12) Checking CRON Jobs Automatically

The auditor should check who is allowed and forbidden to perform tasks in cron. Access to cron is controlled using the /etc/cron.allow and /etc/cron.deny files .

# echo ALL >> / etc / cron.deny

13) Checking SELINUX Forced Security

During the audit, it is important to check the status of SELinux . This mechanism must be enabled in the system.
There are three SELinux modes :
Enforcing: SELinux policy is enforced. SELinux denies access based on SELinux policy rules.
Permissive: SELinux policy is not forced. SELinux does not block access, but bans are logged as actions that would be banned if the policy were enforced.
Disabled: SELinux is disabled. Only discrete DAC rules are used.
During the audit, you can use the following script to check SELinux status or use the system-configselinux, getenforce, or sestatus commands:
ENABLED = cat / selinux / enforce
if [“ $ ENABLED ”== 1]; then
echo “SELinux is enabled, disable? (yes / no): ”
read disable
if [$ disable ==“ yes ”]; then
echo “disabling selinux”
setenforce 0
fi
fi


🦑 LBSA script for checking basic security options
LBSA (Linux Basic Security Audit script) is a basic security configuration audit script for Linux systems. The script should be run from the command line with root privileges , or ideally run on a schedule on a regular basis using the cron scheduler to systematically check configuration changes.

» The purpose of this script is an express audit of security settings and uploading a report with a description of possible parameters that can be changed to provide a higher degree of security. In the case, if there are no recommendations for any option, the script simply displays one line with working out the check, and the final decision is always up to the administrator. Before starting the test, the developers strongly recommend that you read the manual and study the recommended sections for more information.

Written by Underc0de
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