# CVE-2019-1975: Cisco HyperFlex Software Cross-Frame Scripting Vulnerability

> Unauthenticated attackers can perform clickjacking via malicious iframes in the Cisco HyperFlex web interface, requiring users to visit attacker-controlled pages.

- **Severity:** Medium 6.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/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:** No
- **Published:** 18 Sep 2019
- **Updated:** 21 Nov 2024
- **Also known as:** GHSA-hxvj-9m68-2v8w

## What is CVE-2019-1975?

CVE-2019-1975 is a medium-severity cross-site scripting vulnerability in Cisco HyperFlex HX-Series, published on 18 Sep 2019. 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 vulnerability in the web-based interface of Cisco HyperFlex Software could allow an unauthenticated, remote attacker to execute a cross-frame scripting (XFS) attack on an affected device. This vulnerability is due to insufficient HTML iframe protection. An attacker could exploit this vulnerability by directing a user to an attacker-controlled web page that contains a malicious HTML iframe. A successful exploit could allow the attacker to conduct clickjacking or other clientside browser attacks.

Weakness: CWE-1021 (Improper Restriction of Rendered UI Layers or Frames), CWE-693 (Protection Mechanism Failure)

## Which versions are affected by CVE-2019-1975?

It affects 5 products.


Products: Cisco Hyperflex Hx220c Af M5 Firmware, Cisco Hyperflex Hx220c Edge M5 Firmware, Cisco Hyperflex Hx220c M5 Firmware, Cisco Hyperflex Hx240c Af M5 Firmware, Cisco Hyperflex Hx240c M5 Firmware.

## How do I fix CVE-2019-1975?

No fix has been published for CVE-2019-1975 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-1975 being exploited?

There is no known exploitation of CVE-2019-1975 in the wild and no public exploit code.

## Other vulnerabilities in Cisco HyperFlex HX-Series

- [CVE-2019-12621](https://insights.sbomify.com/CVE-2019-12621/): Cisco HyperFlex Static SSL Key Vulnerability (medium 6.8)
- [CVE-2019-12620](https://insights.sbomify.com/CVE-2019-12620/): Cisco HyperFlex Software Counter Value Injection Vulnerability (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-1975 and fix it if it is affected.

What it is: CVE-2019-1975 is a medium-severity cross-site scripting vulnerability in Cisco HyperFlex HX-Series, published on 18 Sep 2019. 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-2019-1975 in the wild and no public exploit code.

Affected product: Cisco HyperFlex HX-Series. 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-2019-1975/ (Markdown: https://insights.sbomify.com/CVE-2019-1975/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-1975
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-1975
- OSV: https://osv.dev/vulnerability/CVE-2019-1975

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-1975/
Summaries are generated and may contain mistakes; the official description above is the record.