# CVE-2017-18045: Denial of service in n/a

> Remote attackers can cause a denial of service or gain access in DirectAdmin when email FTP password change is enabled.

- **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:** 21 Jan 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-52fc-6vc5-87gh

## What is CVE-2017-18045?

CVE-2017-18045 is a critical denial of service vulnerability in n/a, published on 21 Jan 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

JBMC DirectAdmin before 1.52, when the email_ftp_password_change setting is nonzero, allows remote attackers to obtain access or cause a denial of service (segfault) via an unspecified request.

## Which versions are affected by CVE-2017-18045?

It affects 1 product.


Products: Directadmin Directadmin.

## How do I fix CVE-2017-18045?

No fix has been published for CVE-2017-18045 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-18045 being exploited?

There is no known exploitation of CVE-2017-18045 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2019-9625](https://insights.sbomify.com/CVE-2019-9625/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2009-1525](https://insights.sbomify.com/CVE-2009-1525/): Command injection in n/a (high 8.5)
- [CVE-2025-56551](https://insights.sbomify.com/CVE-2025-56551/): Cross-site scripting in n/a (high 8.2)
- [CVE-2009-1526](https://insights.sbomify.com/CVE-2009-1526/): Path traversal in n/a (medium 6.9)
- [CVE-2007-1926](https://insights.sbomify.com/CVE-2007-1926/): Cross-site scripting in n/a (medium 6.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-18045 and fix it if it is affected.

What it is: CVE-2017-18045 is a critical denial of service vulnerability in n/a, published on 21 Jan 2018. 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-2017-18045 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-2017-18045/ (Markdown: https://insights.sbomify.com/CVE-2017-18045/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-18045
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-18045
- OSV: https://osv.dev/vulnerability/CVE-2017-18045

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-18045/
Summaries are generated and may contain mistakes; the official description above is the record.