CVE-2023-0465 — Improper Certificate Validation in Openssl
Severity
5.3MEDIUMNVD
OSV7.5OSV7.4
EPSS
0.5%
top 33.11%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMar 28
Latest updateNov 28
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 b…
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NExploitability: 3.9 | Impact: 1.4
Affected Packages23 packages
Patches
🔴Vulnerability Details
6OSV▶
CVE-2023-0465: Applications that use a non-default option when verifying certificates may be vulnerable to an attack from a malicious CA to circumvent certain checks↗2023-03-28
OSV▶
CVE-2023-0465: Applications that use a non-default option when verifying certificates may be
vulnerable to an attack from a malicious CA to circumvent certain checks↗2023-03-28