# CVE-2023-5253: Check Point IoT integration: WebSocket returns assets data without authentication in Guardian/CMC before 23.3.0

> Unauthenticated attackers can access asset data via WebSocket in Nozomi Networks Guardian and CMC, exposing sensitive IoT inventory information.

- **Severity:** Medium 6.3 (`CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Jan 2024
- **Updated:** 17 Jun 2025
- **Also known as:** GHSA-frjw-g5j9-99p6

## What is CVE-2023-5253?

CVE-2023-5253 is a medium-severity missing authorization vulnerability in Nozomi Networks CMC, published on 15 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A missing authentication check in the WebSocket channel used for the Check Point IoT integration in Nozomi Networks Guardian and CMC, may allow an unauthenticated attacker to obtain assets data without authentication.

Malicious unauthenticated users with knowledge on the underlying system may be able to extract limited asset information.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2023-5253?

It affects 2 products.


Products: Nozominetworks Cmc, Nozominetworks Guardian.

## How do I fix CVE-2023-5253?

No fix has been published for CVE-2023-5253 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-5253 being exploited?

There is no known exploitation of CVE-2023-5253 in the wild and no public exploit code.

## Other vulnerabilities in Nozomi Networks CMC

- [CVE-2023-29245](https://insights.sbomify.com/CVE-2023-29245/): SQL Injection on IDS parsing of malformed asset fields in Guardian/CMC >= 22.6.0 before 22.6.3 and 23.1.0 (critical 9.2)
- [CVE-2026-31984](https://insights.sbomify.com/CVE-2026-31984/): DoS through oversized audit log entries in Guardian/CMC before 26.2.0 (high 8.7)
- [CVE-2023-2567](https://insights.sbomify.com/CVE-2023-2567/): Authenticated SQL Injection on Query functionality in Guardian/CMC before 22.6.3 and 23.1.0 (high 8.7)
- [CVE-2023-22378](https://insights.sbomify.com/CVE-2023-22378/): Authenticated Blind SQL Injection on sorting in Guardian/CMC before 22.6.2 (high 8.7)
- [CVE-2023-23574](https://insights.sbomify.com/CVE-2023-23574/): Authenticated Blind SQL Injection on alerts count in Guardian/CMC before 22.6.2 (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-5253 and fix it if it is affected.

What it is: CVE-2023-5253 is a medium-severity missing authorization vulnerability in Nozomi Networks CMC, published on 15 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-5253 in the wild and no public exploit code.

Affected product: Nozomi Networks CMC. 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-2023-5253/ (Markdown: https://insights.sbomify.com/CVE-2023-5253/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-5253
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-5253
- OSV: https://osv.dev/vulnerability/CVE-2023-5253

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-5253/
Summaries are generated and may contain mistakes; the official description above is the record.