CVE-2020-12495: ENDRESS+HAUSER: Ecograph T utilizing Webserver firmware version 1.x has improper privilege management

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-11-19 · updated 2026-06-17
Weakness: CWE-269

Description

Endress+Hauser Ecograph T (Neutral/Private Label) (RSG35, ORSG35) with Firmware version prior to V2.0.0 is prone to improper privilege management. The affected device has a web-based user interface with a role-based access system. Users with different roles have different write and read privileges. The access system is based on dynamic "tokens". The vulnerability is that user sessions are not closed correctly and a user with fewer rights is assigned the higher rights when he logs on.

Affected products

Endress Orsg35 Firmware: before 2.0.0 — fixed in 2.0.0
Endress Orsg45 Firmware: before 2.0.0 — fixed in 2.0.0
Endress Rsg35 Firmware: before 2.0.0 — fixed in 2.0.0
Endress Rsg45 Firmware: before 2.0.0 — fixed in 2.0.0

How to fix

Upgrade to a fixed version: Endress Orsg35 Firmware 2.0.0; Endress Orsg45 Firmware 2.0.0; Endress Rsg35 Firmware 2.0.0; Endress Rsg45 Firmware 2.0.0. Check the vendor advisory for mitigations.

References

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