# CVE-2018-4064: Auth bypass in Sierra Wireless

> An attacker can change the device user password without verification via a crafted HTTP request, leading to unauthorized access.

- **Severity:** High 7.1 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/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:** 31 Oct 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-653p-mrq2-3gw2

## What is CVE-2018-4064?

CVE-2018-4064 is a high-severity authentication bypass vulnerability in Sierra Wireless, published on 31 Oct 2019. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An exploitable unverified password change vulnerability exists in the ACEManager upload.cgi functionality of Sierra Wireless AirLink ES450 FW 4.9.3. A specially crafted HTTP request can cause a unverified device configuration change, resulting in an unverified change of the user password on the device. An attacker can make an authenticated HTTP request to trigger this vulnerability.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2018-4064?

It affects 1 product.


Products: Sierrawireless Airlink Es450 Firmware.

## How do I fix CVE-2018-4064?

No fix has been published for CVE-2018-4064 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-4064 being exploited?

There is no known exploitation of CVE-2018-4064 in the wild and no public exploit code.

## Other vulnerabilities in Sierra Wireless

- [CVE-2018-4061](https://insights.sbomify.com/CVE-2018-4061/): Command injection in Sierra Wireless (high 8.8)
- [CVE-2018-4066](https://insights.sbomify.com/CVE-2018-4066/): Cross-site request forgery in Sierra Wireless (high 8.8)
- [CVE-2018-4070](https://insights.sbomify.com/CVE-2018-4070/): Information disclosure in Sierra Wireless (high 8.8)
- [CVE-2018-4071](https://insights.sbomify.com/CVE-2018-4071/): Information disclosure in Sierra Wireless (high 8.8)
- [CVE-2018-4072](https://insights.sbomify.com/CVE-2018-4072/): Missing authorization in Sierra Wireless (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-4064 and fix it if it is affected.

What it is: CVE-2018-4064 is a high-severity authentication bypass vulnerability in Sierra Wireless, published on 31 Oct 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-4064 in the wild and no public exploit code.

Affected product: Sierra Wireless. 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-2018-4064/ (Markdown: https://insights.sbomify.com/CVE-2018-4064/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-4064
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-4064
- OSV: https://osv.dev/vulnerability/CVE-2018-4064

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-4064/
Summaries are generated and may contain mistakes; the official description above is the record.