CVE-2023-0465

Advisory lineage Upstream: 0 Downstream: 24
Modified
Published: 28 Mar 2023, 14:30
Last modified:18 Feb 2025, 20:12

Vulnerability Summary

Overall Risk (default)
low
21/100
CVSS Score
5.3 MEDIUM
v3.1 (cve.org)
EPSS Score
0.54% LOW
1% probability +0.09%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

28 Mar 2023, 14:30
Published
Vulnerability first disclosed
18 Feb 2025, 20:12
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS Trends

Current EPSS score: 0.54%• Percentile: 68%

Techniques & Countermeasures

  • CWE-295•Improper Certificate Validation

    The product does not validate, or incorrectly validates, a certificate.

Affected Systems

  • Unknown•OpenSSL

    ≥ 1.0.2, < 1.0.2zh | ≥ 1.1.1, < 1.1.1u | ≥ 3.0.0, < 3.0.9 | ≥ 3.1.0, < 3.1.1

References (9)