Description
fprintd through 1.94.3 lacks a security attention mechanism, and thus unexpected actions might be authorized by "auth sufficient pam_fprintd.so" for Sudo. NOTE: the supplier disputes this because they believe issue resolution would involve modifying the PAM configuration to restrict pam_fprintd.so to front-ends that implement a proper attention mechanism, not modifying pam_fprintd.so or fprintd.
References
- https://www.openwall.com/lists/oss-security/2024/05/30/3
- https://lists.freedesktop.org/archives/fprint/2024-May/001231.html
- https://gitlab.freedesktop.org/libfprint/fprintd/-/releases
- https://www.openwall.com/lists/oss-security/2024/06/13/2
- [oss-security] 20240613 Re: Security vulnerability in fprintd mailing-list
- [oss-security] 20240614 Re: Security vulnerability in fprintd mailing-list
- [oss-security] 20240614 Re: Security vulnerability in fprintd mailing-list
- [oss-security] 20240614 Re: Security vulnerability in fprintd mailing-list