CVE-2020-12495

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

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.

Remediation

Solution:

  • Endress+Hauser will not change this behavior. Customers are recommended to take the measures for Temporary Fix / Mitigation as described above.

Workaround:

  • Customers should configure a perimeter firewall to block traffic from untrusted networks and users to the device. These recommendations will be incorporated into the device documentation (operating instructions). Change default password for operator, service and admin account.

Category

9.1
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.35%
Vendor Advisory vde.com
Affected: Endress+Hauser RSG35 - Ecograph T
Affected: Endress+Hauser ORSG35 - Ecograph T Neutral/Private Label
Published at:
Updated at:

References

Link Tags
https://cert.vde.com/en-us/advisories/vde-2020-021 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-12495?
CVE-2020-12495 has been scored as a critical severity vulnerability.
How to fix CVE-2020-12495?
To fix CVE-2020-12495: Endress+Hauser will not change this behavior. Customers are recommended to take the measures for Temporary Fix / Mitigation as described above.
Is CVE-2020-12495 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-12495 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-12495?
CVE-2020-12495 affects Endress+Hauser RSG35 - Ecograph T, Endress+Hauser ORSG35 - Ecograph T Neutral/Private Label.
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