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Son 2 gün içerisinde 3 kritik güvenlik açığı tespitim onaylandı. Her biri sistem bütünlüğü ve kullanıcı güvenliği açısından oldukça önemliydi.
You Should Know:
1. Vulnerability Scanning with Nmap
Use Nmap to detect open ports and services that may expose vulnerabilities:
nmap -sV --script vuln <target_IP>
2. Patch Management on Linux
Ensure all security patches are applied immediately:
sudo apt update && sudo apt upgrade -y
3. Windows Security Updates
Force Windows updates via PowerShell:
Install-Module PSWindowsUpdate -Force Get-WindowsUpdate -Install -AcceptAll -AutoReboot
4. SQL Injection Prevention
Test for SQLi vulnerabilities using SQLmap:
sqlmap -u "http://example.com/page?id=1" --risk=3 --level=5
5. Log Analysis for Intrusion Detection
Check suspicious login attempts in Linux auth logs:
grep "Failed password" /var/log/auth.log
6. Firewall Hardening
Block suspicious IPs using UFW (Linux):
sudo ufw deny from <malicious_IP>
7. Exploit Testing with Metasploit
Verify vulnerabilities using Metasploit Framework:
msfconsole use exploit/multi/handler set payload windows/x64/meterpreter/reverse_tcp set LHOST <your_IP> exploit
8. Secure SSH Access
Disable root login and enforce key-based authentication:
sudo nano /etc/ssh/sshd_config PermitRootLogin no PasswordAuthentication no
9. Malware Scanning with ClamAV
Scan for malware on Linux systems:
sudo clamscan -r --bell -i /
10. Web Application Firewall (WAF) Rules
Implement ModSecurity rules for Apache:
sudo apt install libapache2-mod-security2 sudo mv /etc/modsecurity/modsecurity.conf-recommended /etc/modsecurity/modsecurity.conf
What Undercode Say:
Critical vulnerabilities threaten system integrity and user security. Immediate patching, proactive scanning, and strict access controls are essential. Ethical hacking tools like Nmap, SQLmap, and Metasploit help identify flaws before attackers exploit them. Continuous monitoring and hardening of firewalls, SSH, and web applications reduce breach risks.
Prediction:
As cyber threats evolve, automated vulnerability scanning and AI-driven security tools will become standard in preventing zero-day exploits.
Expected Output:
- Nmap scan results
- Patched system logs
- Blocked malicious IPs in UFW
- SQLmap vulnerability report
- Metasploit session logs
- ClamAV malware detection log
IT/Security Reporter URL:
Reported By: Egemenakcay Infosec – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
