# CVE-2023-2443: Weak cryptography in ThinManager

> Attackers can decrypt client-server traffic due to support for medium-strength ciphers in Rockwell Automation ThinManager.

- **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:** 11 May 2023
- **Updated:** 24 Jan 2025
- **Also known as:** GHSA-rf4w-vf8x-x7xx

## What is CVE-2023-2443?

CVE-2023-2443 is a high-severity vulnerability in Rockwell Automation ThinManager , published on 11 May 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Rockwell Automation ThinManager product allows the use of medium strength ciphers.  If the client requests an insecure cipher, a malicious actor could potentially decrypt traffic sent between the client and server API.

Weakness: CWE-326 (Inadequate Encryption Strength)

## Which versions are affected by CVE-2023-2443?

It affects 1 product.


Products: Rockwellautomation Thinmanager.

## How do I fix CVE-2023-2443?

No fix has been published for CVE-2023-2443 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-2443 being exploited?

There is no known exploitation of CVE-2023-2443 in the wild and no public exploit code.

## Other vulnerabilities in Rockwell Automation ThinManager 

- [CVE-2023-27855](https://insights.sbomify.com/CVE-2023-27855/): Rockwell Automation ThinManager ThinServer Path Traversal Upload (critical 9.8)
- [CVE-2024-10386](https://insights.sbomify.com/CVE-2024-10386/): Rockwell Automation FactoryTalk ThinManager Authentication Vulnerability (critical 9.3)
- [CVE-2024-5988](https://insights.sbomify.com/CVE-2024-5988/): Rockwell Automation ThinManager® ThinServer™ Improper Input Validation Vulnerability (critical 9.3)
- [CVE-2024-5989](https://insights.sbomify.com/CVE-2024-5989/): Rockwell Automation ThinManager® ThinServer™ Improper Input Validation Vulnerability (critical 9.3)
- [CVE-2024-10387](https://insights.sbomify.com/CVE-2024-10387/): Rockwell Automation FactoryTalk ThinManager Denial-of-Service Vulnerability (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-2443 and fix it if it is affected.

What it is: CVE-2023-2443 is a high-severity vulnerability in Rockwell Automation ThinManager , published on 11 May 2023. 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-2023-2443 in the wild and no public exploit code.

Affected product: Rockwell Automation ThinManager . 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-2023-2443/ (Markdown: https://insights.sbomify.com/CVE-2023-2443/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-2443
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-2443
- OSV: https://osv.dev/vulnerability/CVE-2023-2443

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-2443/
Summaries are generated and may contain mistakes; the official description above is the record.