One Identity Safeguard for Privileged Sessions (SPS) uses a number of certificates for different tasks that can be managed from the Basic Settings > Management > SSL certificates menu.
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Caution:
Starting from 6.10.0, SPS (SPS) has changed to hardened SSL settings. As a result, during TLS session establishment, the following items are not considered secure:
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Private keys and X.509 certificates having RSA or DSA keys shorter than 2048 bits, or ECC keys shorter than 224 bits.
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Certificates (other than Root CA certificates) with signatures that use the SHA-1 or the MD5 hashing algorithm.
With the hardened SSL settings, SPS will not connect to remote systems that are protected with weak certificates.
You cannot upgrade SPS if your configuration contains insecure certificates, keys or certificate chains in any of the following sections:
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SPS web interface
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internal CA certificate
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connection policy TLS settings
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client X.509 credentials for external LDAP, SMTP or Syslog connections
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server X.509 certificates for external SMTP or Splunk servers
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external indexer credentials (only writable over the REST API)
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CA certificates in Trusted CA Lists and Trust Stores
Note that the certificates and keys that are used for signing, timestamping, encryption or decryption are not affected by this change. |
Figure 145: Basic Settings > Management > SSL certificates — Changing the web certificate of SPS
The following certificates can be modified here:
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CA certificate: The certificate of the internal Certificate Authority of SPS.
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Server certificate: The certificate of the SPS web interface, used to encrypt the communication between SPS and the administrators.
NOTE: If this certificate is changed, the browser of SPS users will display a warning stating that the certificate of the site has changed.
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TSA certificate: The certificate of the internal Timestamping Authority that provides the timestamps used when creating encrypted audit-trails.
NOTE: SPS uses other certificates for different purposes that are not managed here, for example, to encrypt data stored on SPS. For details, see Encrypting audit trails.
Use every keypair or certificate only for one purpose. Do not reuse cryptographic keys or certificates (for example, do not use the certificate of the One Identity Safeguard for Privileged Sessions (SPS) webserver to encrypt audit trails, or the same keypair for signing and encrypting data).
For every certificate, the distinguished name (DN) of the X.509 certificate and the fingerprint of the private key is displayed. To display the entire certificate click on the DN. To display the public part of the private key, click on the fingerprint. It is not possible to download the private key itself from the SPS web interface, but the public part of the key can be downloaded in different formats (for example PEM, DER, or OpenSSH). Also, the X.509 certificate can be downloaded in PEM and DER formats.
During the initial configuration, SPS creates a self-signed CA certificate, and uses this CA to issue the certificate of the web interface (see Server certificate) and the internal Timestamping Authority (TSA certificate).
There are two methods to manage certificates of SPS:
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Recommended: Generate certificates using your own PKI solution and upload them to SPS.
Generate a CA certificate and two other certificates signed with this CA using your PKI solution and upload them to SPS. For the Server and TSA certificates, upload the private key as well. One Identity recommends using 2048-bit RSA keys (or stronger), and to use certificates that have the appropriate keyUsage or extendedKeyUsage fields set (for example, extendedKeyUsage=serverAuth for the SPS web server certificate).
For details on uploading certificates and keys created with an external PKI, complete Uploading external certificates to One Identity Safeguard for Privileged Sessions (SPS).
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Caution:
The Server and the TSA certificates must be issued by the same Certificate Authority. |
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Use the certificates generated on SPS. In case you want to generate new certificates and keys for SPS using its self-signed CA certificate, or generate a new self-signed CA certificate, complete Generating certificates for One Identity Safeguard for Privileged Sessions (SPS).
NOTE: Generate certificates using your own PKI solution and upload them to SPS whenever possible. Certificates generated on SPS cannot be revoked, and can become a security risk if they are somehow compromised.
Create a new certificate for the One Identity Safeguard for Privileged Sessions (SPS) webserver or the Timestamping Authority using the internal CA of SPS, or create a new, self-signed CA certificate for the internal Certificate Authority of SPS.
TIP: One Identity recommends using 2048-bit RSA keys (or stronger).
To create a new certificate for the SPS webserver
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Navigate to Basic Settings > Management > SSL certificates.
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Fill the fields of the new certificate:
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Country: Select the country where SPS is located (for example HU - Hungary).
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Locality name: The city where SPS is located (for example Budapest).
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Organization name: The company who owns SPS (for example Example Inc.).
