CVE-2018-7544 Cross-site request forgery in n/a

What is CVE-2018-7544?

CVE-2018-7544 is a critical vulnerability in n/a, published on 16 Mar 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A cross-protocol scripting issue was discovered in the management interface in OpenVPN through 2.4.5. When this interface is enabled over TCP without a password, and when no other clients are connected to this interface, attackers can execute arbitrary management commands, obtain sensitive information, or cause a denial of service (SIGTERM) by triggering XMLHttpRequest actions in a web browser. This is demonstrated by a multipart/form-data POST to http://localhost:23000 with a "signal SIGTERM" command in a TEXTAREA element. NOTE: The vendor disputes that this is a vulnerability. They state that this is the result of improper configuration of the OpenVPN instance rather than an intrinsic vulnerability, and now more explicitly warn against such configurations in both the management-interface documentation, and with a runtime warning

Weakness: CWE-134

Which versions are affected by CVE-2018-7544?

It affects 1 product.

Products include Openvpn Openvpn.

How do I fix CVE-2018-7544?

Change a configuration setting.

Is CVE-2018-7544 being exploited?

There is no known exploitation of CVE-2018-7544 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2025-12106 Memory corruption in OpenVPN Critical 9.1
• CVE-2024-5594 Information disclosure in OpenVPN Critical 9.1
• CVE-2006-1629 Code injection in n/a Critical 9.0
• CVE-2024-4877 Privilege escalation in OpenVPN High 8.8
• CVE-2021-3606 Code injection in OpenVPN-GUI High 7.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-9vqg-v7fx-9jvr, UBUNTU-CVE-2018-7544, openSUSE-SU-2024:11692-1.