Description
pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, pam_usb builds XPath expressions from user-supplied identifiers (PAM username, service name) and device-supplied identifiers (USB device serial, model, vendor) to query /etc/pamusb.conf. These identifiers were not validated for XPath metacharacters, allowing injection of arbitrary XPath predicates. This vulnerability is fixed in 0.9.0.
CVSS 6.5EPSS 0.27299999999999996%Risque 0.67
Voir la source- Publication
- 2026-05-27 20:16:39
- Versions concernées
- <0.9.0
- Type
- Core software
- Vecteur
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N