Listen to this Post
The article discusses a comprehensive guide for auditing Information Systems (IS), covering key standards and frameworks like ISO 19010, COBIT, ISO 27001, ITIL, and TOGAF. The guide provides practical methods for conducting IS audits effectively.
You Should Know:
Here are essential commands and steps for auditing IT systems, aligned with the frameworks mentioned:
Linux Security Auditing Commands
1. Check Open Ports & Services
sudo netstat -tuln sudo ss -tuln
2. Audit User Permissions
sudo cat /etc/passwd sudo cat /etc/shadow sudo ls -l /etc/sudoers.d/
3. File Integrity Monitoring (FIM)
sudo apt install aide sudo aideinit sudo aide --check
4. Log Analysis with `journalctl`
journalctl -u ssh --no-pager journalctl --since "2024-01-01" --until "2024-01-31"
Windows Security Auditing
1. Check Active Ports
netstat -ano
Get-NetTCPConnection | Where-Object {$_.State -eq "Listen"}
2. Audit User Accounts
net user
Get-LocalUser | Where-Object {$_.Enabled -eq $true}
3. Check Windows Event Logs
Get-EventLog -LogName Security -Newest 50
ISO 27001 Compliance Checks
- Verify Password Policies (Linux):
sudo grep PASS_MAX_DAYS /etc/login.defs sudo chage -l <username>
- Check Firewall Rules (Windows):
netsh advfirewall show allprofiles
ITIL & COBIT Process Mapping
- Use `nmap` for network discovery:
nmap -sV -O <target_IP>
- Automate Compliance with OpenSCAP:
sudo oscap xccdf eval --profile stig-rhel7-disa /usr/share/xml/scap/ssg/content/ssg-rhel7-ds.xml
What Undercode Say
Auditing IT systems requires a structured approach combining manual checks and automated tools. Linux (auditd, lynis) and Windows (PowerShell, Event Viewer) provide built-in capabilities for security assessments. Regular log reviews, permission audits, and compliance checks (ISO 27001, NIST) ensure robust security.
Expected Output:
- A structured IT audit report.
- Remediation steps for vulnerabilities.
- Compliance status against frameworks.
Relevant URLs:
References:
Reported By: Yann Eric – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
