# CVE-2017-12703: Cross-site request forgery in Westermo MRD-305-DIN, MRD-315, MRD-355, and MRD-455

> Attackers can trick users into performing unauthorized actions on Westermo industrial routers due to missing CSRF protection.

- **Severity:** High 8.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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:** A user has to click or open something
- **Fix available:** No
- **Published:** 25 Aug 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-mm9p-vhg8-49hj

## What is CVE-2017-12703?

CVE-2017-12703 is a high-severity vulnerability in Westermo MRD-305-DIN, MRD-315, MRD-355, and MRD-455, published on 25 Aug 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A Cross-Site Request Forgery (CSRF) issue was discovered in Westermo MRD-305-DIN versions older than 1.7.5.0, and MRD-315, MRD-355, MRD-455 versions older than 1.7.5.0. The application does not verify whether a request was intentionally provided by the user, making it possible for an attacker to trick a user into making a malicious request to the server.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2017-12703?

It affects 4 products.


Products: Westermo Mrd-305-Din Firmware, Westermo Mrd-315-Din Firmware, Westermo Mrd-355-Din Firmware, Westermo Mrd-455-Din Firmware.

## How do I fix CVE-2017-12703?

No fix has been published for CVE-2017-12703 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-12703 being exploited?

There is no known exploitation of CVE-2017-12703 in the wild and no public exploit code.

## Other vulnerabilities in Westermo MRD-305-DIN, MRD-315, MRD-355, and MRD-455

- [CVE-2016-5816](https://insights.sbomify.com/CVE-2016-5816/): Hardcoded credentials in n/a (high 7.5)
- [CVE-2017-12709](https://insights.sbomify.com/CVE-2017-12709/): Hardcoded credentials in Westermo MRD-305-DIN, MRD-315, MRD-355, and MRD-455 (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-12703 and fix it if it is affected.

What it is: CVE-2017-12703 is a high-severity vulnerability in Westermo MRD-305-DIN, MRD-315, MRD-355, and MRD-455, published on 25 Aug 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2017-12703 in the wild and no public exploit code.

Affected product: Westermo MRD-305-DIN, MRD-315, MRD-355, and MRD-455. 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-2017-12703/ (Markdown: https://insights.sbomify.com/CVE-2017-12703/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-12703
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-12703
- OSV: https://osv.dev/vulnerability/CVE-2017-12703

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From sbomify Insights: https://insights.sbomify.com/CVE-2017-12703/
Summaries are generated and may contain mistakes; the official description above is the record.