iked in OpenIKED, as used in OpenBSD through 6.7, allows authentication bypass because ca.c has the wrong logic for checking whether a public key matches.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16088
Reference (s):
- https://ftp.openbsd.org/pub/OpenBSD/patches/6.7/common/014_iked.patch.sig
- https://github.com/openbsd/src/commit/7afb2d41c6d373cf965285840b85c45011357115
- https://github.com/xcllnt/openiked/commits/master
- https://www.openiked.org/security.html