# CVE-2018-15728: Code injection in n/a

> Authenticated administrators can execute arbitrary Erlang code on the server via the diag/eval endpoint, leading to remote code execution.

- **Severity:** High 8.8 (`CVSS:3.0/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:** 24 Aug 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-jmwc-v96p-wc34

## What is CVE-2018-15728?

CVE-2018-15728 is a high-severity code injection vulnerability in Couchbase Couchbase Server, published on 24 Aug 2018. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Couchbase Server exposed the '/diag/eval' endpoint which by default is available on TCP/8091 and/or TCP/18091. Authenticated users that have 'Full Admin' role assigned could send arbitrary Erlang code to the 'diag/eval' endpoint of the API and the code would subsequently be executed in the underlying operating system with privileges of the user which was used to start Couchbase. Affects Version: 4.0.0, 4.1.2, 4.5.1, 5.0.0, 4.6.5, 5.0.1, 5.1.1, 5.5.0, 5.5.1. Fix Version: 6.0.0, 5.5.2

Weakness: CWE-94 (Improper Control of Generation of Code)

## Which versions are affected by CVE-2018-15728?

It affects 1 product.


Products: Couchbase Couchbase Server.

## How do I fix CVE-2018-15728?

No fix has been published for CVE-2018-15728 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-15728 being exploited?

There is no known exploitation of CVE-2018-15728 in the wild and no public exploit code.

## Other vulnerabilities in Couchbase Couchbase Server

- [CVE-2024-0519](https://insights.sbomify.com/CVE-2024-0519/): Google Chromium V8 Out-of-Bounds Memory Access (high 8.8, exploited in the wild)
- [CVE-2023-3079](https://insights.sbomify.com/CVE-2023-3079/): Google Chromium V8 Type Confusion (high 8.8, exploited in the wild)
- [CVE-2023-2033](https://insights.sbomify.com/CVE-2023-2033/): Google Chromium V8 Type Confusion (high 8.8, exploited in the wild)
- [CVE-2023-49930](https://insights.sbomify.com/CVE-2023-49930/): Missing authorization in n/a (critical 9.8)
- [CVE-2023-49931](https://insights.sbomify.com/CVE-2023-49931/): Missing authorization in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-15728 and fix it if it is affected.

What it is: CVE-2018-15728 is a high-severity code injection vulnerability in Couchbase Couchbase Server, published on 24 Aug 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-15728 in the wild and no public exploit code.

Affected product: Couchbase Couchbase Server. 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-2018-15728/ (Markdown: https://insights.sbomify.com/CVE-2018-15728/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-15728
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-15728
- OSV: https://osv.dev/vulnerability/CVE-2018-15728

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-15728/
Summaries are generated and may contain mistakes; the official description above is the record.