# CVE-2016-6813: Missing authorization in Apache CloudStack

> An attacker can reset API keys for other users by guessing their IDs, leading to unauthorized account access and resource exposure.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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:** Not needed
- **Fix available:** No
- **Published:** 6 Feb 2018
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-hrqr-xjpc-vfrf

## What is CVE-2016-6813?

CVE-2016-6813 is a critical missing authorization vulnerability in Apache Cloudstack, published on 6 Feb 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Apache CloudStack 4.1 to 4.8.1.0 and 4.9.0.0 contain an API call designed to allow a user to register for the developer API. If a malicious user is able to determine the ID of another (non-"root") CloudStack user, the malicious user may be able to reset the API keys for the other user, in turn accessing their account and resources.

## Which versions are affected by CVE-2016-6813?

It affects 1 product.


Products: Apache Cloudstack.

## How do I fix CVE-2016-6813?

No fix has been published for CVE-2016-6813 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-6813 being exploited?

There is no known exploitation of CVE-2016-6813 in the wild and no public exploit code.

## Other vulnerabilities in Apache Cloudstack

- [CVE-2012-4501](https://insights.sbomify.com/CVE-2012-4501/): Missing authorization in n/a (critical 10.0)
- [CVE-2024-38346](https://insights.sbomify.com/CVE-2024-38346/): Apache CloudStack: Unauthenticated cluster service port leads to remote execution (critical 9.8)
- [CVE-2024-39864](https://insights.sbomify.com/CVE-2024-39864/): Apache CloudStack: Integration API service uses dynamic port when disabled (critical 9.8)
- [CVE-2024-29006](https://insights.sbomify.com/CVE-2024-29006/): Apache CloudStack: x-forwarded-for HTTP header parsed by default (critical 9.8)
- [CVE-2022-35741](https://insights.sbomify.com/CVE-2022-35741/): Apache CloudStack SAML Single Sign-On XXE (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-6813 and fix it if it is affected.

What it is: CVE-2016-6813 is a critical missing authorization vulnerability in Apache Cloudstack, published on 6 Feb 2018. 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-2016-6813 in the wild and no public exploit code.

Affected product: Apache Cloudstack. 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-2016-6813/ (Markdown: https://insights.sbomify.com/CVE-2016-6813/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-6813
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-6813
- OSV: https://osv.dev/vulnerability/CVE-2016-6813

---
From sbomify Insights: https://insights.sbomify.com/CVE-2016-6813/
Summaries are generated and may contain mistakes; the official description above is the record.