# CVE-2021-31602: Auth bypass in n/a

> Unauthenticated attackers can extract sensitive information from Pentaho Business Intelligence Server due to insecure default security configurations.

- **Severity:** Medium 5.3 (`CVSS:3.1/AC:L/AV:N/A:N/C:L/I:N/PR:N/S:U/UI:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Nov 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-h47p-j8f8-w9wx

## What is CVE-2021-31602?

CVE-2021-31602 is a medium-severity authentication bypass vulnerability in n/a, published on 8 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue was discovered in Hitachi Vantara Pentaho through 9.1 and Pentaho Business Intelligence Server through 7.x. The Security Model has different layers of Access Control. One of these layers is the applicationContext security, which is defined in the applicationContext-spring-security.xml file. The default configuration allows an unauthenticated user with no previous knowledge of the platform settings to extract pieces of information without possessing valid credentials.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2021-31602?

It affects 2 products.


Products: Hitachi Vantara Pentaho, Hitachi Vantara Pentaho Business Intelligence Server.

## How do I fix CVE-2021-31602?

No fix has been published for CVE-2021-31602 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-31602 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-31602 exists.

Public exploit code:

- Pentaho Authentication Bypass CVE-2021-31602 (github_poc): https://github.com/0cool-design/PWNtaho
- Hitachi Vantara Pentaho/Business Intelligence Server - Authentication Bypass (nuclei): http/cves/2021/CVE-2021-31602.yaml

## 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-2021-31602 and fix it if it is affected.

What it is: CVE-2021-31602 is a medium-severity authentication bypass vulnerability in n/a, published on 8 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-31602 exists.

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-2021-31602/ (Markdown: https://insights.sbomify.com/CVE-2021-31602/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-31602
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-31602
- OSV: https://osv.dev/vulnerability/CVE-2021-31602

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-31602/
Summaries are generated and may contain mistakes; the official description above is the record.