# CVE-2018-1002102: Kubernetes API server follows unvalidated redirects from streaming Kubelet endpoints

> An attacker-controlled Kubelet can redirect API server requests to arbitrary hosts, potentially exposing sensitive data or bypassing security controls.

- **Severity:** Low 2.6 (`CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 5 Dec 2019
- **Updated:** 17 Sep 2024
- **Also known as:** DEBIAN-CVE-2018-1002102

## What is CVE-2018-1002102?

CVE-2018-1002102 is a low-severity server-side request forgery vulnerability in Fedoraproject Fedora, published on 5 Dec 2019. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

Improper validation of URL redirection in the Kubernetes API server in versions prior to v1.14.0 allows an attacker-controlled Kubelet to redirect API server requests from streaming endpoints to arbitrary hosts. Impacted API servers will follow the redirect as a GET request with client-certificate credentials for authenticating to the Kubelet.

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

## Which versions are affected by CVE-2018-1002102?

It affects 2 products.


Products: Fedoraproject Fedora, Kubernetes Kubernetes.

## How do I fix CVE-2018-1002102?

Upgrade to a fixed version.

## Is CVE-2018-1002102 being exploited?

There is no known exploitation of CVE-2018-1002102 in the wild and no public exploit code.

## Other vulnerabilities in Fedoraproject Fedora

- [CVE-2024-4577](https://insights.sbomify.com/CVE-2024-4577/): PHP-CGI OS Command Injection (critical 9.8, exploited in the wild)
- [CVE-2021-39226](https://insights.sbomify.com/CVE-2021-39226/): Grafana Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2019-5544](https://insights.sbomify.com/CVE-2019-5544/): VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2024-4947](https://insights.sbomify.com/CVE-2024-4947/): Google Chromium V8 Type Confusion (critical 9.6, exploited in the wild)
- [CVE-2024-4671](https://insights.sbomify.com/CVE-2024-4671/): Google Chromium Visuals Use-After-Free (critical 9.6, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-1002102 and fix it if it is affected.

What it is: CVE-2018-1002102 is a low-severity server-side request forgery vulnerability in Fedoraproject Fedora, published on 5 Dec 2019. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2018-1002102 in the wild and no public exploit code.

Affected product: Fedoraproject Fedora. 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-2018-1002102/ (Markdown: https://insights.sbomify.com/CVE-2018-1002102/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-1002102
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-1002102
- OSV: https://osv.dev/vulnerability/CVE-2018-1002102

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-1002102/
Summaries are generated and may contain mistakes; the official description above is the record.