# CVE-2019-1724: Cisco Small Business RV320 and RV325 Routers Session Hijacking Vulnerability

> Unauthenticated remote attackers can hijack active user sessions on Cisco RV320/RV325 routers to gain administrative control.

- **Severity:** High 8.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/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:** 3 May 2019
- **Updated:** 20 Nov 2024
- **Also known as:** GHSA-mcgx-x3rr-p246

## What is CVE-2019-1724?

CVE-2019-1724 is a high-severity authentication bypass vulnerability in Cisco Small Business RV Series Router Firmware, published on 3 May 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 session management functionality of the web-based interface for Cisco Small Business RV320 and RV325 Dual Gigabit WAN VPN Routers could allow an unauthenticated, remote attacker to hijack a valid user session on an affected system. An attacker could use this impersonated session to create a new user account or otherwise control the device with the privileges of the hijacked session. The vulnerability is due to a lack of proper session management controls. An attacker could exploit this vulnerability by sending a crafted HTTP request to a targeted device. A successful exploit could allow the attacker to take control of an existing user session on the device. Exploitation of the vulnerability requires that an authorized user session is active and that the attacker can craft an HTTP request to impersonate that session.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2019-1724?

It affects 2 products.


Products: Cisco Rv320 Dual Gigabit Wan Vpn Router Software, Cisco Rv325 Dual Wan Gigabit Vpn Router Firmware.

## How do I fix CVE-2019-1724?

No fix has been published for CVE-2019-1724 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-1724 being exploited?

There is no known exploitation of CVE-2019-1724 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-1724 and fix it if it is affected.

What it is: CVE-2019-1724 is a high-severity authentication bypass vulnerability in Cisco Small Business RV Series Router Firmware, published on 3 May 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-2019-1724 in the wild and no public exploit code.

Affected product: Cisco Small Business RV Series Router Firmware. 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-2019-1724/ (Markdown: https://insights.sbomify.com/CVE-2019-1724/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-1724
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-1724
- OSV: https://osv.dev/vulnerability/CVE-2019-1724

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-1724/
Summaries are generated and may contain mistakes; the official description above is the record.