CVE-2026-47272

Katalog CVE

CVSS 7.1 · High EPSS 0,17%

Kerentanan Improper Authentication. Skor CVSS 3.1 7.1 (High) menurut github.com.

Deskripsi (NVD)

pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, the pusb_pad_compare() function in src/pad.c only verified that the user-side pad (~/.pamusb/device.pad) could be read, but did not enforce that the system-side pad (the pad file on the USB device) was also present and readable. If the user-side pad was deleted or unreadable, the function returned a failure that was treated as non-fatal in certain code paths, allowing authentication to succeed without the USB device being verified. A local user can delete their own ~/.pamusb/device.pad to remove the USB device requirement and authenticate without the physical device. This vulnerability is fixed in 0.9.0.

Rincian

Terbit di NVD

27 Mei 2026

Terakhir diubah

17 Juni 2026

Status NVD

Deferred

CVSS 3.1

7.1 (High), sumber github.com
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-287: Improper Authentication
CWE-908: Use of Uninitialized Resource

EPSS (30 hari)

0,17% peluang dieksploitasi; lebih tinggi dari 5,2% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/mcdope/pam_usb/security/advisories/GHSA-vx6f-rrqr-j87c