# CVE-2017-10789: Security feature bypass in n/a

> Man-in-the-middle attackers can downgrade SSL connections to cleartext due to incorrect SSL enforcement in the Perl DBD::mysql module.

- **Severity:** Medium 5.9 (`CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 1 Jul 2017
- **Updated:** 5 Aug 2024
- **Also known as:** DEBIAN-CVE-2017-10789, GHSA-4384-9v4p-2vmf, UBUNTU-CVE-2017-10789

## What is CVE-2017-10789?

CVE-2017-10789 is a medium-severity vulnerability in n/a, published on 1 Jul 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The DBD::mysql module through 4.043 for Perl uses the mysql_ssl=1 setting to mean that SSL is optional (even though this setting's documentation has a "your communication with the server will be encrypted" statement), which allows man-in-the-middle attackers to spoof servers via a cleartext-downgrade attack, a related issue to CVE-2015-3152.

## Which versions are affected by CVE-2017-10789?

It affects 1 product.


Products: Dbd-Mysql Project Dbd-Mysql.

## How do I fix CVE-2017-10789?

Upgrade to a fixed version.

## Is CVE-2017-10789 being exploited?

There is no known exploitation of CVE-2017-10789 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2017-10788](https://insights.sbomify.com/CVE-2017-10788/): Use after free in n/a (critical 9.8)
- [CVE-2014-9906](https://insights.sbomify.com/CVE-2014-9906/): Use after free in n/a (critical 9.8)
- [CVE-2015-8949](https://insights.sbomify.com/CVE-2015-8949/): Use after free in n/a (critical 9.8)
- [CVE-2016-1251](https://insights.sbomify.com/CVE-2016-1251/): Use after free in DBD::mysql before 4.041 (high 8.1)
- [CVE-2016-1246](https://insights.sbomify.com/CVE-2016-1246/): Memory corruption in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-10789 and fix it if it is affected.

What it is: CVE-2017-10789 is a medium-severity vulnerability in n/a, published on 1 Jul 2017. 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-2017-10789 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-2017-10789/ (Markdown: https://insights.sbomify.com/CVE-2017-10789/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-10789
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-10789
- OSV: https://osv.dev/vulnerability/CVE-2017-10789

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-10789/
Summaries are generated and may contain mistakes; the official description above is the record.