CVE-2023-40660

2023-11-0617:15:11

CWE-287

redhat

web.nvd.nist.gov

opensc

pin bypass

cryptographic operations

security risk

unauthorized access

CVSS3

6.6

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

AI Score

6.2

Confidence

High

EPSS

0.001

Percentile

23.6%

JSON

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.

Affected configurations

Nvd

Node

opensc_projectopenscRange≤0.23.0

Node

redhatenterprise_linuxMatch8.0

redhatenterprise_linuxMatch9.0

VendorProductVersionCPE
opensc_projectopensc*cpe:2.3:a:opensc_project:opensc:*:*:*:*:*:*:*:*
redhatenterprise_linux8.0cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
redhatenterprise_linux9.0cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
opensc_project	opensc	*	cpe:2.3:a:opensc_project:opensc::::::::
redhat	enterprise_linux	8.0	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
redhat	enterprise_linux	9.0	cpe:2.3:o:redhat:enterprise_linux:9.0:::::::*

CNA Affected

[
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "opensc",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:0.20.0-7.el8_9",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:8::baseos"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "opensc",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "0:0.23.0-3.el9_3",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:9::baseos"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 7",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "opensc",
    "defaultStatus": "unknown",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:7"
    ]
  }
]