# CVE-2023-35794: Auth bypass in n/a

> Attackers can access the Web SSH terminal without authentication due to missing session validation, potentially gaining remote code execution.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 27 Oct 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-phrf-fj83-fcfv

## What is CVE-2023-35794?

CVE-2023-35794 is a high-severity authentication bypass vulnerability in n/a, published on 27 Oct 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An issue was discovered in Cassia Access Controller 2.1.1.2303271039. The Web SSH terminal endpoint (spawned console) can be accessed without authentication. Specifically, there is no session cookie validation on the Access Controller; instead, there is only Basic Authentication to the SSH console.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2023-35794?

It affects 1 product.


Products: Cassianetworks Access Controller.

## How do I fix CVE-2023-35794?

No fix has been published for CVE-2023-35794 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-35794 being exploited?

There is no known exploitation of CVE-2023-35794 in the wild and no public exploit code.

Public exploit code:

- Repository contains description for CVE-2023-35794 discovered by Dodge Industrial Team for Dodge OPTIFY platfrom. (github_poc): https://github.com/Dodge-MPTC/CVE-2023-35794-WebSSH-Hijacking

## Other vulnerabilities in n/a

- [CVE-2023-35793](https://insights.sbomify.com/CVE-2023-35793/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2021-22685](https://insights.sbomify.com/CVE-2021-22685/): Cassia Networks Access Controller Path Traversal (medium 6.2)
- [CVE-2023-31445](https://insights.sbomify.com/CVE-2023-31445/): Information disclosure in n/a (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-35794 and fix it if it is affected.

What it is: CVE-2023-35794 is a high-severity authentication bypass vulnerability in n/a, published on 27 Oct 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-35794 in the wild and no public exploit code.

Affected product: n/a. 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-2023-35794/ (Markdown: https://insights.sbomify.com/CVE-2023-35794/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-35794
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-35794
- OSV: https://osv.dev/vulnerability/CVE-2023-35794

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-35794/
Summaries are generated and may contain mistakes; the official description above is the record.