CVE-2020-24612

An issue was discovered in the selinux-policy (aka Reference Policy) package 3.14 through 2020-08-24 because the .config/Yubico directory is mishandled. Consequently, when SELinux is in enforced mode, pam-u2f is not allowed to read the user's U2F configuration file. If configured with the nouserok option (the default when configured by the authselect tool), and that file cannot be read, the second factor is disabled. An attacker with only the knowledge of the password can then log in, bypassing 2FA.

• CWE-287

• https://bugzilla.redhat.com/show_bug.cgi?id=1860888Issue Tracking, Third Party Advisory
• https://github.com/fedora-selinux/selinux-policy/commit/71e1989028802c7875d3436fd3966c587fa383fbPatch, Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1860888Issue Tracking, Third Party Advisory
• https://github.com/fedora-selinux/selinux-policy/commit/71e1989028802c7875d3436fd3966c587fa383fbPatch, Third Party Advisory

Published

Aug 24, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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