# CVE-2018-1193: Security feature bypass in Cloud Foundry Router

> Remote attackers can bypass secure connection requirements by spoofing the X-Forwarded-Proto header in Cloud Foundry Router requests.

- **Severity:** Medium 5.3 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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 2018
- **Updated:** 17 Sep 2024

## What is CVE-2018-1193?

CVE-2018-1193 is a medium-severity vulnerability in Cloud Foundry Router, published on 23 May 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Cloud Foundry routing-release, versions prior to 0.175.0, lacks sanitization for user-provided X-Forwarded-Proto headers. A remote user can set the X-Forwarded-Proto header in a request to potentially bypass an application requirement to only respond over secure connections.

## Which versions are affected by CVE-2018-1193?

It affects 2 products.


Products: Cloudfoundry Cf-Deployment, Cloudfoundry Routing-Release.

## How do I fix CVE-2018-1193?

No fix has been published for CVE-2018-1193 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-1193 being exploited?

There is no known exploitation of CVE-2018-1193 in the wild and no public exploit code.

## Other vulnerabilities in Cloud Foundry Router

- [CVE-2022-31733](https://insights.sbomify.com/CVE-2022-31733/): Auth bypass in Cloud Foundry Diego and CF Deployment (critical 9.1)
- [CVE-2020-5402](https://insights.sbomify.com/CVE-2020-5402/): UAA fails to check the state parameter when authenticating with external IDPs (high 8.8)
- [CVE-2019-11293](https://insights.sbomify.com/CVE-2019-11293/): UAA logs all query parameters with debug logging level (high 8.8)
- [CVE-2019-11290](https://insights.sbomify.com/CVE-2019-11290/): Cloud Foundry UAA logs query parameters in tomcat access file (high 8.8)
- [CVE-2019-11283](https://insights.sbomify.com/CVE-2019-11283/): Password leak in smbdriver logs (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-1193 and fix it if it is affected.

What it is: CVE-2018-1193 is a medium-severity vulnerability in Cloud Foundry Router, published on 23 May 2018. 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-2018-1193 in the wild and no public exploit code.

Affected product: Cloud Foundry Router. 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-2018-1193/ (Markdown: https://insights.sbomify.com/CVE-2018-1193/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-1193
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-1193
- OSV: https://osv.dev/vulnerability/CVE-2018-1193

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-1193/
Summaries are generated and may contain mistakes; the official description above is the record.