# CVE-2019-3788: UAA redirect-uri allows wildcard in the subdomain

> Attackers can exploit wildcard redirect URIs in Cloud Foundry UAA to phish victims and steal access codes, requiring specific client configuration.

- **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:** 25 Apr 2019
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-qf8p-gpw6-r52g

## What is CVE-2019-3788?

CVE-2019-3788 is a high-severity vulnerability in Cloud Foundry Pivotal Application Service, published on 25 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Cloud Foundry UAA Release, versions prior to 71.0, allows clients to be configured with an insecure redirect uri. Given a UAA client was configured with a wildcard in the redirect uri's subdomain, a remote malicious unauthenticated user can craft a phishing link to get a UAA access code from the victim.

Weakness: CWE-601 (URL Redirection to Untrusted Site)

## Which versions are affected by CVE-2019-3788?

It affects 1 product.


Products: Cloudfoundry Uaa Release.

## How do I fix CVE-2019-3788?

No fix has been published for CVE-2019-3788 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-3788 being exploited?

There is no known exploitation of CVE-2019-3788 in the wild and no public exploit code.

## Other vulnerabilities in Cloud Foundry Pivotal Application Service

- [CVE-2019-11279](https://insights.sbomify.com/CVE-2019-11279/): Privilege Escalation via Scope Manipulation in UAA (high 8.7)
- [CVE-2019-3775](https://insights.sbomify.com/CVE-2019-3775/): UAA allows users to modify their own email address (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-3788 and fix it if it is affected.

What it is: CVE-2019-3788 is a high-severity vulnerability in Cloud Foundry Pivotal Application Service, published on 25 Apr 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-2019-3788 in the wild and no public exploit code.

Affected product: Cloud Foundry Pivotal Application Service. 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-2019-3788/ (Markdown: https://insights.sbomify.com/CVE-2019-3788/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-3788
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-3788
- OSV: https://osv.dev/vulnerability/CVE-2019-3788

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-3788/
Summaries are generated and may contain mistakes; the official description above is the record.