A flaw was found in OpenSC packages that allow a potential PIN bypass. When a token/card is authenticated by one process, it can perform cryptographic operations in other processes when an empty zero-length pin is passed. This issue poses a security risk, particularly for OS logon/screen unlock and for small, permanently connected tokens to computers. Additionally, the token can internally track login status. This flaw allows an attacker to gain unauthorized access, carry out malicious actions, or compromise the system without the user's awareness.
Published 2023-11-06 17:15:12
Updated 2024-12-04 08:15:04
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: Bypass

Products affected by CVE-2023-40660

Exploit prediction scoring system (EPSS) score for CVE-2023-40660

0.08%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 37 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-40660

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.6
MEDIUM CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
0.7
5.9
NIST
6.6
MEDIUM CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
0.7
5.9
Red Hat, Inc.

CWE ids for CVE-2023-40660

References for CVE-2023-40660

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