ICS Advisories

Risk evaluation

Two memory-safety vulnerabilities in the PHP runtime bundled with SMART EMS allow an unauthenticated remote attacker to execute arbitrary code in the context of the PHP web worker. All SMART EMS versions up to and including v3.5.3 are affected. Exploitability and reliability depend on the PHP server interface, configuration, application behaviour, and worker reuse.

Mitigation summary

Do not expose the SMART EMS Web UI directly to the internet or other untrusted networks. Restrict access to trusted administrator workstations through network segmentation, firewall rules, or a VPN. Where operationally possible, enforce `memory_limit=-1` administratively and restart all PHP workers. Use a container or cgroup memory limit as an availability boundary and enforce conservative request-size, input, multipart-part, header, and nesting limits at the frontend. If multipart form data is not required, block such requests before they reach PHP. These measures reduce exposure to confirmed attack paths but are not a complete mitigation.