Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Fedoraproject | Selinux-Policy | >= 3.14, <= 2020-08-24 |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1860888Issue TrackingThird Party Advisory
- https://github.com/fedora-selinux/selinux-policy/commit/71e1989028802c7875d3436fPatchThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1860888Issue TrackingThird Party Advisory
- https://github.com/fedora-selinux/selinux-policy/commit/71e1989028802c7875d3436fPatchThird Party Advisory
FAQ
What is CVE-2020-24612?
CVE-2020-24612 is a vulnerability with a CVSS score of 6.7 (MEDIUM). 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,...
How severe is CVE-2020-24612?
CVE-2020-24612 has been rated MEDIUM with a CVSS base score of 6.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-24612?
Check the references section above for vendor advisories and patch information. Affected products include: Fedoraproject Selinux-Policy.