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Organization unit name: The division of the company who owns SPS (for example IT Security Department).
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State or Province name: The state or province where SPS is located.
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Select the certificate you want to generate.
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To create a new certificate for the SPS web interface, select Generate Server.
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To create a new certificate for the Timestamping Authority, select Generate TSA.
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To create a new certificate for the internal Certificate Authority of SPS, select Generate All. Note that in this case new certificates are created automatically for the server and TSA certificates as well.
NOTE: When generating new certificates, the server and TSA certificates are signed using the certificate of the CA. If you have uploaded an external CA certificate along with its private key, it will be used to create the new server and TSA certificates. If you have uploaded an external CA certificate without its private key, use your external PKI solution to generate certificates and upload them to SPS.
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Caution:
Generating a new certificate automatically deletes the earlier certificate. |
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Click 
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Upload a certificate generated by an external PKI system to One Identity Safeguard for Privileged Sessions (SPS).
Prerequisites
The certificate to upload. For the TSA X.509 Certificate and Server X.509 Certificate, the private key of the certificate is needed as well. The certificates must meet the following requirements:
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SPS accepts certificates in PEM format. The DER format is currently not supported.
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SPS accepts private keys in PEM format, using RSA, DSA, and EC private key algorithms. Password-protected private keys are also supported.
NOTE: SPS accepts passwords that are not longer than 150 characters and supports the following characters:
For the internal CA certificate of SPS, uploading the private key is not required.
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For the TSA certificate, the X509v3 Extended Key Usage extension must be set to critical with the value Time Stamping. Also, the Key Usage extension must be non repudiation and digital signature (that is, without key encipherment or other key usage).
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For the Server certificate, the X509v3 Extended Key Usage extension must be set to TLS Web Server Authentication. Also, the Common Name of the certificate must contain the domain name or the IP address of the SPS host. If the web interface is accessible from multiple interfaces or IP addresses, list every IP address using the Subject Alt Name extension.
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For the certificate used to sign audit trails, the X509v3 Extended Key Usage extension must be set to Sign (downloadable) executable code.
TIP: One Identity recommends using 2048-bit RSA keys (or stronger).
To upload a certificate generated by an external PKI system to SPS
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Navigate to Basic Settings > Management > SSL certificates.
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Click 
to upload the new certificate. A pop-up window is displayed.
Figure 146: Basic Settings > Management > SSL certificates — Uploading certificates
Select Browse, select the file containing the certificate, and click Upload.
For the Server X.509 Certificate
For the Server X.509 Certificate, you can also upload a certificate chain. For that, copy the certificates after each other in a single file. Alternatively, you can copy and paste the certificates one by one after each other into the Certificate field and click Set. The certificates do not have to be in order, SPS will order them and validate the chain: if a member of the chain is missing, an error message is displayed.
NOTE: Certificate chains are supported only for the Server X.509 Certificate.
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To upload the private key corresponding to the certificate, click icon. A pop-up window is displayed.
Figure 147: Basic Settings > Management > SSL certificates — Uploading the private key
Select Browse, select the file containing the private key, provide the Password if the key is password-protected, and click Upload. Alternatively, you can also copy-paste the private key into the Key field, provide the Password there, and click Set.
In the case of a certificate chain, the private key has to be the same as the bottom level certificate.
Expected result
The new certificate is uploaded. If you receive the Certificate issuer mismatch error message after importing a certificate, you must import the CA certificate which signed the certificate as well (the private key of the CA certificate is not mandatory).
NOTE: To download previously uploaded certificates, click on the certificate and either download the certificate (or certificate chain) in one single PEM or DER file, or you can download single certificate files separately (if it is a certificate chain).
To generate a TSA certificate with Windows Certificate Authority (CA) that works with One Identity Safeguard for Privileged Sessions (SPS), generate a CSR (certificate signing request) on a computer running OpenSSL and sign it with Windows CA, then import this certificate into SPS for timestamping.
Prerequisites
A valid configuration file for OpenSSL with the following extensions:
[ tsa_cert ]
extendedKeyUsage = critical,timeStamping
TIP: You can copy /etc/xcb/openssl-ca.cnf from SPS to the computer that will be used for signing. Rename the file to openssl-temp.cnf.
