# CVE-2019-3798: Escalation of Privileges in Cloud Controller

> An authenticated attacker can escalate privileges to a victim's level by creating a UAA client with the victim's GUID, affecting Cloud Foundry Cloud Controller users.

- **Severity:** Medium 6.0 (`CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 17 Apr 2019
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-9hx4-42jp-5rgc

## What is CVE-2019-3798?

CVE-2019-3798 is a medium-severity vulnerability in Cloud Foundry CAPI-release, published on 17 Apr 2019. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

Cloud Foundry Cloud Controller API Release, versions prior to 1.79.0, contains improper authentication when validating user permissions. A remote authenticated malicious user with the ability to create UAA clients and knowledge of the email of a victim in the foundation may escalate their privileges to that of the victim by creating a client with a name equal to the guid of their victim.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2019-3798?

It affects 1 product.


Products: Cloudfoundry Capi-Release.

## How do I fix CVE-2019-3798?

No fix has been published for CVE-2019-3798 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-3798 being exploited?

There is no known exploitation of CVE-2019-3798 in the wild and no public exploit code.

## Other vulnerabilities in Cloud Foundry CAPI-release

- [CVE-2018-1195](https://insights.sbomify.com/CVE-2018-1195/): Auth bypass in Cloud Controller (high 8.8)
- [CVE-2020-5417](https://insights.sbomify.com/CVE-2020-5417/): Cloud Controller may allow developers to claim sensitive routes (high 8.5)
- [CVE-2023-20881](https://insights.sbomify.com/CVE-2023-20881/): Missing authorization in Cloud Controller API (high 8.1)
- [CVE-2018-1266](https://insights.sbomify.com/CVE-2018-1266/): Path traversal in n/a (high 8.1)
- [CVE-2020-5400](https://insights.sbomify.com/CVE-2020-5400/): Cloud Controller logs environment variables from app manifests (high 8.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-3798 and fix it if it is affected.

What it is: CVE-2019-3798 is a medium-severity vulnerability in Cloud Foundry CAPI-release, published on 17 Apr 2019. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2019-3798 in the wild and no public exploit code.

Affected product: Cloud Foundry CAPI-release. 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-2019-3798/ (Markdown: https://insights.sbomify.com/CVE-2019-3798/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-3798
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-3798
- OSV: https://osv.dev/vulnerability/CVE-2019-3798

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-3798/
Summaries are generated and may contain mistakes; the official description above is the record.