# CVE-2020-8790: Auth bypass in n/a

> Weak password requirements and lack of rate limiting in the OKLOK app allow remote attackers to brute force credentials and gain unauthorized access to the Bluetooth padlock.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 4 May 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-x7gg-cwpw-28p9

## What is CVE-2020-8790?

CVE-2020-8790 is a critical authentication bypass vulnerability in n/a, published on 4 May 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The OKLOK (3.1.1) mobile companion app for Fingerprint Bluetooth Padlock FB50 (2.3) has weak password requirements combined with improper restriction of excessive authentication attempts, which could allow a remote attacker to discover user credentials and obtain access via a brute force attack.

Weakness: CWE-521 (Weak Password Requirements), CWE-307 (Improper Restriction of Excessive Authentication Attempts)

## Which versions are affected by CVE-2020-8790?

It affects 1 product.


Products: Oklok Project Oklok.

## How do I fix CVE-2020-8790?

No fix has been published for CVE-2020-8790 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-8790 being exploited?

There is no known exploitation of CVE-2020-8790 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2020-10876](https://insights.sbomify.com/CVE-2020-10876/): Auth bypass in n/a (high 7.5)
- [CVE-2020-8791](https://insights.sbomify.com/CVE-2020-8791/): Missing authorization in n/a (medium 6.5)
- [CVE-2020-8792](https://insights.sbomify.com/CVE-2020-8792/): Information disclosure in n/a (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-8790 and fix it if it is affected.

What it is: CVE-2020-8790 is a critical authentication bypass vulnerability in n/a, published on 4 May 2020. 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-2020-8790 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-2020-8790/ (Markdown: https://insights.sbomify.com/CVE-2020-8790/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-8790
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-8790
- OSV: https://osv.dev/vulnerability/CVE-2020-8790

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-8790/
Summaries are generated and may contain mistakes; the official description above is the record.