# CVE-2023-24477: Session Fixation in Guardian/CMC before 22.6.2

> An authenticated local attacker can hijack a user's session due to incomplete logout invalidation in Nozomi Networks Guardian/CMC.

- **Severity:** Medium 5.4 (`CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 9 Aug 2023
- **Updated:** 20 Sep 2024
- **Also known as:** GHSA-45cq-w2jp-hqp4

## What is CVE-2023-24477?

CVE-2023-24477 is a medium-severity authentication bypass vulnerability in Nozomi Networks CMC, published on 9 Aug 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

In certain conditions, depending on timing and the usage of the Chrome web browser, Guardian/CMC versions before 22.6.2 do not always completely invalidate the user session upon logout. Thus an authenticated local attacker may gain acces to the original user's session.

Weakness: CWE-384 (Session Fixation)

## Which versions are affected by CVE-2023-24477?

It affects 2 products.


Products: Nozominetworks Cmc, Nozominetworks Guardian.

## How do I fix CVE-2023-24477?

No fix has been published for CVE-2023-24477 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-24477 being exploited?

There is no known exploitation of CVE-2023-24477 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-2023-24477 and fix it if it is affected.

What it is: CVE-2023-24477 is a medium-severity authentication bypass vulnerability in Nozomi Networks CMC, published on 9 Aug 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-24477 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-2023-24477/ (Markdown: https://insights.sbomify.com/CVE-2023-24477/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-24477
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-24477
- OSV: https://osv.dev/vulnerability/CVE-2023-24477

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-24477/
Summaries are generated and may contain mistakes; the official description above is the record.