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One Identity Safeguard for Privileged Sessions 7.5 - Administration Guide

Preface Introduction The concepts of One Identity Safeguard for Privileged Sessions (SPS)
The philosophy of One Identity Safeguard for Privileged Sessions (SPS) Policies Credential Stores Plugin framework Indexing Supported protocols and client applications Modes of operation Connecting to a server through One Identity Safeguard for Privileged Sessions (SPS) Archive and backup concepts Maximizing the scope of auditing IPv6 in One Identity Safeguard for Privileged Sessions (SPS) SSH host keys Authenticating clients using public-key authentication in SSH The gateway authentication process Four-eyes authorization Network interfaces High Availability support in One Identity Safeguard for Privileged Sessions (SPS) Versions and releases of One Identity Safeguard for Privileged Sessions (SPS) Accessing and configuring One Identity Safeguard for Privileged Sessions (SPS)
Cloud deployment considerations The Welcome Wizard and the first login Basic settings
Supported web browsers The structure of the web interface Network settings Configuring date and time System logging, SNMP and e-mail alerts Configuring system monitoring on SPS Data and configuration backups Archiving Cleaning up audit data Using plugins Forwarding data to third-party systems Starling integration
User management and access control
Login settings Managing One Identity Safeguard for Privileged Sessions (SPS) users locally Setting password policies for local users Managing local user groups Managing One Identity Safeguard for Privileged Sessions (SPS) users from an LDAP database Authenticating users to a RADIUS server Authenticating users with X.509 certificates Authenticating users with SAML2 Managing user rights and usergroups Creating rules for restricting access to search audit data Displaying the privileges of users and user groups Listing and searching configuration changes
Managing One Identity Safeguard for Privileged Sessions (SPS)
Controlling One Identity Safeguard for Privileged Sessions (SPS): reboot, shutdown Managing One Identity Safeguard for Privileged Sessions (SPS) clusters Managing a High Availability One Identity Safeguard for Privileged Sessions (SPS) cluster Upgrading One Identity Safeguard for Privileged Sessions (SPS) Managing the One Identity Safeguard for Privileged Sessions (SPS) license Accessing the One Identity Safeguard for Privileged Sessions (SPS) console Sealed mode Out-of-band management of One Identity Safeguard for Privileged Sessions (SPS) Managing the certificates used on One Identity Safeguard for Privileged Sessions (SPS)
General connection settings HTTP-specific settings ICA-specific settings MSSQL-specific settings RDP-specific settings SSH-specific settings Using Sudo with SPS Telnet-specific settings VMware Horizon View connections VNC-specific settings Indexing audit trails Using the Search interface Advanced authentication and authorization techniques Reports The One Identity Safeguard for Privileged Sessions (SPS) REST API One Identity Safeguard for Privileged Sessions (SPS) scenarios Troubleshooting One Identity Safeguard for Privileged Sessions (SPS)
Network troubleshooting Gathering data about system problems Viewing logs on One Identity Safeguard for Privileged Sessions (SPS) Changing log verbosity level of One Identity Safeguard for Privileged Sessions (SPS) Collecting logs and system information for error reporting Collecting logs and system information of the boot process for error reporting Support hotfixes Status history and statistics Troubleshooting a One Identity Safeguard for Privileged Sessions (SPS) cluster Understanding One Identity Safeguard for Privileged Sessions (SPS) RAID status Restoring One Identity Safeguard for Privileged Sessions (SPS) configuration and data VNC is not working with TLS Configuring the IPMI from the BIOS after losing IPMI password Incomplete TSA response received Using UPN usernames in audited SSH connections
Using SPS with SPP Configuring external devices Using SCP with agent-forwarding Security checklist for configuring One Identity Safeguard for Privileged Sessions (SPS) Jumplists for in-product help Configuring SPS to use an LDAP backend Glossary

Managing the certificates used on One Identity Safeguard for Privileged Sessions (SPS)

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.

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:

  • Private keys and X.509 certificates having RSA or DSA keys shorter than 2048 bits, or ECC keys shorter than 224 bits.

  • 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:

  • SPS web interface

  • internal CA certificate

  • connection policy TLS settings

  • client X.509 credentials for external LDAP, SMTP or Syslog connections

  • server X.509 certificates for external SMTP or Splunk servers

  • external indexer credentials (only writable over the REST API)

  • 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 150: Basic Settings > Management > SSL certificates — Changing the web certificate of SPS

The following certificates can be modified here:

  • CA certificate: The certificate of the internal Certificate Authority of SPS.

  • 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.

  • 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:

  • 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).

    Caution:

    The Server and the TSA certificates must be issued by the same Certificate Authority.

