# CVE-2020-1741: Misconfiguration in openshift-ansible

> An attacker can perform phishing attacks via man-in-the-middle due to overly permissive CORS settings in OpenShift installation.

- **Severity:** Medium 5.9 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 24 Apr 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-wqfw-39gh-42cj

## What is CVE-2020-1741?

CVE-2020-1741 is a medium-severity vulnerability in Redhat Openshift Container Platform, published on 24 Apr 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A flaw was found in openshift-ansible. OpenShift Container Platform (OCP) 3.11 is too permissive in the way it specified CORS allowed origins during installation. An attacker, able to man-in-the-middle the connection between the user's browser and the openshift console, could use this flaw to perform a phishing attack. The main threat from this vulnerability is data confidentiality.

Weakness: CWE-697 (Incorrect Comparison), CWE-185 (Incorrect Regular Expression)

## Which versions are affected by CVE-2020-1741?

It affects 1 product.


Products: Redhat Openshift Container Platform.

## How do I fix CVE-2020-1741?

Apply the vendor's patch.

## Is CVE-2020-1741 being exploited?

There is no known exploitation of CVE-2020-1741 in the wild and no public exploit code.

## Other vulnerabilities in Redhat Openshift Container Platform

- [CVE-2020-27836](https://insights.sbomify.com/CVE-2020-27836/): Missing authorization in cluster-ingress-operator (critical 9.8)
- [CVE-2018-1085](https://insights.sbomify.com/CVE-2018-1085/): Misconfiguration in openshift-ansible (critical 9.0)
- [CVE-2026-54099](https://insights.sbomify.com/CVE-2026-54099/): Privilege escalation in Red Hat OpenShift Container Platform 4 (high 8.8)
- [CVE-2026-1784](https://insights.sbomify.com/CVE-2026-1784/): Ose-cluster-ingress-operator: remote code execution through haproxy configuration injection (high 8.8)
- [CVE-2021-20182](https://insights.sbomify.com/CVE-2021-20182/): Privilege escalation in openshift (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-1741 and fix it if it is affected.

What it is: CVE-2020-1741 is a medium-severity vulnerability in Redhat Openshift Container Platform, published on 24 Apr 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2020-1741 in the wild and no public exploit code.

Affected product: Redhat Openshift Container Platform. 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-2020-1741/ (Markdown: https://insights.sbomify.com/CVE-2020-1741/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-1741
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-1741
- OSV: https://osv.dev/vulnerability/CVE-2020-1741

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-1741/
Summaries are generated and may contain mistakes; the official description above is the record.