Improper Authentication Affecting opensc package, versions <0:0.23.0-3.el9_3


Severity

Recommended
0.0
medium
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
1.04% (64th percentile)

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  • Snyk IDSNYK-ORACLE9-OPENSC-6131991
  • published20 Dec 2023
  • disclosed6 Nov 2023

Introduced: 6 Nov 2023

CVE-2023-40660  (opens in a new tab)
CWE-287  (opens in a new tab)

How to fix?

Upgrade Oracle:9 opensc to version 0:0.23.0-3.el9_3 or higher.
This issue was patched in ELSA-2023-7879.

NVD Description

Note: Versions mentioned in the description apply only to the upstream opensc package and not the opensc package as distributed by Oracle. See How to fix? for Oracle:9 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1