What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-07-12 · updated 2026-06-17
• Weakness: CWE-453

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.

Affected products

• fogproject: through 1.5.10

References

• https://github.com/FOGProject/fogproject/commit/2de209bc57a177a052b4a877f000c591740b2f88
• https://github.com/FOGProject/fogproject/security/advisories/GHSA-3xjr-xf9v-hwjh
• https://github.com/FOGProject/fogproject/commit/2de209bc57a177a052b4a877f000c591740b2f88
• https://github.com/FOGProject/fogproject/security/advisories/GHSA-3xjr-xf9v-hwjh

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