CVE-2024-39943: http file server Command Injection

Description

rejetto HFS (aka HTTP File Server) 3 before 0.52.10 on Linux, UNIX, and macOS allows OS command execution by remote authenticated users (if they have Upload permissions). This occurs because a shell is used to execute df (i.e., with execSync instead of spawnSync in child_process in Node.js).

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CVSS v3.1 Score

9.9

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Weakness Type (CWE)

CWE-78 OS Command Injection

CWE-284 CWE-284

Affected Products

Vendor	Product	Versions
rejetto	http_file_server	< 0.52.10

References

Advisories & Patches

https://github.com/rejetto/hfs/commit/305381bd36eee074fb238b64302a252668daad1d https://github.com/rejetto/hfs/compare/v0.52.9...v0.52.10 https://github.com/rejetto/hfs/commit/305381bd36eee074fb238b64302a252668daad1d https://github.com/rejetto/hfs/compare/v0.52.9...v0.52.10

Other References

https://www.rejetto.com/wiki/index.php/HFS:_Working_with_uploads https://www.rejetto.com/wiki/index.php/HFS:_Working_with_uploads

Frequently Asked Questions

What is CVE-2024-39943? +

rejetto HFS (aka HTTP File Server) 3 before 0.52.10 on Linux, UNIX, and macOS allows OS command execution by remote authenticated users (if they have Upload permissions). This occurs because a shell is used to execute df (i.e., with execSync instead of spawnSync in child_process in Node.js). It has a CVSS v3.1 base score of 9.9 (CRITICAL).

How severe is CVE-2024-39943? +

CVE-2024-39943 has a CVSS v3.1 score of 9.9 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2024-39943? +

CVE-2024-39943 affects products from rejetto, specifically: http_file_server. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-39943? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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