CVE-2023-0465

Severity CVSS v4.0:

Pending analysis

Type:

CWE-295 Improper Certificate Validation

Publication date:

28/03/2023

Last modified:

18/02/2025

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&#39; argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()&#39; function.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.30 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): Low
Availability (A): None

Base Score 3.x

5.30

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:openssl:openssl::::::::	1.0.2 (including)	1.0.2zh (excluding)
cpe:2.3:a:openssl:openssl::::::::	1.1.1 (including)	1.1.1u (excluding)
cpe:2.3:a:openssl:openssl::::::::	3.0.0 (including)	3.0.9 (excluding)
cpe:2.3:a:openssl:openssl::::::::	3.1.0 (including)	3.1.1 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2023-0465

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools