# CVE-2023-33294: Command injection in n/a

> A local web server in KaiOS allows remote attackers to execute arbitrary Bash commands as root via browser requests, enabling data theft and system modification.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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:** 22 May 2023
- **Updated:** 21 Jan 2025
- **Also known as:** GHSA-vc96-4fr5-fvv6

## What is CVE-2023-33294?

CVE-2023-33294 is a critical command injection vulnerability in n/a, published on 22 May 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue was discovered in KaiOS 3.0 before 3.1. The /system/bin/tctweb_server binary exposes a local web server that responds to GET and POST requests on port 2929. The server accepts arbitrary Bash commands and executes them as root. Because it is not permission or context restricted and returns proper CORS headers, it's accessible to all websites via the browser. At a bare minimum, this allows an attacker to retrieve a list of the user's installed apps, notifications, and downloads. It also allows an attacker to delete local files and modify system properties including the boolean persist.moz.killswitch property (which would render the device inoperable). This vulnerability is partially mitigated by SELinux which prevents reads, writes, or modifications to files or permissions within protected partitions.

Weakness: CWE-77 (Improper Neutralization of Special Elements used in a Command)

## Which versions are affected by CVE-2023-33294?

It affects 1 product.


Products: Kaiostech Kaios.

## How do I fix CVE-2023-33294?

No fix has been published for CVE-2023-33294 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-33294 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-33294 exists.

## Other vulnerabilities in n/a

- [CVE-2019-7386](https://insights.sbomify.com/CVE-2019-7386/): Memory corruption in n/a (medium 6.5)
- [CVE-2019-14756](https://insights.sbomify.com/CVE-2019-14756/): Cross-site scripting in n/a (medium 6.1)
- [CVE-2019-14757](https://insights.sbomify.com/CVE-2019-14757/): Cross-site scripting in n/a (medium 6.1)
- [CVE-2019-14758](https://insights.sbomify.com/CVE-2019-14758/): Cross-site scripting in n/a (medium 6.1)
- [CVE-2023-33293](https://insights.sbomify.com/CVE-2023-33293/): Information disclosure in n/a (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-33294 and fix it if it is affected.

What it is: CVE-2023-33294 is a critical command injection vulnerability in n/a, published on 22 May 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-33294 exists.

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-2023-33294/ (Markdown: https://insights.sbomify.com/CVE-2023-33294/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-33294
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-33294
- OSV: https://osv.dev/vulnerability/CVE-2023-33294

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-33294/
Summaries are generated and may contain mistakes; the official description above is the record.