# Ensure the audit log file directory mode is configured

Necessity: The auditd log directory contains critical security information about events occurring on the system. Improper permissions could allow unauthorized users to view sensitive log data or, more critically, modify or delete logs to conceal malicious activity. Restricting access is essential for maintaining the confidentiality and integrity of the audit trail, which is fundamental for forensic analysis and incident response. An untrustworthy audit log undermines the entire security monitoring framework. 

Auditing and Remediation: The audit script verifies the current file system permissions of the audit log directory by locating it and using 'stat' to report the octal mode. The remediation script uses the 'chmod' command to set the directory's permissions to a secure, specified octal mode, ensuring that access controls align with security policy. 

Recommended State Rationale: 
- Basic ['0750']: This state allows the root user full control, a designated administrative group read and execute permissions for monitoring, and denies access to all other users. It provides a strong baseline that balances security with operational accessibility for monitoring tools or personnel. 
- Moderate ['0700']: This state significantly increases security by restricting all access (read, write, execute) exclusively to the root user. It prevents any other user or group, including administrative ones, from accessing the logs, thereby strengthening confidentiality and integrity. 
- Strict ['0700']: This is the most secure and widely recommended configuration (e.g., by CIS Benchmarks). By limiting access solely to root, it provides the strongest possible guarantee against unauthorized viewing or tampering, ensuring the audit trail remains pristine and trustworthy for any investigation.

## Recommended State Configuration

| Security Level | Value |
|----------------|-------|
| **Basic** | `['0750']` |
| **Moderate** | `['0700']` |
| **Strict** | `['0700']` |
| **Type** | `ENUM` |

## Audit Script Working

Bash script that determines the audit log directory. This is typically '/var/log/audit', but the script should confirm by parsing the directory path from the 'log_file' setting in '/etc/audit/auditd.conf'. The script must then use 'stat -c "%a"' on that directory to retrieve its permissions. The script's output must be only the octal value (e.g., '0750') with no additional text or formatting.

## Remediation Script Working

Bash script that accepts a single positional command-line argument representing the desired octal permission mode (e.g., '0700'). The script must determine the audit log directory by parsing '/etc/audit/auditd.conf', defaulting to '/var/log/audit' if the setting is not found. It must then apply the specified mode to that directory using the 'chmod' command. The script must output the string 'true' upon successful completion or 'false' if an error occurs.

