# CVE-2021-27437: Hardcoded credentials in WISE-PaaS/RMM

> Attackers can use hard-coded administrator credentials to access Grafana APIs and obtain sensitive information from the WISE-PaaS dashboard without authentication.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 7 May 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-6h82-hhr3-9q29

## What is CVE-2021-27437?

CVE-2021-27437 is a critical vulnerability in WISE-PaaS/RMM, published on 7 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The affected product allows attackers to obtain sensitive information from the WISE-PaaS dashboard. The system contains a hard-coded administrator username and password that can be used to query Grafana APIs. Authentication is not required for exploitation on the WISE-PaaS/RMM (versions prior to 9.0.1).

Weakness: CWE-798 (Use of Hard-coded Credentials)

## Which versions are affected by CVE-2021-27437?

It affects 1 product.


Products: Advantech Wise-Paas\/Rmm.

## How do I fix CVE-2021-27437?

No fix has been published for CVE-2021-27437 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-27437 being exploited?

There is no known exploitation of CVE-2021-27437 in the wild and no public exploit code.

## Other vulnerabilities in WISE-PaaS/RMM

- [CVE-2019-13547](https://insights.sbomify.com/CVE-2019-13547/): Missing authorization in Advantech WISE-PaaS/RMM (critical 9.8)
- [CVE-2019-13551](https://insights.sbomify.com/CVE-2019-13551/): Path traversal in Advantech WISE-PaaS/RMM (critical 9.8)
- [CVE-2019-18227](https://insights.sbomify.com/CVE-2019-18227/): XML external entity in Advantech WISE-PaaS/RMM (high 7.5)
- [CVE-2019-18229](https://insights.sbomify.com/CVE-2019-18229/): SQL injection in Advantech WISE-PaaS/RMM (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-27437 and fix it if it is affected.

What it is: CVE-2021-27437 is a critical vulnerability in WISE-PaaS/RMM, published on 7 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-27437 in the wild and no public exploit code.

Affected product: WISE-PaaS/RMM. 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-2021-27437/ (Markdown: https://insights.sbomify.com/CVE-2021-27437/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-27437
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-27437
- OSV: https://osv.dev/vulnerability/CVE-2021-27437

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-27437/
Summaries are generated and may contain mistakes; the official description above is the record.