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 Details
- CVSS 3.1 Base Score: 6.7
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Huawei Euleros 2_0_sp10 | — | Upgrade selinux-policy-minimumUpgrade selinux-policy-mlsUpgrade selinux-policyUpgrade selinux-policy-targetedUpgrade selinux-policy-sandbox | Aug 2, 2022 | Aug 24, 2020 |
| Huawei Euleros 2_0_sp9 | — | Upgrade selinux-policy-targetedUpgrade selinux-policyUpgrade selinux-policy-mlsUpgrade selinux-policy-minimumUpgrade selinux-policy-sandbox | Jul 11, 2022 | Aug 24, 2020 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Aug 24, 2020 |
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