Tag Archives: OpenVPN

Attacks on OpenVPN servers (Synology and others) since Feb. 2024

[German]It seems that products, that using OpenVPN servers, are now under (Brute Force) attacks. A blog reader contacted me by email the other day because he had observed strange behavior. His logs showed access attempts from the same IP addresses … Continue reading

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Vulnerability CVE-2021-3773 in OpenVPN-Clients (Linux, FreeBSD)

[German]A privilege escalation vulnerability CVE-2021-3773 exists in the Linux and FreeBSD OpenVPN clients. The issue occurs in the OpenVPN use of Netfilter for NAT on Linux and FreeBSD 13, OpenVPN, and natd. A detailed technical report can be found on … Continue reading

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