# CVE-2020-12000: Deserialization in Ignition 8 Gateway

> An attacker can exploit improper validation of serialized data in Ignition Gateway to obtain sensitive information.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Jun 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-gh6q-wrfg-c8wf

## What is CVE-2020-12000?

CVE-2020-12000 is a high-severity unsafe deserialization vulnerability in Ignition 8 Gateway, published on 9 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The affected product is vulnerable to the handling of serialized data. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data on the Ignition 8 Gateway (versions prior to 8.0.10) and Ignition 7 Gateway (versions prior to 7.9.14), allowing an attacker to obtain sensitive information.

Weakness: CWE-502 (Deserialization of Untrusted Data)

## Which versions are affected by CVE-2020-12000?

It affects 1 product.


Products: Inductiveautomation Ignition Gateway.

## How do I fix CVE-2020-12000?

No fix has been published for CVE-2020-12000 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-12000 being exploited?

There is no known exploitation of CVE-2020-12000 in the wild and no public exploit code.

## Other vulnerabilities in Ignition 8 Gateway

- [CVE-2020-14520](https://insights.sbomify.com/CVE-2020-14520/): The affected product is vulnerable to an information leak, which may allow an attacker to obtain sensitive information on the Ignition 8 (al (high 7.5)
- [CVE-2020-10644](https://insights.sbomify.com/CVE-2020-10644/): Deserialization in Ignition 8 Gateway (high 7.5)
- [CVE-2020-12004](https://insights.sbomify.com/CVE-2020-12004/): Missing authorization in Ignition 8 Gateway (high 7.5)
- [CVE-2020-10641](https://insights.sbomify.com/CVE-2020-10641/): Missing authorization in Ignition 8 Gateway (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-12000 and fix it if it is affected.

What it is: CVE-2020-12000 is a high-severity unsafe deserialization vulnerability in Ignition 8 Gateway, published on 9 Jun 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-2020-12000 in the wild and no public exploit code.

Affected product: Ignition 8 Gateway. 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-2020-12000/ (Markdown: https://insights.sbomify.com/CVE-2020-12000/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-12000
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-12000
- OSV: https://osv.dev/vulnerability/CVE-2020-12000

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-12000/
Summaries are generated and may contain mistakes; the official description above is the record.