CVE-2023-0466
Certificate policy check not enabled
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.
A flaw was found in OpenSSL. The X509_VERIFY_PARAM_add0_policy() function is documented to enable the certificate policy check when doing certificate verification implicitly. However, implementing the function does not enable the check, allowing certificates with invalid or incorrect policies to pass the certificate verification. Suddenly enabling the policy check could break existing deployments, so it was decided to keep the existing behavior of the X509_VERIFY_PARAM_add0_policy() function. 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.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2023-01-24 CVE Reserved
- 2023-03-28 CVE Published
- 2024-08-02 CVE Updated
- 2024-09-07 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-295: Improper Certificate Validation
CAPEC
References (12)
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.openssl.org/news/secadv/20230328.txt | 2024-02-04 | |
| https://access.redhat.com/security/cve/CVE-2023-0466 | 2023-12-07 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2182565 | 2023-12-07 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | >= 1.0.2 < 1.0.2zh Search vendor "Openssl" for product "Openssl" and version " >= 1.0.2 < 1.0.2zh" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | >= 1.1.1 < 1.1.1u Search vendor "Openssl" for product "Openssl" and version " >= 1.1.1 < 1.1.1u" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | >= 3.0.0 < 3.0.9 Search vendor "Openssl" for product "Openssl" and version " >= 3.0.0 < 3.0.9" | - |
Affected
| ||||||
| Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | >= 3.1.0 < 3.1.1 Search vendor "Openssl" for product "Openssl" and version " >= 3.1.0 < 3.1.1" | - |
Affected
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