# CVE-2019-3783: Cloud Foundry Stratos Deploys With Public Default Session Store Secret

> Attackers can hijack user sessions by exploiting a publicly known default secret, allowing them to act on behalf of authenticated users.

- **Severity:** High 8.7 (`CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 7 Mar 2019
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-gqg8-8x59-r3xm

## What is CVE-2019-3783?

CVE-2019-3783 is a high-severity vulnerability in Cloud Foundry Stratos, published on 7 Mar 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Cloud Foundry Stratos, versions prior to 2.3.0, deploys with a public default session store secret. A malicious user with default session store secret can brute force another user's current Stratos session, and act on behalf of that user.

Weakness: CWE-1188 (Initialization of a Resource with an Insecure Default), CWE-384 (Session Fixation)

## Which versions are affected by CVE-2019-3783?

It affects 1 product.


Products: Cloudfoundry Stratos.

## How do I fix CVE-2019-3783?

No fix has been published for CVE-2019-3783 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-3783 being exploited?

There is no known exploitation of CVE-2019-3783 in the wild and no public exploit code.

## Other vulnerabilities in Cloud Foundry Stratos

- [CVE-2019-3784](https://insights.sbomify.com/CVE-2019-3784/): Cloud Foundry Stratos contains a Session Collision Vulnerability (high 8.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-3783 and fix it if it is affected.

What it is: CVE-2019-3783 is a high-severity vulnerability in Cloud Foundry Stratos, published on 7 Mar 2019. 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-2019-3783 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-2019-3783/ (Markdown: https://insights.sbomify.com/CVE-2019-3783/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-3783
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-3783
- OSV: https://osv.dev/vulnerability/CVE-2019-3783

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-3783/
Summaries are generated and may contain mistakes; the official description above is the record.