# CVE-2024-39916: NFS server misconfiguration allows file access outside the exported directory

> An NFS misconfiguration in FOG Project allows attackers to read and modify files outside the intended export directory.

- **Severity:** Medium 6.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N`)
- **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:** 12 Jul 2024
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-3xjr-xf9v-hwjh

## What is CVE-2024-39916?

CVE-2024-39916 is a medium-severity vulnerability in fogproject, published on 12 Jul 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

FOG is a free open-source cloning/imaging/rescue suite/inventory management system. There is a security issue with the NFS configuration in /etc/exports generated by the installer that allows an attacker to modify files outside the export in the default installation. The exports have the no_subtree_check option. The no_subtree_check option means that if a client performs a file operation, the server will only check if the requested file is on the correct filesystem, not if it is in the correct directory. This enables modifying files in /images, accessing other files on the same filesystem, and accessing files on other filesystems. This vulnerability is fixed in 1.5.10.30.

Weakness: CWE-1188 (Initialization of a Resource with an Insecure Default), CWE-453 (Insecure Default Variable Initialization)

## Which versions are affected by CVE-2024-39916?

It affects 1 product.


Products: Fogproject Fogproject.

## How do I fix CVE-2024-39916?

No fix has been published for CVE-2024-39916 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-39916 being exploited?

There is no known exploitation of CVE-2024-39916 in the wild and no public exploit code.

## Other vulnerabilities in fogproject

- [CVE-2025-58443](https://insights.sbomify.com/CVE-2025-58443/): FOG's authentication bypass leads to full SQL DB dump (critical 9.9)
- [CVE-2024-39914](https://insights.sbomify.com/CVE-2024-39914/): FOG has a command injection in /fog/management/export.php?filename= (critical 9.8)
- [CVE-2024-42348](https://insights.sbomify.com/CVE-2024-42348/): FOG leaks sensitive information (AD domain, username and password) (critical 9.3)
- [CVE-2024-40645](https://insights.sbomify.com/CVE-2024-40645/): FOG Authenticated File Upload RCE (high 8.8)
- [CVE-2021-32243](https://insights.sbomify.com/CVE-2021-32243/): File upload in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-39916 and fix it if it is affected.

What it is: CVE-2024-39916 is a medium-severity vulnerability in fogproject, published on 12 Jul 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-39916 in the wild and no public exploit code.

Affected product: fogproject. 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-2024-39916/ (Markdown: https://insights.sbomify.com/CVE-2024-39916/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-39916
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-39916
- OSV: https://osv.dev/vulnerability/CVE-2024-39916

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-39916/
Summaries are generated and may contain mistakes; the official description above is the record.