STIGQter: STIG Summary: Apple macOS 11 (Big Sur) Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 23 Apr 2021:

The macOS system must be configured so that log files must not contain access control lists (ACLs).

DISA Rule

SV-230760r599842_rule

Vulnerability Number

V-230760

Group Title

SRG-OS-000057-GPOS-00027

Rule Version

APPL-11-000030

Severity

CAT II

CCI(s)

• CCI-001314 - The information system reveals error messages only to organization-defined personnel or roles.
• CCI-000162 - The information system protects audit information from unauthorized access.

Weight

10

Fix Recommendation

For any log file that contains ACLs, run the following command:

/usr/bin/sudo chmod -N [audit log file]

Check Contents

To check if a log file contains ACLs, run the following commands:

/usr/bin/sudo ls -le $(/usr/bin/sudo /usr/bin/grep '^dir' /etc/security/audit_control | awk -F: '{print $2}') | /usr/bin/grep -v current

In the output from the above commands, ACLs will be listed under any file that may contain them (e.g., "0: group:admin allow list,readattr,reaadextattr,readsecurity").

If any such line exists, this is a finding.

Vulnerability Number

V-230760

Documentable

False

Rule Version

APPL-11-000030

Severity Override Guidance

To check if a log file contains ACLs, run the following commands:

/usr/bin/sudo ls -le $(/usr/bin/sudo /usr/bin/grep '^dir' /etc/security/audit_control | awk -F: '{print $2}') | /usr/bin/grep -v current

In the output from the above commands, ACLs will be listed under any file that may contain them (e.g., "0: group:admin allow list,readattr,reaadextattr,readsecurity").

If any such line exists, this is a finding.

Check Content Reference

M

Target Key

5246

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