CVE-2024-27903: openvpn File Upload RCE — Fix

Description

OpenVPN plug-ins on Windows with OpenVPN 2.6.9 and earlier could be loaded from any directory, which allows an attacker to load an arbitrary plug-in which can be used to interact with the privileged OpenVPN interactive service.

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CVSS v3.1 Score

9.8

CRITICAL

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

Weakness Type (CWE)

CWE-283 CWE-283

CWE-434 Unrestricted Upload

Affected Products

Vendor	Product	Versions
openvpn	openvpn	< 2.5.10
openvpn	openvpn	2.6.0 — 2.6.10

References

Advisories & Patches

https://community.openvpn.net/openvpn/wiki/CVE-2024-27903 https://openvpn.net/security-advisory/ovpnx-vulnerability-cve-2024-27903-cve-2024-27459-cve-2024-24974/ https://community.openvpn.net/openvpn/wiki/CVE-2024-27903 https://openvpn.net/security-advisory/ovpnx-vulnerability-cve-2024-27903-cve-2024-27459-cve-2024-24974/

Other References

https://www.mail-archive.com/[email protected]/msg07534.html https://www.mail-archive.com/[email protected]/msg07534.html

Frequently Asked Questions

What is CVE-2024-27903? +

OpenVPN plug-ins on Windows with OpenVPN 2.6.9 and earlier could be loaded from any directory, which allows an attacker to load an arbitrary plug-in which can be used to interact with the privileged OpenVPN interactive service. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2024-27903? +

CVE-2024-27903 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2024-27903? +

CVE-2024-27903 affects products from openvpn, specifically: openvpn. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-27903? +

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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