CISA Mandates Removal of Unsupported Edge Devices to Bolster Federal Network Security
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has issued a directive to Federal Civilian Executive Branch (FCEB) agencies, emphasizing the need to enhance asset lifecycle management for edge network devices. This initiative mandates the removal of devices that no longer receive security updates from original equipment manufacturers (OEMs) within a timeframe of 12 to 18 months.
This proactive measure aims to mitigate technical debt and reduce the risk of network compromises, especially as state-sponsored threat actors increasingly target such devices as entry points into federal networks.
Understanding Edge Devices
Edge devices encompass a broad range of hardware and software components that manage network traffic and possess privileged access. These include:
– Load balancers
– Firewalls
– Routers
– Switches
– Wireless access points
– Network security appliances
– Internet of Things (IoT) edge devices
– Software-defined networks
Given their critical role at the network perimeter, these devices are particularly susceptible to exploitation if they are outdated and lack current security patches.
The Rising Threat of Unsupported Devices
CISA has observed a troubling trend where cyber adversaries exploit unsupported edge devices—those that no longer receive firmware updates or security patches from vendors. Such devices, positioned at the network’s edge, present attractive targets for persistent cyber threat actors who exploit both new and known vulnerabilities.
CISA’s Strategic Response
To assist FCEB agencies in addressing this vulnerability, CISA has developed an end-of-support edge device list. This repository provides detailed information about devices that have reached or are approaching the end of their support lifecycle, including product names, version numbers, and end-of-support dates.
Under the newly issued Binding Operational Directive 26-02, titled Mitigating Risk From End-of-Support Edge Devices, FCEB agencies are required to undertake the following actions:
1. Immediate Software Updates: Update all vendor-supported edge devices running end-of-support software to versions that are currently supported.
2. Comprehensive Device Inventory: Within three months, catalog all edge devices to identify those that are end-of-support and report this information to CISA.
3. Decommissioning End-of-Support Devices: Within 12 months, remove all edge devices listed in the end-of-support device list from agency networks and replace them with devices that receive ongoing security updates.
4. Replacement of Other Identified Devices: Within 18 months, decommission all other identified end-of-support edge devices and replace them with supported alternatives.
5. Establish Lifecycle Management Processes: Within 24 months, implement a lifecycle management process to continuously discover and inventory all edge devices, ensuring timely identification of those reaching end-of-support status.
Leadership’s Perspective
CISA Acting Director Madhu Gottumukkala emphasized the critical nature of this initiative, stating, Unsupported devices pose a serious risk to federal systems and should never remain on enterprise networks. By proactively managing asset lifecycles and removing end-of-support technology, we can collectively strengthen resilience and protect the global digital ecosystem.
The Broader Implications
This directive underscores the importance of maintaining up-to-date hardware and software within federal networks. Outdated devices not only serve as potential entry points for cyber adversaries but also hinder the overall security posture of an organization.
By enforcing the removal of unsupported edge devices, CISA aims to:
– Enhance Network Security: Ensure that all devices within the network perimeter are equipped with the latest security features and patches.
– Reduce Technical Debt: Alleviate the burden of maintaining outdated systems, allowing agencies to allocate resources more effectively.
– Mitigate Potential Threats: Proactively address vulnerabilities before they can be exploited by malicious actors.
Challenges and Considerations
While the directive sets clear timelines, agencies may face challenges in:
– Resource Allocation: Ensuring that sufficient resources are available for the timely replacement of devices.
– Operational Disruptions: Managing potential disruptions that may arise during the decommissioning and replacement processes.
– Vendor Coordination: Collaborating with vendors to procure supported devices that meet the specific needs of the agency.
Conclusion
CISA’s directive to remove unsupported edge devices is a significant step toward fortifying federal network security. By adhering to the outlined timelines and requirements, FCEB agencies can enhance their resilience against cyber threats and contribute to the broader goal of securing the nation’s digital infrastructure.