  • 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.

Generating certificates for One Identity Safeguard for Privileged Sessions (SPS)

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

  1. Navigate to Basic Settings > Management > SSL certificates.

  2. Fill the fields of the new certificate:

    1. Country: Select the country where SPS is located (for example HU - Hungary).

    2. Locality name: The city where SPS is located (for example Budapest).

    3. Organization name: The company who owns SPS (for example Example Inc.).

    4. Organization unit name: The division of the company who owns SPS (for example IT Security Department).

    5. State or Province name: The state or province where SPS is located.

  3. Select the certificate you want to generate.

    • To create a new certificate for the SPS web interface, select Generate Server.

    • To create a new certificate for the Timestamping Authority, select Generate TSA.

    • 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.

    Caution:

    Generating a new certificate automatically deletes the earlier certificate.

  4. Click .

Uploading external certificates to One Identity Safeguard for Privileged Sessions (SPS)

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:

  • SPS accepts certificates in PEM format. The DER format is currently not supported.

  • 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:

    • Letters A-Z, a-z

    • Numbers 0-9

    • The space character

    • Special characters: !"#$%&'()*+,-./:;<>=?@[]\^-`{}_|

    For the internal CA certificate of SPS, uploading the private key is not required.

  • 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).

  • 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.

  • 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

  1. Navigate to Basic Settings > Management > SSL certificates.

  2. Click to upload the new certificate. A pop-up window is displayed.

    Figure 151: 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.

  3. To upload the private key corresponding to the certificate, click icon. A pop-up window is displayed.

    Figure 152: 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).

Generating TSA certificate with Windows Certificate Authority on Windows Server 2016 or later

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:

  • The X509v3 Extended Key Usage extension of the TSA certificate is set to critical with the value Time Stamping.

  • The Key Usage extension is non repudiation and digital signature (that is, without key encipherment or other key usage).

    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:

  • Hard requirement:

    X509v3 Extended Key Usage must be critical, and must only contain Time Stamping.

  • 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

  1. 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

  2. Complete the required fields according to your environment:

    Generating a 2048 bit RSA private key
    ........................+++
    ......................................+++
    writing new private key to 'timestamp.key'
    -----
    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.
    -----
    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
  3. Create and configure a time stamping web server template in the Certificate Authority, and use that to generate the TSA certificate.

    1. Start the Certification Authority Microsoft Management Console, and select the CA server.

    2. Right-click on Certificate Templates, and choose Manage.

      Figure 153: Managing certificate templates

      The Certificate Templates Console opens.

    3. Right-click the Web Server template, and choose Duplicate Template.

      Figure 154: Duplicating a Template

      The Properties of New Template window is displayed.

    4. Make the following changes to the new template:

      • On the General tab, change the Template display name to TSA.

        Figure 155: Creating the new template

      • On the Request Handling tab, enable the Allow private key to be exported option.

      • On the Extensions tab, make the following changes:

        Edit Application Policies

        Select Application Policies and click Edit below the list of extensions.

        Figure 156: Editing Application Policies

        Remove Server Authentication

        Select Server Authentication and click Remove.

        Figure 157: Removing Server Authentication

        Add Time Stamping

        Click Add, select Time Stamping and click OK.

        Figure 158: Adding Time Stamping

        Make Time Stamping critical

        Select Time Stamping and enable the Make this extension critical option, then click OK.

        Figure 159: Making Time Stamping critical

        Time Stamping and Critical extension are listed in the Description of Application Policies.

        Figure 160: 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 161: Editing Key Usage

        The following are listed in the Description of Key Usage.

        Figure 162: Description of Key Usage

      • On the Security tab, select Authenticated Users, and set Enroll to Allow.

        Figure 163: Configuring permissions for the template

    5. Click Apply. Click OK. The new TSA template is now displayed in the list of templates.

      Figure 164: The new TSA template is now displayed in the list of templates

    6. Close this window and return to the Certification Authority main screen, and select the Certificate Templates folder.

      Figure 165: Certificate Templates

      Right-click under the list, and choose New > Certificate Template to Issue.

      Figure 166: Certificate Template to Issue

      The Enable Certificate Templates window is displayed.

      Figure 167: Enable the new template

    7. Select the TSA certificate template, and choose OK. Close this window.

    8. 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).

    9. The Certification Authority List is displayed. Select the CA.

    10. The Save Certificate window is displayed. Choose an output folder.

      The certificate is generated to the specified folder.

  4. In SPS, navigate to Basic Settings > Management > SSL certificates.

  5. Click next to TSA X.509 certificate, browse for the previously generated certificate, and click Upload.

  6. 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.

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