# CVE-2017-5254: Privilege escalation in ePMP

> Low-privileged users can escalate to admin by disabling client-side protections to change other users' passwords in Cambium ePMP firmware.

- **Severity:** High 8.8 (`CVSS:3.0/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:** 20 Dec 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-c8wj-4p37-jwxf

## What is CVE-2017-5254?

CVE-2017-5254 is a high-severity vulnerability in Cambium Networks ePMP, published on 20 Dec 2017. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

In version 3.5 and prior of Cambium Networks ePMP firmware, the non-administrative users 'installer' and 'home' have the capability of changing passwords for other accounts, including admin, after disabling a client-side protection mechanism.

Weakness: CWE-269 (Improper Privilege Management), CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2017-5254?

It affects 2 products.


Products: Cambiumnetworks Epmp 1000 Firmware, Cambiumnetworks Epmp 2000 Firmware.

## How do I fix CVE-2017-5254?

No fix has been published for CVE-2017-5254 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-5254 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-5254 exists.

Public exploit code:

- Cambium ePMP 1000 Account Password Reset (metasploit)

## Other vulnerabilities in Cambium Networks ePMP

- [CVE-2017-5255](https://insights.sbomify.com/CVE-2017-5255/): Command injection in ePMP (high 8.8)
- [CVE-2017-5256](https://insights.sbomify.com/CVE-2017-5256/): Cross-site scripting in ePMP (medium 5.4)
- [CVE-2017-5257](https://insights.sbomify.com/CVE-2017-5257/): Cross-site scripting in ePMP (medium 5.4)
- [CVE-2017-5258](https://insights.sbomify.com/CVE-2017-5258/): Cross-site scripting in ePMP (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-5254 and fix it if it is affected.

What it is: CVE-2017-5254 is a high-severity vulnerability in Cambium Networks ePMP, published on 20 Dec 2017. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-5254 exists.

Affected product: Cambium Networks ePMP. 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-2017-5254/ (Markdown: https://insights.sbomify.com/CVE-2017-5254/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-5254
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-5254
- OSV: https://osv.dev/vulnerability/CVE-2017-5254

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-5254/
Summaries are generated and may contain mistakes; the official description above is the record.