# CVE-2017-8340: Missing authorization in n/a

> Attackers can bypass access controls in OX App Suite to read or modify unauthorized data.

- **Severity:** High 8.8 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 22 May 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-fq22-mvgh-649f

## What is CVE-2017-8340?

CVE-2017-8340 is a high-severity missing authorization vulnerability in Open-Xchange Open-Xchange Appsuite, published on 22 May 2019. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Open-Xchange GmbH OX App Suite 7.8.3 and earlier is affected by: Incorrect Access Control.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2017-8340?

It affects 1 product.


Products: Open-Xchange Open-Xchange Appsuite.

## How do I fix CVE-2017-8340?

No fix has been published for CVE-2017-8340 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-8340 being exploited?

There is no known exploitation of CVE-2017-8340 in the wild and no public exploit code.

## Other vulnerabilities in Open-Xchange Open-Xchange Appsuite

- [CVE-2017-13667](https://insights.sbomify.com/CVE-2017-13667/): Server-side request forgery in n/a (critical 9.9)
- [CVE-2020-12645](https://insights.sbomify.com/CVE-2020-12645/): Denial of service in n/a (critical 9.8)
- [CVE-2019-7158](https://insights.sbomify.com/CVE-2019-7158/): Missing authorization in n/a (critical 9.8)
- [CVE-2017-17060](https://insights.sbomify.com/CVE-2017-17060/): Misconfiguration in n/a (critical 9.8)
- [CVE-2017-5210](https://insights.sbomify.com/CVE-2017-5210/): Information disclosure in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-8340 and fix it if it is affected.

What it is: CVE-2017-8340 is a high-severity missing authorization vulnerability in Open-Xchange Open-Xchange Appsuite, published on 22 May 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-2017-8340 in the wild and no public exploit code.

Affected product: Open-Xchange Open-Xchange Appsuite. 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-2017-8340/ (Markdown: https://insights.sbomify.com/CVE-2017-8340/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-8340
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-8340
- OSV: https://osv.dev/vulnerability/CVE-2017-8340

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-8340/
Summaries are generated and may contain mistakes; the official description above is the record.