# CVE-2021-34685: File upload in n/a

> An authenticated user can upload malicious JSP files to Hitachi Vantara Pentaho Business Analytics, leading to remote code execution.

- **Severity:** Low 2.7 (`CVSS:3.1/AC:L/AV:N/A:N/C:N/I:L/PR:H/S:U/UI:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Nov 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-v548-fhp9-qm3w

## What is CVE-2021-34685?

CVE-2021-34685 is a low-severity vulnerability in n/a, published on 8 Nov 2021. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

UploadService in Hitachi Vantara Pentaho Business Analytics through 9.1 does not properly verify uploaded user files, which allows an authenticated user to upload various files of different file types. Specifically, a .jsp file is not allowed, but a .jsp. file is allowed (and leads to remote code execution).

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2021-34685?

It affects 1 product.


Products: Hitachi Vantara Pentaho.

## How do I fix CVE-2021-34685?

No fix has been published for CVE-2021-34685 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-34685 being exploited?

There is no known exploitation of CVE-2021-34685 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-34684](https://insights.sbomify.com/CVE-2021-34684/): SQL injection in n/a (critical 9.8)
- [CVE-2021-31599](https://insights.sbomify.com/CVE-2021-31599/): Code injection in n/a (high 8.8)
- [CVE-2022-4815](https://insights.sbomify.com/CVE-2022-4815/): Hitachi Vantara Pentaho Business Analytics Server - Deserialization of Untrusted Data (high 8.0)
- [CVE-2021-45447](https://insights.sbomify.com/CVE-2021-45447/): Information disclosure in Pentaho Business Analytics Server (high 7.7)
- [CVE-2021-45448](https://insights.sbomify.com/CVE-2021-45448/): Path traversal in Pentaho Business Analytics Server (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-34685 and fix it if it is affected.

What it is: CVE-2021-34685 is a low-severity vulnerability in n/a, published on 8 Nov 2021. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-34685 in the wild and no public exploit code.

Affected product: n/a. 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-2021-34685/ (Markdown: https://insights.sbomify.com/CVE-2021-34685/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-34685
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-34685
- OSV: https://osv.dev/vulnerability/CVE-2021-34685

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-34685/
Summaries are generated and may contain mistakes; the official description above is the record.