# CVE-2023-45586: Other in FortiOS

> Authenticated VPN users can spoof IP addresses to send packets as other users in FortiOS and FortiProxy SSL-VPN tunnel mode.

- **Severity:** Medium 4.7 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N/E:P/RL:X/RC:C`)
- **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:** 14 May 2024
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-74qh-m79m-w8r7

## What is CVE-2023-45586?

CVE-2023-45586 is a medium-severity vulnerability in Fortinet Fortios, published on 14 May 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An insufficient verification of data authenticity vulnerability [CWE-345] in Fortinet FortiOS SSL-VPN tunnel mode version 7.4.0 through 7.4.1, version 7.2.0 through 7.2.7 and before 7.0.12 & FortiProxy SSL-VPN tunnel mode version 7.4.0 through 7.4.1, version 7.2.0 through 7.2.7 and before 7.0.13 allows an authenticated VPN user to send (but not receive) packets spoofing the IP of another user via crafted network packets.

Weakness: CWE-345 (Insufficient Verification of Data Authenticity)

## Which versions are affected by CVE-2023-45586?

It affects 2 products.


Products: Fortinet Fortios, Fortinet Fortiproxy.

## How do I fix CVE-2023-45586?

No fix has been published for CVE-2023-45586 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-45586 being exploited?

There is no known exploitation of CVE-2023-45586 in the wild and no public exploit code.

## Other vulnerabilities in Fortinet Fortios

- [CVE-2024-23113](https://insights.sbomify.com/CVE-2024-23113/): Fortinet Multiple Products Format String (critical 9.8, exploited in the wild)
- [CVE-2022-40684](https://insights.sbomify.com/CVE-2022-40684/): Fortinet Multiple Products Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2024-55591](https://insights.sbomify.com/CVE-2024-55591/): Fortinet FortiOS and FortiProxy Authentication Bypass (critical 9.6, exploited in the wild)
- [CVE-2024-21762](https://insights.sbomify.com/CVE-2024-21762/): Fortinet FortiOS Out-of-Bound Write (critical 9.6, exploited in the wild)
- [CVE-2022-42475](https://insights.sbomify.com/CVE-2022-42475/): Fortinet FortiOS Heap-Based Buffer Overflow (critical 9.3, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-45586 and fix it if it is affected.

What it is: CVE-2023-45586 is a medium-severity vulnerability in Fortinet Fortios, published on 14 May 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-45586 in the wild and no public exploit code.

Affected product: Fortinet Fortios. 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-2023-45586/ (Markdown: https://insights.sbomify.com/CVE-2023-45586/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-45586
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-45586
- OSV: https://osv.dev/vulnerability/CVE-2023-45586

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-45586/
Summaries are generated and may contain mistakes; the official description above is the record.