Differences

This shows you the differences between two versions of the page.

--- pfsense:certificates:revoke_certificate [2020/05/11 09:12] – peter
+++ pfsense:certificates:revoke_certificate [2021/02/19 10:08] (current) – [Checking the logs] peter
@@ Line 13: / Line 13: @@
 </WRAP>
+----
+===== Create new Revocation List =====
+Navigate to **System -> Cert Manager**.
+Select **Certificate Revocation**.
+  * Click **Add or Import CRL**.
+{{:pfsense:certificates:pfsense_-_system_-_cert_manager_-_certificate_revocation.png?800|}}
+----
+In **Create new Revocation List**:
+  * Method:  **Create an Internal Certificate Revocation List.**.
+  * Descriptive name:  **ShareWiz OpenVPN - Revocation List**.
+  * Certificate Authority:  **ShareWiz OpenVPN - CA**.   Select here a CA that is already created.
+{{:pfsense:certificates:pfsense_-_system_-_cert_manager_-_certificate_revocation_-_create_new_revocation_list.png?800|}}
+In **Internal Certificate Revocation List**:
+  * Lifetime (Days):  **3650**.
+  * Serial:  **0**.  Default.
+{{:pfsense:certificates:pfsense_-_system_-_cert_manager_-_certificate_revocation_-_internal_certificate_revocation_list.png?800|}}
+  * Click **Save**.
+----
+==== Revocation List is shown as created ====
+{{:pfsense:certificates:pfsense_-_system_-_cert_manager_-_certificate_revocation2.png?800|}}
+----
+===== Add a user certificate to the Revocation List =====
+Navigate to ** System -> Cert.Manager -> Certificate Revocation**.
+  * Click the Pencil Icon to Edit CRL.
+{{:pfsense:certificates:pfsense_-_system_-_cert_manager_-_certificate_revocation2_-_edit.png?800|}}
+shows:
+{{:pfsense:certificates:pfsense_-_system_-_cert_manager_-_certificate_revocation_-_edit_-_revoke_cert.png?800|}}
+----
+This returns to the main Certificate Revocation page with one certificate showing as on the Revocation list.
+{{:pfsense:certificates:pfsense_-_system_-_cert_manager_-_certificate_revocation3.png?800|}}
+----
+===== Check the user certificate is revoked =====
+Navigate to ** System -> Cert.Manager -> Certificate Revocation**.
+  * Click the Pencil Icon to Edit CRL.
+shows:
+{{:pfsense:certificates:pfsense_-_system_-_cert_manager_-_certificate_revocation_-_edit_-_with_currently_revoked_certs.png?800|}}
+<WRAP info>
+**NOTE:**  This shows the User cert is revoked.
+</WRAP>
+----
+Navigate to **System -> Cert Manager -> Certificates**.
+{{:pfsense:certificates:pfsense_-_system_-_cert_manager_-_certificates_-_revoked_user.png?800|}}
+<WRAP info>
+**NOTE:**  This shows the User cert is revoked.
+</WRAP>
+<WRAP alert>
+**ALERT:**  Even though the certificate is showing as Revoked, this will __NOT__ disable the user from accessing the VPN!!!
+Even if the certificate is deleted from the from revocation list, but the certificate is still in the certificate database, the user will still be able to connect!
+The Revocation Lists has to be enabled and configured.  See next steps.
+</WRAP>
+----
+===== Add the Revocation list to the VPN Server =====
+Navigate to **VPN -> OpenVPN -> Servers**.
+  * Click the Pencil Icon to edit.
+{{:pfsense:certificates:pfsense_-_vpn_-_openvpn_-_servers_-_edit.png?800|}}
+----
+In **Cryptographic Settings**:
+  * Peer Certificate Revocation list:  **Select the Revocation list to use**.
+{{:pfsense:certificates:pfsense_-_vpn_-_openvpn_-_servers_-_edit_-_cryptographic_settings_-_peer_certificate_revocation_list.png?800|}}
+  * Click **Save**.
+----
+===== Test =====
+Try to connect using the VPN client.
+This should fails.
+==== Checking the logs ====
+Navigate to **Status -> System Logs -> OpenVPN**.
+<code>
+...
+Feb 19 09:46:24 	openvpn 	2000 	192.168.1.102:48212 VERIFY ERROR: depth=0, error=certificate revoked: C=JE, L=St. Helier, O=ShareWiz, CN=peter
+Feb 19 09:46:24 	openvpn 	2000 	192.168.1.102:48212 OpenSSL: error:14089086:SSL routines:ssl3_get_client_certificate:certificate verify failed
+Feb 19 09:46:24 	openvpn 	2000 	192.168.1.102:48212 TLS_ERROR: BIO read tls_read_plaintext error
+Feb 19 09:46:24 	openvpn 	2000 	192.168.1.102:48212 TLS Error: TLS object -> incoming plaintext read error
+Feb 19 09:46:24 	openvpn 	2000 	192.168.1.102:48212 TLS Error: TLS handshake failed
+Feb 19 09:47:01 	openvpn 	2000 	192.168.1.102:52702 VERIFY ERROR: depth=0, error=certificate revoked: C=JE, L=St. Helier, O=ShareWiz, CN=peter
+Feb 19 09:47:01 	openvpn 	2000 	192.168.1.102:52702 OpenSSL: error:14089086:SSL routines:ssl3_get_client_certificate:certificate verify failed
+Feb 19 09:47:01 	openvpn 	2000 	192.168.1.102:52702 TLS_ERROR: BIO read tls_read_plaintext error
+Feb 19 09:47:01 	openvpn 	2000 	192.168.1.102:52702 TLS Error: TLS object -> incoming plaintext read error
+Feb 19 09:47:01 	openvpn 	2000 	192.168.1.102:52702 TLS Error: TLS handshake failed
+...
+</code>
+<WRAP info>
+**NOTE:** The log shows the certificate verification failed due to certificate revoked
+</WRAP>
+----
+<WRAP alert>
+**ALERT:**  Deleting the user and certificate from the pFSense will __NOT__ disable them from accessing the VPN.
+Deleting certificates will not disable VPN connectivity.
+The Revocation Lists has to be enabled and configured.
+Even if the certificate is deleted from the from revocation list, but the certificate is still in the certificate database, the user will still be able to connect!
+</WRAP>