All versions of Landis+Gyr E850 (ZMQ200) are vulnerable to CWE-784: Reliance on Cookies Without Validation and Integrity. The devices web application navigation depends on the value of the session cookie. The web application could become inaccessible for the user if an attacker changes the cookie values.
Weakness
The product uses a protection mechanism that relies on the existence or values of a cookie, but it does not properly ensure that the cookie is valid for the associated user.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| E850_firmware | Landisgyr | * | * |