_general_Ubuntu_18_04

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