# CVE-2019-1679: Server-side request forgery in Cisco Expressway Series

> Authenticated attackers can trigger SSRF via the REST API, allowing requests to arbitrary hosts from the server.

- **Severity:** Medium 5.0 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 7 Feb 2019
- **Updated:** 21 Nov 2024
- **Also known as:** GHSA-f4vr-c276-c5cm

## What is CVE-2019-1679?

CVE-2019-1679 is a medium-severity server-side request forgery vulnerability in Cisco Expressway Series, published on 7 Feb 2019. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability in the web interface of Cisco TelePresence Conductor, Cisco Expressway Series, and Cisco TelePresence Video Communication Server (VCS) Software could allow an authenticated, remote attacker to trigger an HTTP request from an affected server to an arbitrary host. This type of attack is commonly referred to as server-side request forgery (SSRF). The vulnerability is due to insufficient access controls for the REST API of Cisco Expressway Series and Cisco TelePresence VCS. An attacker could exploit this vulnerability by submitting a crafted HTTP request to the affected server. Versions prior to XC4.3.4 are affected.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2019-1679?

It affects 2 products.


Products: Cisco Telepresence Conductor, Cisco Telepresence Video Communication Server.

## How do I fix CVE-2019-1679?

No fix has been published for CVE-2019-1679 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-1679 being exploited?

There is no known exploitation of CVE-2019-1679 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-1679 and fix it if it is affected.

What it is: CVE-2019-1679 is a medium-severity server-side request forgery vulnerability in Cisco Expressway Series, published on 7 Feb 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-1679 in the wild and no public exploit code.

Affected product: Cisco Expressway 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-2019-1679/ (Markdown: https://insights.sbomify.com/CVE-2019-1679/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-1679
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-1679
- OSV: https://osv.dev/vulnerability/CVE-2019-1679

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-1679/
Summaries are generated and may contain mistakes; the official description above is the record.