# CVE-2024-20254: Cross-site request forgery in Cisco TelePresence Video Communication Server (VCS) Expressway

> Unauthenticated remote attackers can perform CSRF attacks to execute arbitrary actions on Cisco Expressway and VCS devices.

- **Severity:** Critical 9.6 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H`)
- **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:** 7 Feb 2024
- **Updated:** 22 Aug 2024
- **Also known as:** GHSA-w65c-vwf8-cxjv

## What is CVE-2024-20254?

CVE-2024-20254 is a critical vulnerability in Cisco TelePresence Video Communication Server (VCS) Expressway, published on 7 Feb 2024. 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

Multiple vulnerabilities in Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an unauthenticated, remote attacker to conduct cross-site request forgery (CSRF) attacks that perform arbitrary actions on an affected device. 

 Note: "Cisco Expressway Series" refers to Cisco Expressway Control (Expressway-C) devices and Cisco Expressway Edge (Expressway-E) devices.

 For more information about these vulnerabilities, see the Details ["#details"] section of this advisory.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2024-20254?

It affects 1 product.


Products: Cisco Expressway.

## How do I fix CVE-2024-20254?

No fix has been published for CVE-2024-20254 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-20254 being exploited?

There is no known exploitation of CVE-2024-20254 in the wild and no public exploit code.

## Other vulnerabilities in Cisco TelePresence Video Communication Server (VCS) Expressway

- [CVE-2024-20252](https://insights.sbomify.com/CVE-2024-20252/): Cross-site request forgery in Cisco TelePresence Video Communication Server (VCS) Expressway (critical 9.6)
- [CVE-2022-20812](https://insights.sbomify.com/CVE-2022-20812/): Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities (critical 9.0)
- [CVE-2022-20813](https://insights.sbomify.com/CVE-2022-20813/): Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities (critical 9.0)
- [CVE-2017-3790](https://insights.sbomify.com/CVE-2017-3790/): Denial of service in Cisco Expressway Series Software and Cisco TelePresence VCS Software All versions prior to version X8.8.2 are vulnerable (high 8.6)
- [CVE-2024-20255](https://insights.sbomify.com/CVE-2024-20255/): Cross-site request forgery in Cisco TelePresence Video Communication Server (VCS) Expressway (high 8.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-20254 and fix it if it is affected.

What it is: CVE-2024-20254 is a critical vulnerability in Cisco TelePresence Video Communication Server (VCS) Expressway, published on 7 Feb 2024. 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-2024-20254 in the wild and no public exploit code.

Affected product: Cisco TelePresence Video Communication Server (VCS) Expressway. 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-2024-20254/ (Markdown: https://insights.sbomify.com/CVE-2024-20254/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-20254
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-20254
- OSV: https://osv.dev/vulnerability/CVE-2024-20254

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-20254/
Summaries are generated and may contain mistakes; the official description above is the record.