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  5. CVE-2023-0465

CVE-2023-0465: Improper Certificate Validation

March 28, 2023 (updated February 4, 2024)

Applications that use a non-default option when verifying certificates may be vulnerable to an attack from a malicious CA to circumvent certain checks. Invalid certificate policies in leaf certificates are silently ignored by OpenSSL and other certificate policy checks are skipped for that certificate. A malicious CA could use this to deliberately assert invalid certificate policies in order to circumvent policy checking on the certificate altogether. Policy processing is disabled by default but can be enabled by passing the -policy' argument to the command line utilities or by calling the X509_VERIFY_PARAM_set1_policies()’ function.

References

  • git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=10325176f3d3e98c6e2b3bf5ab1e3b334de6947a
  • git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1dd43e0709fece299b15208f36cc7c76209ba0bb
  • git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=b013765abfa80036dc779dd0e50602c57bb3bf95
  • git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=facfb1ab745646e97a1920977ae4a9965ea61d5c
  • nvd.nist.gov/vuln/detail/CVE-2023-0465
  • www.openssl.org/news/secadv/20230328.txt

Code Behaviors & Features

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Affected versions

All versions starting from 1.0.2 before 1.0.2zh, all versions starting from 1.1.1 before 1.1.1u, all versions starting from 3.0.0 before 3.0.9, all versions starting from 3.1.0 before 3.1.1

Fixed versions

  • 1.1.1w
  • 3.0.12
  • 3.1.3

Solution

Upgrade to versions 1.1.1w, 3.0.12, 3.1.3 or above.

Impact 5.3 MEDIUM

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

Learn more about CVSS

Weakness

  • CWE-295: Improper Certificate Validation

Source file

conan/openssl/CVE-2023-0465.yml

Spotted a mistake? Edit the file on GitLab.

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