# CVE-2017-5142: Privilege escalation in Honeywell XL Web II Controller

> Low-privilege users can modify controller parameters via specific URLs due to improper privilege management in Honeywell XL Web II controllers.

- **Severity:** Critical 9.1 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L`)
- **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:** 13 Feb 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-65mv-26m8-4gw8

## What is CVE-2017-5142?

CVE-2017-5142 is a critical vulnerability in Honeywell XL Web II Controller, published on 13 Feb 2017. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An issue was discovered in Honeywell XL Web II controller XL1000C500 XLWebExe-2-01-00 and prior, and XLWeb 500 XLWebExe-1-02-08 and prior. A user with low privileges is able to open and change the parameters by accessing a specific URL because of Improper Privilege Management.

Weakness: CWE-269 (Improper Privilege Management)

## Which versions are affected by CVE-2017-5142?

It affects 1 product.


Products: Honeywell Xl Web Ii Controller.

## How do I fix CVE-2017-5142?

No fix has been published for CVE-2017-5142 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-5142 being exploited?

There is no known exploitation of CVE-2017-5142 in the wild and no public exploit code.

## Other vulnerabilities in Honeywell XL Web II Controller

- [CVE-2017-5139](https://insights.sbomify.com/CVE-2017-5139/): Information disclosure in Honeywell XL Web II Controller (critical 9.8)
- [CVE-2017-5140](https://insights.sbomify.com/CVE-2017-5140/): Hardcoded credentials in Honeywell XL Web II Controller (critical 9.8)
- [CVE-2017-5143](https://insights.sbomify.com/CVE-2017-5143/): Path traversal in Honeywell XL Web II Controller (high 8.6)
- [CVE-2017-5141](https://insights.sbomify.com/CVE-2017-5141/): Auth bypass in Honeywell XL Web II Controller (medium 6.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-5142 and fix it if it is affected.

What it is: CVE-2017-5142 is a critical vulnerability in Honeywell XL Web II Controller, published on 13 Feb 2017. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2017-5142 in the wild and no public exploit code.

Affected product: Honeywell XL Web II Controller. 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-2017-5142/ (Markdown: https://insights.sbomify.com/CVE-2017-5142/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-5142
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-5142
- OSV: https://osv.dev/vulnerability/CVE-2017-5142

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-5142/
Summaries are generated and may contain mistakes; the official description above is the record.