CVE-2023-0465
Invalid certificate policies in leaf certificates are silently ignored
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.
A flaw was found in OpenSSL. Applications that use a non-default option when verifying certificates may be vulnerable to an attack from a malicious CA to circumvent certain checks. OpenSSL and other certificate policy checks silently ignore invalid certificate policies in leaf certificates that are skipped for that certificate. A malicious CA could use this to deliberately assert invalid certificate policies 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.
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 (11)
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.openssl.org/news/secadv/20230328.txt | 2024-02-04 | |
| https://access.redhat.com/security/cve/CVE-2023-0465 | 2023-12-07 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2182561 | 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
| ||||||