# CVE-2020-12046: Security feature bypass in Opto 22 SoftPAC Project

> Attackers can bypass firmware signature verification to install malicious firmware on Opto 22 SoftPAC systems, leading to arbitrary code execution.

- **Severity:** Medium 5.7 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 14 May 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-vxj9-gvcj-83p2

## What is CVE-2020-12046?

CVE-2020-12046 is a medium-severity vulnerability in Opto 22 SoftPAC Project, published on 14 May 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Opto 22 SoftPAC Project Version 9.6 and prior. SoftPAC’s firmware files’ signatures are not verified upon firmware update. This allows an attacker to replace legitimate firmware files with malicious files.

Weakness: CWE-347 (Improper Verification of Cryptographic Signature)

## Which versions are affected by CVE-2020-12046?

It affects 1 product.


Products: Opto22 Softpac Project.

## How do I fix CVE-2020-12046?

No fix has been published for CVE-2020-12046 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-12046 being exploited?

There is no known exploitation of CVE-2020-12046 in the wild and no public exploit code.

## Other vulnerabilities in Opto 22 SoftPAC Project

- [CVE-2020-10620](https://insights.sbomify.com/CVE-2020-10620/): Missing authorization in Opto 22 SoftPAC Project (critical 9.8)
- [CVE-2020-10612](https://insights.sbomify.com/CVE-2020-10612/): Missing authorization in Opto 22 SoftPAC Project (critical 9.1)
- [CVE-2020-10616](https://insights.sbomify.com/CVE-2020-10616/): Other in Opto 22 SoftPAC Project (high 8.8)
- [CVE-2020-12042](https://insights.sbomify.com/CVE-2020-12042/): Path traversal in Opto 22 SoftPAC Project (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-12046 and fix it if it is affected.

What it is: CVE-2020-12046 is a medium-severity vulnerability in Opto 22 SoftPAC Project, published on 14 May 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2020-12046 in the wild and no public exploit code.

Affected product: Opto 22 SoftPAC Project. 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-2020-12046/ (Markdown: https://insights.sbomify.com/CVE-2020-12046/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-12046
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-12046
- OSV: https://osv.dev/vulnerability/CVE-2020-12046

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-12046/
Summaries are generated and may contain mistakes; the official description above is the record.