CVE-2023-0466 (GCVE-0-2023-0466)

Vulnerability from cvelistv5 – Published: 2023-03-28 14:30 – Updated: 2025-02-19 17:12
VLAI
Title
Certificate policy check not enabled
Summary
The function X509_VERIFY_PARAM_add0_policy() is documented to implicitly enable the certificate policy check when doing certificate verification. However the implementation of the function does not enable the check which allows certificates with invalid or incorrect policies to pass the certificate verification. As suddenly enabling the policy check could break existing deployments it was decided to keep the existing behavior of the X509_VERIFY_PARAM_add0_policy() function. Instead the applications that require OpenSSL to perform certificate policy check need to use X509_VERIFY_PARAM_set1_policies() or explicitly enable the policy check by calling X509_VERIFY_PARAM_set_flags() with the X509_V_FLAG_POLICY_CHECK flag argument. Certificate policy checks are disabled by default in OpenSSL and are not commonly used by applications.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • improper certificate validation
Assigner
References
Impacted products
Vendor Product Version
OpenSSL OpenSSL Affected: 3.1.0 , < 3.1.1 (semver)
Affected: 3.0.0 , < 3.0.9 (semver)
Affected: 1.1.1 , < 1.1.1u (custom)
Affected: 1.0.2 , < 1.0.2zh (custom)
Create a notification for this product.
Date Public
2023-03-21 00:00
Credits
David Benjamin (Google) Tomas Mraz
Show details on NVD website
To clipboard 

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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T23:09:41+00:00",
      "cve": "CVE-2023-0466",
      "id": "CVE-2023-0466",
      "initial_release_date": "2023-03-28T00:00:00+00:00",
      "product_status:fixed": "75",
      "product_status:known_affected": "32",
      "product_status:known_not_affected": "152",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "openssl: Certificate policy check not enabled",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-0466.json",
      "version": "3"
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      "current_release_date": "2026-07-17T13:51:10Z",
      "cve": "CVE-2023-0466",
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      "product_status:known_not_affected": "170",
      "product_status:recommended": "999",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-0466",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-0466.json",
      "version": "81"
    },
    "vulnrichment": {
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[{\"other\": {\"type\": \"https://www.openssl.org/policies/secpolicy.html\", \"content\": {\"text\": \"Low\"}}, \"format\": \"other\"}], \"affected\": [{\"vendor\": \"OpenSSL\", \"product\": \"OpenSSL\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.1.0\", \"lessThan\": \"3.1.1\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"3.0.0\", \"lessThan\": \"3.0.9\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"1.1.1\", \"lessThan\": \"1.1.1u\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"1.0.2\", \"lessThan\": \"1.0.2zh\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}], \"datePublic\": \"2023-03-21T00:00:00.000Z\", \"references\": [{\"url\": \"https://www.openssl.org/news/secadv/20230328.txt\", \"name\": \"OpenSSL Advisory\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fc814a30fc4f0bc54fcea7d9a7462f5457aab061\", 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\"descriptions\": [{\"lang\": \"en\", \"value\": \"The function X509_VERIFY_PARAM_add0_policy() is documented to\\nimplicitly enable the certificate policy check when doing certificate\\nverification. However the implementation of the function does not\\nenable the check which allows certificates with invalid or incorrect\\npolicies to pass the certificate verification.\\n\\nAs suddenly enabling the policy check could break existing deployments it was\\ndecided to keep the existing behavior of the X509_VERIFY_PARAM_add0_policy()\\nfunction.\\n\\nInstead the applications that require OpenSSL to perform certificate\\npolicy check need to use X509_VERIFY_PARAM_set1_policies() or explicitly\\nenable the policy check by calling X509_VERIFY_PARAM_set_flags() with\\nthe X509_V_FLAG_POLICY_CHECK flag argument.\\n\\nCertificate policy checks are disabled by default in OpenSSL and are not\\ncommonly used by applications.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"The function X509_VERIFY_PARAM_add0_policy() is documented to implicitly enable the certificate policy check when doing certificate verification. However the implementation of the function does notenable the check which allows certificates with invalid or incorrect policies to pass the certificate verification.\u003cbr\u003eAs suddenly enabling the policy check could break existing deployments it was decided to keep the existing behavior of the X509_VERIFY_PARAM_add0_policy() function.\u003cbr\u003eInstead the applications that require OpenSSL to perform certificate policy check need to use X509_VERIFY_PARAM_set1_policies() or explicitly enable the policy check by calling X509_VERIFY_PARAM_set_flags() with the X509_V_FLAG_POLICY_CHECK flag argument.\u003cbr\u003eCertificate policy checks are disabled by default in OpenSSL and are not commonly used by applications.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"description\": \"improper certificate validation\"}]}], \"providerMetadata\": {\"orgId\": \"3a12439a-ef3a-4c79-92e6-6081a721f1e5\", \"shortName\": \"openssl\", \"dateUpdated\": \"2024-02-04T09:06:28.377Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-0466\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-02-19T17:12:25.801Z\", \"dateReserved\": \"2023-01-24T13:52:42.631Z\", \"assignerOrgId\": \"3a12439a-ef3a-4c79-92e6-6081a721f1e5\", \"datePublished\": \"2023-03-28T14:30:49.595Z\", \"assignerShortName\": \"openssl\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.