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.
References
Link | Resource |
---|---|
https://bugzilla.redhat.com/show_bug.cgi?id=1860888 | Issue Tracking Third Party Advisory |
https://github.com/fedora-selinux/selinux-policy/commit/71e1989028802c7875d3436fd3966c587fa383fb | Patch Third Party Advisory |
Configurations
Information
Published : 2020-08-24 14:15
Updated : 2020-09-01 12:02
NVD link : CVE-2020-24612
Mitre link : CVE-2020-24612
JSON object : View
CWE
CWE-287
Improper Authentication
Products Affected
fedoraproject
- selinux-policy