# CVE-2023-1935: CVE-2023-1935

> Attackers can bypass authentication on Emerson ROC800-Series RTUs to gain unauthorized control or cause denial of service.

- **Severity:** Critical 9.4 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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:** 2 Aug 2023
- **Updated:** 21 Oct 2024
- **Also known as:** GHSA-7q8x-6cwc-cx3j

## What is CVE-2023-1935?

CVE-2023-1935 is a critical authentication bypass vulnerability in Emerson Electric DL8000, published on 2 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

ROC800-Series RTU devices are vulnerable to an authentication bypass, which could allow an attacker to gain unauthorized access to data or control of the device and cause a denial-of-service condition.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2023-1935?

It affects 5 products.


Products: Emerson Dl8000 Firmware, Emerson Roc809 Firmware, Emerson Roc809l Firmware, Emerson Roc827 Firmware, Emerson Roc827l Firmware.

## How do I fix CVE-2023-1935?

No fix has been published for CVE-2023-1935 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-1935 being exploited?

There is no known exploitation of CVE-2023-1935 in the wild and no public exploit code.

## Other vulnerabilities in Emerson Electric DL8000

- [CVE-2022-30264](https://insights.sbomify.com/CVE-2022-30264/): Path traversal in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-1935 and fix it if it is affected.

What it is: CVE-2023-1935 is a critical authentication bypass vulnerability in Emerson Electric DL8000, published on 2 Aug 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-2023-1935 in the wild and no public exploit code.

Affected product: Emerson Electric DL8000. 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-2023-1935/ (Markdown: https://insights.sbomify.com/CVE-2023-1935/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-1935
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-1935
- OSV: https://osv.dev/vulnerability/CVE-2023-1935

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-1935/
Summaries are generated and may contain mistakes; the official description above is the record.