Upstream information
Description
Yubico pam-u2f before 1.1.1 has a logic issue that, depending on the pam-u2f configuration and the application used, could lead to a local PIN bypass. This issue does not allow user presence (touch) or cryptographic signature verification to be bypassed, so an attacker would still need to physically possess and interact with the YubiKey or another enrolled authenticator. If pam-u2f is configured to require PIN authentication, and the application using pam-u2f allows the user to submit NULL as the PIN, pam-u2f will attempt to perform a FIDO2 authentication without PIN. If this authentication is successful, the PIN requirement is bypassed.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having important severity.
National Vulnerability Database | |
---|---|
Base Score | 4.6 |
Vector | AV:L/AC:L/Au:N/C:P/I:P/A:P |
Access Vector | Local |
Access Complexity | Low |
Authentication | None |
Confidentiality Impact | Partial |
Integrity Impact | Partial |
Availability Impact | Partial |
National Vulnerability Database | SUSE | |
---|---|---|
Base Score | 6.8 | 7.3 |
Vector | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |
Access Vector | Physical | Local |
Access Complexity | Low | Low |
Privileges Required | None | Low |
User Interaction | None | Required |
Scope | Unchanged | Unchanged |
Confidentiality Impact | High | High |
Integrity Impact | High | High |
Availability Impact | High | High |
CVSSv3 Version | 3.1 | 3.1 |
List of released packages
Product(s) | Fixed package version(s) | References |
---|---|---|
SUSE Linux Enterprise Desktop 15 SP4 SUSE Linux Enterprise High Performance Computing 15 SP4 SUSE Linux Enterprise Module for Basesystem 15 SP4 SUSE Linux Enterprise Server 15 SP4 SUSE Linux Enterprise Server for SAP Applications 15 SP4 SUSE Manager Proxy 4.3 SUSE Manager Retail Branch Server 4.3 SUSE Manager Server 4.3 |
| Patchnames: SUSE Linux Enterprise Module for Basesystem 15 SP4 GA pam_u2f-1.2.0-150400.2.4 |
openSUSE Tumbleweed |
| Patchnames: openSUSE Tumbleweed GA pam_u2f-1.1.1-1.3 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.
Product(s) | Source package | State |
---|---|---|
SUSE CaaS Platform 4.0 | pam_u2f | Not affected |
SUSE Enterprise Storage 6 | pam_u2f | Not affected |
SUSE Linux Enterprise Desktop 15 SP2 | pam_u2f | Not affected |
SUSE Linux Enterprise High Performance Computing 12 SP5 | pam_u2f | Not affected |
SUSE Linux Enterprise High Performance Computing 15 LTSS | pam_u2f | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS | pam_u2f | Not affected |
SUSE Linux Enterprise High Performance Computing 15 SP2 | pam_u2f | Not affected |
SUSE Linux Enterprise Module for Basesystem 15 SP2 | pam_u2f | Not affected |
SUSE Linux Enterprise Server 12 SP4 ESPOS | pam_u2f | Not affected |
SUSE Linux Enterprise Server 12 SP4 LTSS | pam_u2f | Not affected |
SUSE Linux Enterprise Server 12 SP5 | pam_u2f | Not affected |
SUSE Linux Enterprise Server 15 ESPOS | pam_u2f | Not affected |
SUSE Linux Enterprise Server 15 LTSS | pam_u2f | Not affected |
SUSE Linux Enterprise Server 15 SP1 LTSS | pam_u2f | Not affected |
SUSE Linux Enterprise Server 15 SP2 | pam_u2f | Not affected |
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 | pam_u2f | Not affected |
SUSE Linux Enterprise Server for SAP Applications 12 SP4 | pam_u2f | Not affected |
SUSE Linux Enterprise Server for SAP Applications 12 SP5 | pam_u2f | Not affected |
SUSE Linux Enterprise Server for SAP Applications 15 | pam_u2f | Not affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP1 | pam_u2f | Not affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP2 | pam_u2f | Not affected |
SUSE Linux Enterprise Storage 7 | pam_u2f | Not affected |
SUSE Manager Proxy 4.0 | pam_u2f | Not affected |
SUSE Manager Proxy 4.1 | pam_u2f | Not affected |
SUSE Manager Retail Branch Server 4.0 | pam_u2f | Not affected |
SUSE Manager Retail Branch Server 4.1 | pam_u2f | Not affected |
SUSE Manager Server 4.0 | pam_u2f | Not affected |
SUSE Manager Server 4.1 | pam_u2f | Not affected |
SUSE OpenStack Cloud 9 | pam_u2f | Not affected |
SUSE OpenStack Cloud Crowbar 9 | pam_u2f | Not affected |