# CVE-2022-35741: Apache CloudStack SAML Single Sign-On XXE

> An attacker can exploit XXE in the SAML plugin to read files or cause DoS if the plugin is enabled.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Jul 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-r3xj-vjpq-7cvq

## What is CVE-2022-35741?

CVE-2022-35741 is a critical vulnerability in Apache Cloudstack, published on 18 Jul 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Apache CloudStack version 4.5.0 and later has a SAML 2.0 authentication Service Provider plugin which is found to be vulnerable to XML external entity (XXE) injection. This plugin is not enabled by default and the attacker would require that this plugin be enabled to exploit the vulnerability. When the SAML 2.0 plugin is enabled in affected versions of Apache CloudStack could potentially allow the exploitation of XXE vulnerabilities. The SAML 2.0 messages constructed during the authentication flow in Apache CloudStack are XML-based and the XML data is parsed by various standard libraries that are now understood to be vulnerable to XXE injection attacks such as arbitrary file reading, possible denial of service, server-side request forgery (SSRF) on the CloudStack management server.

Weakness: CWE-611 (Improper Restriction of XML External Entity Reference)

## Which versions are affected by CVE-2022-35741?

It affects 1 product.


Products: Apache Cloudstack.

## How do I fix CVE-2022-35741?

No fix has been published for CVE-2022-35741 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-35741 being exploited?

There is no known exploitation of CVE-2022-35741 in the wild and no public exploit code.

## Other vulnerabilities in Apache Cloudstack

- [CVE-2012-4501](https://insights.sbomify.com/CVE-2012-4501/): Missing authorization in n/a (critical 10.0)
- [CVE-2024-38346](https://insights.sbomify.com/CVE-2024-38346/): Apache CloudStack: Unauthenticated cluster service port leads to remote execution (critical 9.8)
- [CVE-2024-39864](https://insights.sbomify.com/CVE-2024-39864/): Apache CloudStack: Integration API service uses dynamic port when disabled (critical 9.8)
- [CVE-2024-29006](https://insights.sbomify.com/CVE-2024-29006/): Apache CloudStack: x-forwarded-for HTTP header parsed by default (critical 9.8)
- [CVE-2019-17562](https://insights.sbomify.com/CVE-2019-17562/): Command injection in Apache CloudStack (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-35741 and fix it if it is affected.

What it is: CVE-2022-35741 is a critical vulnerability in Apache Cloudstack, published on 18 Jul 2022. 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-2022-35741 in the wild and no public exploit code.

Affected product: Apache Cloudstack. 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-2022-35741/ (Markdown: https://insights.sbomify.com/CVE-2022-35741/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-35741
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-35741
- OSV: https://osv.dev/vulnerability/CVE-2022-35741

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-35741/
Summaries are generated and may contain mistakes; the official description above is the record.