Rejetto HTTP File Server up to 0.52.9 on Linux/Unix/macOS Upload Node.js child_process os command injection

Summaryinfo

A vulnerability labeled as critical has been found in Rejetto HTTP File Server up to 0.52.9 on Linux/Unix/macOS. The affected element is the function child_process of the file Node.js of the component Upload Handler. Executing a manipulation can lead to Remote Privilege Escalation. The identification of this vulnerability is CVE-2024-39943. The attack may be launched remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Rejetto HTTP File Server up to 0.52.9 on Linux/Unix/macOS and classified as critical. This vulnerability affects the function child_process of the file Node.js of the component Upload Handler. The manipulation with an unknown input leads to a remote privilege escalation vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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).

The advisory is shared for download at rejetto.com. This vulnerability was named CVE-2024-39943 since 07/04/2024. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1202.

Upgrading to version 0.52.10 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 305381bd36eee074fb238b64302a252668daad1d is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• Rejetto

Name

• HTTP File Server

Version

• 0.52.0
• 0.52.1
• 0.52.2
• 0.52.3
• 0.52.4
• 0.52.5
• 0.52.6
• 0.52.7
• 0.52.8
• 0.52.9

License

• open-source

CPE 2.3info

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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