# CVE-2024-33509: Security feature bypass in FortiWeb

> A remote attacker in a Man-in-the-Middle position can decipher or tamper with FortiWeb WAF communication channels due to improper certificate validation.

- **Severity:** Medium 4.4 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:R`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Jul 2024
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-49fh-c382-5964

## What is CVE-2024-33509?

CVE-2024-33509 is a medium-severity vulnerability in Fortinet Fortiweb, published on 9 Jul 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An improper certificate validation vulnerability [CWE-295] in FortiWeb 7.2.0 through 7.2.1, 7.0 all versions, 6.4 all versions and 6.3 all versions may allow a remote and unauthenticated attacker in a Man-in-the-Middle position to decipher and/or tamper with the communication channel between the device and different endpoints used to fetch data for Web Application Firewall (WAF).

Weakness: CWE-295 (Improper Certificate Validation)

## Which versions are affected by CVE-2024-33509?

It affects 1 product.


Products: Fortinet Fortiweb.

## How do I fix CVE-2024-33509?

No fix has been published for CVE-2024-33509 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-33509 being exploited?

There is no known exploitation of CVE-2024-33509 in the wild and no public exploit code.

## Other vulnerabilities in Fortinet Fortiweb

- [CVE-2025-25257](https://insights.sbomify.com/CVE-2025-25257/): Fortinet FortiWeb SQL Injection (critical 9.6, exploited in the wild)
- [CVE-2025-64446](https://insights.sbomify.com/CVE-2025-64446/): Fortinet FortiWeb Path Traversal (critical 9.4, exploited in the wild)
- [CVE-2025-58034](https://insights.sbomify.com/CVE-2025-58034/): Fortinet FortiWeb OS Command Injection (medium 6.7, exploited in the wild)
- [CVE-2020-29015](https://insights.sbomify.com/CVE-2020-29015/): SQL injection in Fortinet FortiWeb (critical 9.8)
- [CVE-2020-29016](https://insights.sbomify.com/CVE-2020-29016/): Memory corruption in Fortinet FortiWeb (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-33509 and fix it if it is affected.

What it is: CVE-2024-33509 is a medium-severity vulnerability in Fortinet Fortiweb, published on 9 Jul 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-2024-33509 in the wild and no public exploit code.

Affected product: Fortinet Fortiweb. 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-2024-33509/ (Markdown: https://insights.sbomify.com/CVE-2024-33509/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-33509
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-33509
- OSV: https://osv.dev/vulnerability/CVE-2024-33509

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-33509/
Summaries are generated and may contain mistakes; the official description above is the record.