New NachoVPN Attack: Rogue VPN Servers Installing Malicious Updates ️

👾 Hacker Alert! A newly discovered set of vulnerabilities, dubbed NachoVPN, is making headlines. These flaws allow rogue VPN servers to exploit unpatched SonicWall NetExtender and Palo Alto Networks GlobalProtect SSL-VPN clients, installing malicious updates and compromising security.

Threat actors can trick victims into connecting their VPN clients to attacker-controlled servers. This is often done via: 📧 Phishing emails 📜 Malicious documents 🌐 Compromised websites

Once connected, the rogue VPN endpoints can: 🔑 Steal login credentials 💻 execute arbitrary code with elevated privileges 📦 Install malicious software disguised as updates 🔐 Install forged root certificates for Man-in-the-Middle (MitM) or code-signing attacks

🗓️ Reported: May 2024 🛡️ Patch Released: July 2024 📥 Recommended Action: Update to NetExtender Windows 10.2.341 or higher.

🗓️ Reported: April 2024 🛡️ Patch Released: November 2024 📥 Recommended Action: Update to GlobalProtect 6.2.6 or later, or run the client in FIPS-CC mode for additional mitigation.

On Tuesday, Hacker introduced an open-source tool called NachoVPN: 🌐 Platform-agnostic — detects various VPN clients ⚙️ Extensible — allows community contributions 🔑 Supported VPNs:

🛡️ Cisco AnyConnect🛡️ SonicWall NetExtender🛡️ Palo Alto GlobalProtect🛡️ Ivanti Connect Secure

💡 AmberWolf’s GitHub page provides detailed documentation and advisories for: 🔗 Attack vectors 🔗 Technical breakdown 🔗 Defense recommendations

🔄 Update Your VPN Clients: Ensure you’re running the latest patched versions.🚫 Avoid Suspicious Links: Be cautious with unexpected emails, documents, and websites.🏛️ Enforce Security Policies: Use FIPS-CC mode or similar security protocols.🧑💻 Monitor Network Activity: Watch for unusual VPN connections or credential misuse.

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