# CVE-2024-4399: CAS <= 1.0.0 - Unauthenticated SSRF

> Unauthenticated attackers can perform Server-Side Request Forgery attacks via an unvalidated parameter in the CAS plugin.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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:** 23 May 2024
- **Updated:** 1 Aug 2024
- **Also known as:** GHSA-q6fh-vc2v-h383

## What is CVE-2024-4399?

CVE-2024-4399 is a critical server-side request forgery vulnerability in Unknown cas, published on 23 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The  does not validate a parameter before making a request to it, which could allow unauthenticated users to perform SSRF attack

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2024-4399?

It affects 1 product.


Products: Apereo Central Authentication Service.

## How do I fix CVE-2024-4399?

No fix has been published for CVE-2024-4399 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-4399 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-4399 exists.

Public exploit code:

- WordPress CAS Theme <= 1.0.0 - Server-Side Request Forgery (nuclei): http/cves/2024/CVE-2024-4399.yaml

## Other vulnerabilities in Unknown cas

- [CVE-2023-4612](https://insights.sbomify.com/CVE-2023-4612/): MFA bypass in Apereo CAS (critical 9.8)
- [CVE-2019-10754](https://insights.sbomify.com/CVE-2019-10754/): Use of Insufficiently Random Values in Apereo CAS (high 8.1)
- [CVE-2020-27178](https://insights.sbomify.com/CVE-2020-27178/): Improper Authentication in Apereo CAS (high 7.5)
- [CVE-2015-1169](https://insights.sbomify.com/CVE-2015-1169/): Auth bypass in n/a (high 7.5)
- [CVE-2024-11208](https://insights.sbomify.com/CVE-2024-11208/): Apereo CAS login session expiration (medium 6.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-4399 and fix it if it is affected.

What it is: CVE-2024-4399 is a critical server-side request forgery vulnerability in Unknown cas, published on 23 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-4399 exists.

Affected product: Unknown cas. 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-2024-4399/ (Markdown: https://insights.sbomify.com/CVE-2024-4399/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-4399
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-4399
- OSV: https://osv.dev/vulnerability/CVE-2024-4399

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-4399/
Summaries are generated and may contain mistakes; the official description above is the record.