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

> Improper session management allows low-privilege users to gain higher privileges on Endress+Hauser Ecograph T devices.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 19 Nov 2020
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-wvp6-r3f2-3fpj

## What is CVE-2020-12495?

CVE-2020-12495 is a critical vulnerability in Endress+Hauser ORSG35 - Ecograph T Neutral/Private Label, published on 19 Nov 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official 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.

Weakness: CWE-269 (Improper Privilege Management)

## Which versions are affected by CVE-2020-12495?

It affects 4 products.


Products: Endress Orsg35 Firmware, Endress Orsg45 Firmware, Endress Rsg35 Firmware, Endress Rsg45 Firmware.

## How do I fix CVE-2020-12495?

No fix has been published for CVE-2020-12495 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-12495 being exploited?

There is no known exploitation of CVE-2020-12495 in the wild and no public exploit code.

## Other vulnerabilities in Endress+Hauser ORSG35 - Ecograph T Neutral/Private Label

- [CVE-2020-12496](https://insights.sbomify.com/CVE-2020-12496/): Information disclosure in ORSG35 - Ecograph T Neutral/Private Label (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-12495 and fix it if it is affected.

What it is: CVE-2020-12495 is a critical vulnerability in Endress+Hauser ORSG35 - Ecograph T Neutral/Private Label, published on 19 Nov 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-12495 in the wild and no public exploit code.

Affected product: Endress+Hauser ORSG35 - Ecograph T Neutral/Private Label. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2020-12495/ (Markdown: https://insights.sbomify.com/CVE-2020-12495/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-12495
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-12495
- OSV: https://osv.dev/vulnerability/CVE-2020-12495

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-12495/
Summaries are generated and may contain mistakes; the official description above is the record.