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 with system log files set to mode 640 or less permissive.

DISA Rule

SV-230843r599842_rule

Vulnerability Number

V-230843

Group Title

SRG-OS-000206-GPOS-00084

Rule Version

APPL-11-004002

Severity

CAT II

CCI(s)

• CCI-001314 - The information system reveals error messages only to organization-defined personnel or roles.

Weight

10

Fix Recommendation

For any log file that returns an incorrect permission value, run the following command:

/usr/bin/sudo chmod 640 [log file]

[log file] is the full path to the log file in question. If the file is managed by "newsyslog", find the configuration line in the directory "/etc/newsyslog.d/" or the file "/etc/newsyslog.conf" and edit the mode column to be "640" or less permissive.

If the file is managed by "aslmanager", find the configuration line in the directory "/etc/asl/" or the file "/etc/asl.conf" and add or edit the mode option to be "mode=0640" or less permissive.

Check Contents

The following commands check for log files that exist on the system and print the path to the log with the corresponding permissions. Run them from inside "/var/log":

/usr/bin/sudo stat -f '%A:%N' $(/usr/bin/grep -v '^#' /etc/newsyslog.conf | awk '{ print $1 }') 2> /dev/null
/usr/bin/sudo stat -f '%A:%N' $(/usr/bin/grep -e '^>' /etc/asl.conf /etc/asl/* | awk '{ print $2 }') 2> /dev/null

Each command may return zero or more files. If the permissions on log files are not "640" or less permissive, this is a finding.

Vulnerability Number

V-230843

Documentable

False

Rule Version

APPL-11-004002

Severity Override Guidance

The following commands check for log files that exist on the system and print the path to the log with the corresponding permissions. Run them from inside "/var/log":

/usr/bin/sudo stat -f '%A:%N' $(/usr/bin/grep -v '^#' /etc/newsyslog.conf | awk '{ print $1 }') 2> /dev/null
/usr/bin/sudo stat -f '%A:%N' $(/usr/bin/grep -e '^>' /etc/asl.conf /etc/asl/* | awk '{ print $2 }') 2> /dev/null

Each command may return zero or more files. If the permissions on log files are not "640" or less permissive, this is a finding.

Check Content Reference

M

Target Key

5246

Comments