# CVE-2017-20082: JUNG Smart Visu Server backdoor

> A backdoor in JUNG Smart Visu Server allows local attackers to bypass authentication and potentially execute arbitrary code, requiring an upgrade to the latest version.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Jun 2022
- **Updated:** 15 Apr 2025
- **Also known as:** GHSA-232w-9qhw-4pxx

## What is CVE-2017-20082?

CVE-2017-20082 is a medium-severity authentication bypass vulnerability in JUNG Smart Visu Server, published on 22 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability, which was classified as problematic, has been found in JUNG Smart Visu Server 1.0.804/1.0.830/1.0.832. This issue affects some unknown processing. The manipulation leads to backdoor. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used. Upgrading to version 1.0.900 is able to address this issue. It is recommended to upgrade the affected component.

Weakness: CWE-912 (Hidden Functionality)

## Which versions are affected by CVE-2017-20082?

It affects 1 product.


Products: Jung-Group Smart Visu Server Firmware.

## How do I fix CVE-2017-20082?

No fix has been published for CVE-2017-20082 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-20082 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-20082 exists.

## Other vulnerabilities in JUNG Smart Visu Server

- [CVE-2026-26234](https://insights.sbomify.com/CVE-2026-26234/): JUNG Smart Visu Server - Improper Neutralization of HTTP Headers for Scripting Syntax (high 8.7)
- [CVE-2026-26235](https://insights.sbomify.com/CVE-2026-26235/): JUNG Smart Visu Server 1.1.1050 - 'JUNG Smart Visu Server' Missing Authentication (high 8.7)
- [CVE-2017-20083](https://insights.sbomify.com/CVE-2017-20083/): JUNG Smart Visu Server SSH Server backdoor (medium 5.3)
- [CVE-2017-20084](https://insights.sbomify.com/CVE-2017-20084/): JUNG Smart Visu Server KNX Group Address backdoor (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-20082 and fix it if it is affected.

What it is: CVE-2017-20082 is a medium-severity authentication bypass vulnerability in JUNG Smart Visu Server, published on 22 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-20082 exists.

Affected product: JUNG Smart Visu Server. 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-2017-20082/ (Markdown: https://insights.sbomify.com/CVE-2017-20082/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-20082
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-20082
- OSV: https://osv.dev/vulnerability/CVE-2017-20082

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-20082/
Summaries are generated and may contain mistakes; the official description above is the record.