# CVE-2017-2337: ScreenOS: XSS vulnerability in ScreenOS Firewall

> A persistent XSS in Juniper ScreenOS allows lower-privileged users to execute commands with administrator privileges via the WebUI.

- **Severity:** High 8.4 (`CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H`)
- **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:** No
- **Published:** 14 Jul 2017
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-wccx-jhf8-9569

## What is CVE-2017-2337?

CVE-2017-2337 is a high-severity cross-site scripting vulnerability in Juniper Networks ScreenOS, published on 14 Jul 2017. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

A persistent cross site scripting vulnerability in NetScreen WebUI of Juniper Networks Juniper NetScreen Firewall+VPN running ScreenOS allows a user with the 'security' role to inject HTML/JavaScript content into the management session of other users including the administrator. This enables the lower-privileged user to effectively execute commands with the permissions of an administrator. This issue affects Juniper Networks ScreenOS 6.3.0 releases prior to 6.3.0r24 on SSG Series. No other Juniper Networks products or platforms are affected by this issue.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2017-2337?

It affects 1 product.


Products: Juniper Screenos.

## How do I fix CVE-2017-2337?

No fix has been published for CVE-2017-2337 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-2337 being exploited?

There is no known exploitation of CVE-2017-2337 in the wild and no public exploit code.

## Other vulnerabilities in Juniper Networks ScreenOS

- [CVE-2015-7755](https://insights.sbomify.com/CVE-2015-7755/): Juniper ScreenOS Improper Authentication (critical 9.8, exploited in the wild)
- [CVE-2017-2336](https://insights.sbomify.com/CVE-2017-2336/): ScreenOS: XSS vulnerability in ScreenOS Firewall (critical 9.6)
- [CVE-2017-2335](https://insights.sbomify.com/CVE-2017-2335/): ScreenOS: XSS vulnerability in ScreenOS Firewall (high 8.4)
- [CVE-2017-2338](https://insights.sbomify.com/CVE-2017-2338/): ScreenOS: XSS vulnerability in ScreenOS Firewall (high 8.4)
- [CVE-2017-2339](https://insights.sbomify.com/CVE-2017-2339/): ScreenOS: XSS vulnerability in ScreenOS Firewall (high 8.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-2337 and fix it if it is affected.

What it is: CVE-2017-2337 is a high-severity cross-site scripting vulnerability in Juniper Networks ScreenOS, published on 14 Jul 2017. 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-2017-2337 in the wild and no public exploit code.

Affected product: Juniper Networks ScreenOS. 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-2017-2337/ (Markdown: https://insights.sbomify.com/CVE-2017-2337/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-2337
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-2337
- OSV: https://osv.dev/vulnerability/CVE-2017-2337

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-2337/
Summaries are generated and may contain mistakes; the official description above is the record.