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The latest edition of RadioCSIRT Hebdo N°9 delivers critical cybersecurity updates, expert interviews, and technical breakdowns of vulnerabilities. Key highlights include:
- Exclusive Interview: Alexandre Dulaunoy discusses the GCVE project, a European initiative to revolutionize vulnerability management.
- Pi-hole DNS Security: A deep dive into this open-source solution for network protection, SIEM integration, and practical use cases for CERT/SOC teams.
- Critical CVE Analysis: Handpicked vulnerabilities with technical context for actionable insights.
- Podcast Highlights: Emerging threats, major incidents, and cyber threat intelligence trends.
👉 Access the newsletter: https://lnkd.in/eqg2GxBN
You Should Know: Practical Cybersecurity Commands & Steps
1. Pi-hole DNS Filtering Setup
Block malicious domains and ads using Pi-hole:
Install Pi-hole on Linux curl -sSL https://install.pi-hole.net | bash Whitelist/Blacklist domains pihole -w example.com Whitelist pihole -b example.com Blacklist Check DNS queries pihole querylog
2. CVE Vulnerability Scanning
Use `nmap` and `vuls` to detect vulnerabilities:
Scan for open ports/services nmap -sV --script vulners <target_IP> Install Vuls (Linux vulnerability scanner) curl -L https://github.com/future-architect/vuls/releases/latest/download/install.sh | bash Generate reports vuls scan -report-json
3. SIEM Integration (ELK Stack)
Forward Pi-hole logs to ELK for analysis:
Install Filebeat on Pi-hole server wget https://artifacts.elastic.co/downloads/beats/filebeat/filebeat-8.x.x-amd64.deb sudo dpkg -i filebeat-.deb Configure Filebeat to send logs to ELK filebeat modules enable pihole systemctl restart filebeat
4. Windows Threat Hunting
Detect suspicious processes with PowerShell:
List processes with network connections
Get-NetTCPConnection | Select-Object OwningProcess, RemoteAddress | Sort-Object OwningProcess
Check for unsigned DLLs
Get-Process | ForEach-Object { $<em>.Modules | Where-Object { !$</em>.FileVersionInfo.IsSigned } }
What Undercode Say
Cybersecurity requires proactive measures. Pi-hole exemplifies how open-source tools can fortify networks, while CVE scanning ensures systems stay patched. Integrating DNS logs with SIEM enhances threat visibility, and Windows/Linux commands provide real-time defense. The GCVE project highlights Europe’s push for standardized vulnerability management—essential for global cyber resilience.
Expected Output:
- Pi-hole blocking ads/malware.
- Nmap/Vuls reports identifying vulnerabilities.
- ELK dashboards visualizing DNS threats.
- PowerShell logs flagging malicious processes.
Relevant URLs:
References:
Reported By: Marcfredericgomez Radiocsirt – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
