# CVE-2022-35866: Hardcoded credentials in Backup and Recovery

> Remote attackers can bypass authentication in Vinchin Backup and Recovery due to a hard-coded MySQL administrator password.

- **Severity:** Critical 9.8 (`CVSS:3.0/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:** 3 Aug 2022
- **Updated:** 20 Nov 2024
- **Also known as:** GHSA-3v9w-qp9v-wq29

## What is CVE-2022-35866?

CVE-2022-35866 is a critical vulnerability in Vinchin Backup and Recovery, published on 3 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

This vulnerability allows remote attackers to bypass authentication on affected installations of Vinchin Backup and Recovery 6.5.0.17561. Authentication is not required to exploit this vulnerability. The specific flaw exists within the configuration of the MySQL server. The server uses a hard-coded password for the administrator user. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-17139.

Weakness: CWE-798 (Use of Hard-coded Credentials)

## Which versions are affected by CVE-2022-35866?

It affects 1 product.


Products: Vinchin Vinchin Backup and Recovery.

## How do I fix CVE-2022-35866?

No fix has been published for CVE-2022-35866 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-35866 being exploited?

There is no known exploitation of CVE-2022-35866 in the wild and no public exploit code.

## Other vulnerabilities in Vinchin Backup and Recovery

- [CVE-2024-22901](https://insights.sbomify.com/CVE-2024-22901/): Hardcoded credentials in n/a (critical 9.8)
- [CVE-2024-22902](https://insights.sbomify.com/CVE-2024-22902/): Hardcoded credentials in n/a (critical 9.8)
- [CVE-2023-45498](https://insights.sbomify.com/CVE-2023-45498/): Command injection in n/a (critical 9.8)
- [CVE-2023-45499](https://insights.sbomify.com/CVE-2023-45499/): Hardcoded credentials in n/a (critical 9.8)
- [CVE-2024-25228](https://insights.sbomify.com/CVE-2024-25228/): Command injection in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-35866 and fix it if it is affected.

What it is: CVE-2022-35866 is a critical vulnerability in Vinchin Backup and Recovery, published on 3 Aug 2022. 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-2022-35866 in the wild and no public exploit code.

Affected product: Vinchin Backup and Recovery. 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-2022-35866/ (Markdown: https://insights.sbomify.com/CVE-2022-35866/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-35866
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-35866
- OSV: https://osv.dev/vulnerability/CVE-2022-35866

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-35866/
Summaries are generated and may contain mistakes; the official description above is the record.