# CVE-2019-3784: Cloud Foundry Stratos contains a Session Collision Vulnerability

> An authenticated attacker can hijack another user's session by exploiting session ID collisions in the default SQLite database configuration.

- **Severity:** High 8.2 (`CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N`)
- **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:** 7 Mar 2019
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-7mqj-h5x5-v4fc

## What is CVE-2019-3784?

CVE-2019-3784 is a high-severity authentication bypass vulnerability in Cloud Foundry Stratos, published on 7 Mar 2019. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Cloud Foundry Stratos, versions prior to 2.3.0, contains an insecure session that can be spoofed. When deployed on cloud foundry with multiple instances using the default embedded SQLite database, a remote authenticated malicious user can switch sessions to another user with the same session id.

Weakness: CWE-384 (Session Fixation)

## Which versions are affected by CVE-2019-3784?

It affects 1 product.


Products: Cloudfoundry Stratos.

## How do I fix CVE-2019-3784?

No fix has been published for CVE-2019-3784 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-3784 being exploited?

There is no known exploitation of CVE-2019-3784 in the wild and no public exploit code.

## Other vulnerabilities in Cloud Foundry Stratos

- [CVE-2019-3783](https://insights.sbomify.com/CVE-2019-3783/): Cloud Foundry Stratos Deploys With Public Default Session Store Secret (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-3784 and fix it if it is affected.

What it is: CVE-2019-3784 is a high-severity authentication bypass vulnerability in Cloud Foundry Stratos, published on 7 Mar 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-2019-3784 in the wild and no public exploit code.

Affected product: Cloud Foundry Stratos. 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-2019-3784/ (Markdown: https://insights.sbomify.com/CVE-2019-3784/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-3784
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-3784
- OSV: https://osv.dev/vulnerability/CVE-2019-3784

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-3784/
Summaries are generated and may contain mistakes; the official description above is the record.