Securing Edge Devices with Carbon Black & Symantec: A Comprehensive Strategy
First published: 04 Feb 2025: The National Security Agency (NSA) has partnered with the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC), the Canadian Centre for Cyber Security (CCCS), and other international agencies to release three Cybersecurity Information Sheets (CSIs). These guides highlight critical mitigation strategies for securing edge device systems, including firewalls, routers, and virtual private network (VPN) gateways.
Introduction: Understanding the White Paper
The “Mitigation Strategies for Edge Devices: Practitioner Guidance” white paper provides a detailed security framework for protecting edge devices—such as routers, firewalls, and VPN concentrators—from evolving cyber threats. The report highlights how malicious actors exploit unpatched vulnerabilities, weak authentication, and misconfigurations to gain access to enterprise networks.
Published by leading cybersecurity agencies, this guide offers vendor-agnostic security recommendations that align with major frameworks like NIST, ASD, and CISA. However, while the white paper provides general guidance, organizations must implement specific tools and technologies to put these strategies into action.
This blog explores how to operationalize these recommendations using Carbon Black App Control, Carbon Black EDR, Symantec Endpoint Security (SES), and Symantec Data Centre Security (DCS). By leveraging these tools, organizations can:
✔️ Prevent unauthorized applications and malware execution
✔️ Enforce firmware integrity and secure updates
✔️ Detect and respond to advanced threats in real time
✔️ Lock down unused services and ports to reduce attack surface
✔️ Implement Zero Trust authentication and access control
Below, we dive into actionable security strategies to harden edge devices using Carbon Black & Symantec, ensuring alignment with the white paper’s best practices.
Actionable Security Strategies for Edge Devices
1. Application Control & Whitelisting
✅ Carbon Black App Control
- Implement default-deny policies to block unauthorized applications.
- Use file integrity monitoring (FIM) to detect unauthorized changes.
✅ Symantec Data Center Security (DCS) for Servers
- Lock down edge devices with policy-based application control.
- Prevent execution of untrusted scripts, macros, and binaries.
2. Secure Firmware & Updates
✅ Carbon Black App Control
- Enforce signed firmware verification and block unauthorized rollbacks.
- Maintain audit logs for patch verification.
✅ Symantec Endpoint Security (SES)
- Automatically scan updates and patches before installation.
- Use Device Control to restrict unauthorized USB firmware updates.
3. Prevent Unauthorized Changes
✅ Carbon Black App Control
- Enable tamper protection to block unauthorized configuration changes.
- Apply lockdown mode to prevent file modifications.
✅ Symantec DCS for Servers
- Implement Kernel-level protection to prevent unauthorized registry and configuration changes.
- Enforce write protection policies on critical system files.
4. Logging & Threat Detection
✅ Carbon Black EDR
- Enable real-time process monitoring to detect suspicious behavior.
- Use automated anomaly detection to identify fileless malware and zero-day attacks.
✅ Symantec SES & DCS
- Enable system-wide logging and integrate logs with SIEM solutions.
- Implement automated threat correlation for faster lateral movement detection.
5. Disable Unneeded Features
✅ Carbon Black App Control
- Block unused ports and services via policy enforcement.
- Restrict PowerShell, WMI, and script execution to limit attack surface.
✅ Symantec DCS for Servers
- Use intrusion prevention system (IPS) to block unnecessary inbound/outbound traffic.
- Enforce network isolation policies on compromised edge devices.
6. Strong Authentication & Access Control
✅ Carbon Black App Control
- Enforce Multi-Factor Authentication (MFA) for application access.
- Implement Role-Based Access Control (RBAC) to limit privileged access.
✅ Symantec SES
- Use adaptive authentication based on risk scoring (e.g., geolocation, device posture).
- Integrate with Active Directory for centralized identity management.
7. Threat Hunting & Incident Response
✅ Carbon Black EDR
- Automate real-time incident response, including quarantining compromised edge devices.
- Use behavior-based analytics to detect suspicious PowerShell executions, credential dumps, or lateral movement attempts.
✅ Symantec DCS for Servers
- Apply Host Intrusion Prevention System (HIPS) to detect advanced persistent threats (APTs).
- Enable automated rollback capabilities for ransomware remediation.
8. Centralized Management & Compliance
✅ Carbon Black Cloud Console
- Centralize security policies and enforce consistent configurations across all edge devices.
- Conduct forensic analysis on any security incidents.
✅ Symantec Integrated Cyber Defense (ICD) Platform
- Unify endpoint, network, and cloud security for real-time correlation.
- Automate compliance audits to align with industry standards (NIST, CIS, ISO).
Conclusion
The “Mitigation Strategies for Edge Devices” white paper underscores the growing risk of edge device exploitation and the need for a proactive, multi-layered defense. By integrating Carbon Black and Symantec security solutions, organizations can translate best practices into real-world cybersecurity controls that prevent, detect, and respond to threats in real-time.