# CVE-2019-7666: Auth bypass in n/a

> An attacker with database access can bypass authentication by using the MD5 hash to log in as admin, compromising the FlexAir system.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 1 Jul 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-2j6j-xh5r-gf2p

## What is CVE-2019-7666?

CVE-2019-7666 is a high-severity authentication bypass vulnerability in n/a, published on 1 Jul 2019. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Prima Systems FlexAir, Versions 2.3.38 and prior. The application allows improper authentication using the MD5 hash value of the password, which may allow an attacker with access to the database to login as admin without decrypting the password.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2019-7666?

It affects 1 product.


Products: Primasystems Flexair.

## How do I fix CVE-2019-7666?

No fix has been published for CVE-2019-7666 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-7666 being exploited?

There is no known exploitation of CVE-2019-7666 in the wild and no public exploit code.

Public exploit code:

- FlexAir Access Control 2.3.35 - Authentication Bypass (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2019-7667](https://insights.sbomify.com/CVE-2019-7667/): Information disclosure in n/a (critical 9.8)
- [CVE-2019-7668](https://insights.sbomify.com/CVE-2019-7668/): Hardcoded credentials in n/a (critical 9.8)
- [CVE-2019-7671](https://insights.sbomify.com/CVE-2019-7671/): Cross-site scripting in n/a (critical 9.0)
- [CVE-2019-7280](https://insights.sbomify.com/CVE-2019-7280/): Auth bypass in n/a (high 8.8)
- [CVE-2019-7281](https://insights.sbomify.com/CVE-2019-7281/): Cross-site request forgery in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-7666 and fix it if it is affected.

What it is: CVE-2019-7666 is a high-severity authentication bypass vulnerability in n/a, published on 1 Jul 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-7666 in the wild and no public exploit code.

Affected product: n/a. 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-2019-7666/ (Markdown: https://insights.sbomify.com/CVE-2019-7666/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-7666
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-7666
- OSV: https://osv.dev/vulnerability/CVE-2019-7666

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-7666/
Summaries are generated and may contain mistakes; the official description above is the record.