# CVE-2023-37279: Faktory Web Dashboard can lead to denial of service(DOS) via malicious user input

> An attacker can crash the Faktory background job server by sending a malicious URL query parameter, causing a denial of service.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 20 Sep 2023
- **Updated:** 24 Sep 2024
- **Also known as:** GHSA-x4hh-vjm7-g2jv, GO-2023-2067

## What is CVE-2023-37279?

CVE-2023-37279 is a high-severity denial of service vulnerability in contribsys faktory, published on 20 Sep 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Faktory is a language-agnostic persistent background job server. Prior to version 1.8.0, the Faktory web dashboard can suffer from denial of service by a crafted malicious url query param `days`. The vulnerability is related to how the backend reads the `days` URL query parameter in the Faktory web dashboard. The value is used directly without any checks to create a string slice. If a very large value is provided, the backend server ends up using a significant amount of memory and causing it to crash. Version 1.8.0 fixes this issue.

Weakness: CWE-789 (Memory Allocation with Excessive Size Value), CWE-770 (Allocation of Resources Without Limits or Throttling)

## Which versions are affected by CVE-2023-37279?

3 open source packages ship an affected version, including github.com/contribsys/faktory. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `github.com/contribsys/faktory` | Go | All versions | 1.8.0 |
| `github.com/contribsys/faktory` | Go | All versions | 1.8.0 |
| `github.com/contribsys/faktory` | Go | All versions | 1.8.0 |

Products: Contribsys Faktory.

## How do I fix CVE-2023-37279?

Upgrade github.com/contribsys/faktory to 1.8.0 or later.

## Is CVE-2023-37279 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-37279 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-37279 and fix it if it is affected.

What it is: CVE-2023-37279 is a high-severity denial of service vulnerability in contribsys faktory, published on 20 Sep 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-37279 exists.

Affected packages and fixed versions:
- github.com/contribsys/faktory (Go): affected all versions; fixed in 1.8.0
- github.com/contribsys/faktory (Go): affected all versions; fixed in 1.8.0
- github.com/contribsys/faktory (Go): affected all versions; fixed in 1.8.0

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-2023-37279/ (Markdown: https://insights.sbomify.com/CVE-2023-37279/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-37279
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-37279
- OSV: https://osv.dev/vulnerability/CVE-2023-37279

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-37279/
Summaries are generated and may contain mistakes; the official description above is the record.