CVE-2023-40660 (GCVE-0-2023-40660)

Vulnerability from cvelistv5 – Published: 2023-11-06 16:58 – Updated: 2025-11-06 22:59
VLAI
Title
Opensc: potential pin bypass when card tracks its own login state
Summary
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.
Severity
6.6 (Medium)
CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-287 - Improper Authentication
Assigner
References
Impacted products
Vendor Product Version
Affected: 0.17.0 , < 0.24.0 (semver)
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:0.20.0-7.el8_9 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:8::baseos
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Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:0.23.0-3.el9_3 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:9::baseos
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Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
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Date Public
2023-09-25 00:00
Credits
Upstream acknowledges Deepanjan Pal (Oracle Corporation) as the original reporter.
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}


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Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.