CVE-2026-3611: Honeywell IQ4E, заобикаляне на вход и права

Описание

Оригинално описание

The Honeywell IQ4x building management controller, exposes its full web-based HMI without authentication in its factory-default configuration. With no user module configured, security is disabled by design and the system operates under a System Guest (level 100) context, granting read/write privileges to any party able to reach the HTTP interface. Authentication controls are only enforced after a web user is created via U.htm, which dynamically enables the user module. Because this function is accessible prior to authentication, a remote user can create a new account with administrative read/write permissions enabling the user module and imposing authentication under attacker-controlled credentials. This action can effectively lock legitimate operators out of local and web-based configuration and administration.

Засегнати продукти

• Honeywell IQ4E: v3.50_3.44 до 4.36 (build 4.3.7.9)
• Honeywell IQ412: v3.50_3.44 до 4.36 (build 4.3.7.9)
• Honeywell IQ422: v3.50_3.44 до 4.36 (build 4.3.7.9)
• Honeywell IQ4NC: v3.50_3.44 до 4.36 (build 4.3.7.9)
• Honeywell IQ41x: v3.50_3.44 до 4.36 (build 4.3.7.9)
• Honeywell IQ3: v3.50_3.44 до 4.36 (build 4.3.7.9)
• Honeywell IQECO: v3.50_3.44 до 4.36 (build 4.3.7.9)

Вид слабост

• CWE-306 Липсваща автентикация за критична функционалност

История

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-3611
• https://nvd.nist.gov/vuln/detail/CVE-2026-3611
• https://www.cisa.gov/news-events/ics-advisories/icsa-26-069-03
• https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-069-03.json
• https://www.honeywell.com/us/en/contact