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

Medium 6.4 Published 12 Jul 2024 Updated 2 Aug 2024

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

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

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, CWE-453

Which versions are affected by CVE-2024-39916?

It affects 1 product.

Products include 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.

Sources

Also known as GHSA-3xjr-xf9v-hwjh.