Description Preview
Overview
The root cause is missing authentication on critical file operation functions exposed by a proprietary protocol used by E2 Facility Management Systems, permitting unauthenticated remote callers to perform arbitrary file reads, writes, and deletions anywhere on the filesystem. Exploitation requires only network reachability to the device’s ethernet interface and no special privileges or user interaction. Impact scenarios include theft of sensitive facility data, modification or deletion of configuration and operational files, persistent compromise via planted binaries or scripts, and denial of service by removing or corrupting system files. Affected versions are firmware versions up to and including 4.11F02. The issue was credited to Armis Labs and made public 2025-07-29.
Remediation
Immediately restrict network access to the E2 device by placing it on a restricted VLAN/subnet and enforcing firewall rules so the device is not reachable from untrusted networks. Block or isolate the management protocol ports and limit management access to a trusted management network or VPN. Deploy network monitoring and IDS/IPS rules to detect anomalous file-operation traffic and review device logs for signs of compromise. Perform integrity checks and restore affected systems from known-good backups if compromise is suspected. Contact Copeland LP for vendor advisories and apply vendor-supplied firmware updates or patches as soon as they are released. As a compensating control, require administrative access only through hardened jump hosts and implement strict network segmentation and access control lists around building management systems.
References
Industry ExposureMost to leastThis section illustrates the prevalence of a specific Common Vulnerabilities and Exposures (CVE) across various industries based on customer reports. The ranking displays industries from the most to least affected by this particular vulnerability, offering valuable insight into where this CVE has been most frequently observed. This information can help organizations within these sectors prioritize their security efforts, understand their relative risk exposure compared to their peers, and focus remediation strategies where they are most needed. By understanding the industry-specific impact, organizations can make more informed decisions regarding patching, resource allocation, and overall risk management related to this CVE.
- Accommodation & Food ServicesAccommodation & Food Services: Low
- Administrative, Support, Waste Management & Remediation ServicesAdministrative, Support, Waste Management & Remediation Services: Low
- Agriculture, Forestry Fishing & HuntingAgriculture, Forestry Fishing & Hunting: Low
- Arts, Entertainment & RecreationArts, Entertainment & Recreation: Low
- ConstructionConstruction: Low
- Educational ServicesEducational Services: Low
- Finance and InsuranceFinance and Insurance: Low
- Health Care & Social AssistanceHealth Care & Social Assistance: Low
- InformationInformation: Low
- Management of Companies & EnterprisesManagement of Companies & Enterprises: Low
- ManufacturingManufacturing: Low
- MiningMining: Low
- Other Services (except Public Administration)Other Services (except Public Administration): Low
- Professional, Scientific, & Technical ServicesProfessional, Scientific, & Technical Services: Low
- Public AdministrationPublic Administration: Low
- Real Estate Rental & LeasingReal Estate Rental & Leasing: Low
- Retail TradeRetail Trade: Low
- Transportation & WarehousingTransportation & Warehousing: Low
- UtilitiesUtilities: Low
- Wholesale TradeWholesale Trade: Low
