VYPR
Unrated severityNVD Advisory· Published Mar 28, 2023· Updated Feb 18, 2025

Invalid certificate policies in leaf certificates are silently ignored

CVE-2023-0465

Description

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.

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Affected products

118

Patches

Vulnerability mechanics

References

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