| ID |
CVE-2026-48983
|
| Sažetak |
pam_usb provides hardware authentication for Linux using ordinary removable media. In versions prior to 0.9.2, a symlink race condition exists in per-device and per-user pad directory creation. pam_usb uses a check-then-act pattern: it calls lstat() to test for existence and then calls mkdir() separately to create the directory. A local attacker can win the race between these calls by replacing the target path with a symlink to a directory they control. If successful, one-time pad files may be written to an attacker-controlled location, potentially exposing future pad values before use or disrupting authentication. This issue has been fixed in version 0.9.2. |
| Reference |
|
| CVSS |
| Base: | 5.8 |
| Impact: | 4.7 |
| Exploitability: | 1.0 |
|
| Pristup |
| Vektor | Složenost | Autentikacija |
| LOCAL |
HIGH |
LOW |
|
| Impact |
| Povjerljivost | Cjelovitost | Dostupnost |
| HIGH |
LOW |
LOW |
|
| CVSS vektor |
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:L |
| Zadnje važnije ažuriranje |
18-06-2026 - 20:16 |
| Objavljeno |
18-06-2026 - 20:16 |