The TSA certificate is considered valid, in terms of compatibility with SPS, if the following conditions are met:
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The X509v3 Extended Key Usage extension of the TSA certificate is set to critical with the value Time Stamping.
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The Key Usage extension is non repudiation and digital signature (that is, without key encipherment or other key usage).
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Caution:
In Encryption, do not select Allow key exchange only with key encryption (key encipherment), because it will result in errors. |
The following X509v3 extensions are supported:
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Hard requirement:
X509v3 Extended Key Usage must be critical, and must only contain Time Stamping.
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Optional:
X509v3 Key Usage, if present, must be digitalSignature and/or nonRepudiation.
To generate TSA certificate with Windows Certificate Authority on Windows Server 2016 or later
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Create CSR using the new configuration file: openssl req -set_serial 0 -config openssl-temp.cnf -reqexts tsa_cert -new -newkey rsa:2048 -keyout timestamp.key -out timestamp.csr -nodes
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Complete the required fields according to your environment:
Generating a 2048 bit RSA private key
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writing new private key to 'timestamp.key'
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You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
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Country Name (2 letter code) [AU]:US
State or Province Name (full name) []:New York
Locality Name (eg, city) []:New York
Organization Name (eg, company) [Internet Widgits Pty Ltd]:Examplecompany IT Security
Organizational Unit Name (eg, section) []:Service Delivery
Common Name (eg, YOUR name) []:scb35-1-i1.tohuvabohu.examplecompany
Email Address []:vlad@examplecompany.com
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Create and configure a time stamping web server template in the Certificate Authority, and use that to generate the TSA certificate.
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Start the Certification Authority Microsoft Management Console, and select the CA server.
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Right-click on Certificate Templates, and choose Manage.
Figure 148: Managing certificate templates
The Certificate Templates Console opens.
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Right-click the Web Server template, and choose Duplicate Template.
Figure 149: Duplicating a Template
The Properties of New Template window is displayed.
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Make the following changes to the new template:
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On the General tab, change the Template display name to TSA.
Figure 150: Creating the new template
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On the Request Handling tab, enable the Allow private key to be exported option.
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On the Extensions tab, make the following changes:
Edit Application Policies
Select Application Policies and click Edit below the list of extensions.
Figure 151: Editing Application Policies
Remove Server Authentication
Select Server Authentication and click Remove.
Figure 152: Removing Server Authentication
Add Time Stamping
Click Add, select Time Stamping and click OK.
Figure 153: Adding Time Stamping
Make Time Stamping critical
Select Time Stamping and enable the Make this extension critical option, then click OK.
Figure 154: Making Time Stamping critical
Time Stamping and Critical extension are listed in the Description of Application Policies.
Figure 155: Description of Application Policies
Edit Key Usage
Select Key usage, click Edit. Enable the Signature is proof of origin (nonrepudiation) option.
Select Allow key exchange without key encryption (key agreement).
Click OK.
Figure 156: Editing Key Usage
The following are listed in the Description of Key Usage.
Figure 157: Description of Key Usage
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On the Security tab, select Authenticated Users, and set Enroll to Allow.
Figure 158: Configuring permissions for the template
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Click Apply. Click OK. The new TSA template is now displayed in the list of templates.
Figure 159: The new TSA template is now displayed in the list of templates
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Close this window and return to the Certification Authority main screen, and select the Certificate Templates folder.
Figure 160: Certificate Templates
Right-click under the list, and choose New > Certificate Template to Issue.
Figure 161: Certificate Template to Issue
The Enable Certificate Templates window is displayed.
Figure 162: Enable the new template
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Select the TSA certificate template, and choose OK. Close this window.
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Open the command line, and issue the following command:
certreq -submit -attrib "CertificateTemplate:TSA" <CSR>
Replace <CSR> with the full path of the CSR created earlier (in the second step).
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The Certification Authority List is displayed. Select the CA.
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The Save Certificate window is displayed. Choose an output folder.
The certificate is generated to the specified folder.
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In SPS, navigate to Basic Settings > Management > SSL certificates.
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Click next to TSA X.509 certificate, browse for the previously generated certificate, and click Upload.
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Click next to TSA private key, browse for the previously generated key, and click Upload.
NOTE: If the root CA (the CA X.509 certificate field under Basic Settings > Management > SSL certificates) that is used for other certificates on SPS is different from the CA that was used to sign the TSA certificate, a warning is displayed. In this scenario, ignore this warning.
