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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
| Attack Vector | NETWORK |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | NONE |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | NONE |
| Integrity Impact | LOW |
| Availability Impact | NONE |
| Source | Type | Description |
|---|---|---|
| [email protected] | Primary |
en
CWE-295
|
| 134c704f-9b21-4f2e-91b3-4a467353bcc0 | Secondary |
en
CWE-295
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| openssl | openssl | * | <built-in method update of dict object at 0x7fd340be6dc0> | Application |
| openssl | openssl | * | <built-in method update of dict object at 0x7fd340be5280> | Application |
| openssl | openssl | * | <built-in method update of dict object at 0x7fd36b155980> | Application |
| openssl | openssl | * | <built-in method update of dict object at 0x7fd36b1560c0> | Application |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* |