STIGQter: STIG Summary: Canonical Ubuntu 18.04 LTS Security Technical Implementation Guide Version: 2 Release: 3 Benchmark Date: 23 Apr 2021:

The Ubuntu operating system must be configured so that a file integrity tool verifies the correct operation of security functions every 30 days.

DISA Rule

SV-219344r610963_rule

Vulnerability Number

V-219344

Group Title

SRG-OS-000446-GPOS-00200

Rule Version

UBTU-18-010516

Severity

CAT II

CCI(s)

• CCI-002699 - The information system performs verification of the correct operation of organization-defined security functions: when the system is in an organization-defined transitional state; upon command by a user with appropriate privileges; and/or on an organization-defined frequency.

Weight

10

Fix Recommendation

The cron file for AIDE is fairly complex as it creates the report. This file is installed with the aide-common package and the default can be restored by copying it from another location:

# sudo cp /usr/share/aide/config/cron.daily/aide /etc/cron.daily/aide

Check Contents

Verify that Advanced Intrusion Detection Environment (AIDE) performs a verification of the operation of security functions every 30 days.

Note: A file integrity tool other than AIDE may be used, but the tool must be executed at least once per week.

Check that AIDE is being executed every 30 days or less with the following command:

# ls -al /etc/cron.daily/aide

-rwxr-xr-x 1 root root 26049 Oct 24 2014 /etc/cron.daily/aide

If the "/etc/cron.daily/aide" file does not exist or a cron job is not configured to run at least every 30 days, this is a finding.

Vulnerability Number

V-219344

Documentable

False

Rule Version

UBTU-18-010516

Severity Override Guidance

Verify that Advanced Intrusion Detection Environment (AIDE) performs a verification of the operation of security functions every 30 days.

Note: A file integrity tool other than AIDE may be used, but the tool must be executed at least once per week.

Check that AIDE is being executed every 30 days or less with the following command:

# ls -al /etc/cron.daily/aide

-rwxr-xr-x 1 root root 26049 Oct 24 2014 /etc/cron.daily/aide

If the "/etc/cron.daily/aide" file does not exist or a cron job is not configured to run at least every 30 days, this is a finding.

Check Content Reference

M

Target Key

4055

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