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One Identity Safeguard for Privileged Sessions 6.10.0 - 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)
The Welcome Wizard and the first login Basic settings
Supported web browsers and operating systems 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 and cleanup Using plugins Forwarding data to third-party systems Starling integration
User management and access control Managing One Identity Safeguard for Privileged Sessions (SPS)
Controlling One Identity Safeguard for Privileged Sessions (SPS): reboot, shutdown Managing 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) RPC API 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) 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

POSIX LDAP backend

In addition to the common parameters, the POSIX backend has the following configurable parameters:

  • username_attribute: Username (user ID) attribute name is the name of the attribute in the user object, which contains the user’s plain username.

  • membership_check: Enable POSIX group membership check enables POSIX primary and supplementary group membership checking. When enabled, it has the following configurable parameter:

    • member_uid_attribute: the optional POSIX group membership attribute name is the name of the attribute in a posixGroup group object, which lists the plain usernames that are members of the group. These groups are usually referred to as supplementary groups of the referred user.

User identification in POSIX

To determine the user entry for a given plain username, SPS performs a search under user_base_dn for objects having the username_attribute equal to the plain username of the user. The objectClass of the user object is not restricted.

The user object returned here is used for group membership checks.

Group membership resolution in POSIX

For all group membership checks, only the LDAP user object returned during user identification phase is used.

The plain group name is always compared to the cn attribute of the group object.

A user is treated as a member of a group given by its plain group name if the plain group name matches the cn attribute of the group object, and any of the following is true:

  • The group is the user’s primary group. That is, the group is a posixGroup, and the user’s gidNumber attribute is equal to the group’s gidNumber attribute.

    This check is performed only when the membership_check option is enabled for POSIX.

    NOTE: It is OK for the user to have no gidNumber attribute, in which case this check will be skipped.

  • The group lists the user’s short username. That is, the group is a posixGroup, and it’s member_uid_attribute contains the short username from the user object.

    This check is performed only when the membership_check option is enabled, and the member_uid_attribute is configured.

    NOTE: For the purpose of this check, the user’s short username is retrieved from the user object’s username_attribute. Currently, this attribute should only contain a single username. A warning will appear in the logs if this is not the case, and the first value of the attribute will be used as returned by the server. This is a known limitation.

  • The group lists the user’s dn in any of the additional group objects configured in user_dn_in_groups.

    For example, if a row is added with objectClass set to groupOfNames and attribute set to member, SPS will treat the user as a member of all groups where the group is a groupOfNames, and the group’s member attribute contains the user’s dn.

  • The user lists the group’s dn. That is, the user’s memberof_user_attribute contains the dn of the group, and the objectClass of the referred group is memberof_group_objectclass.

    This check is performed only when the memberof_check option is enabled for POSIX.

    NOTE: SPS compares the dn stored in the memberof_user_attribute to the dn of the group object itself in a strict stringwise manner. Therefore, the user attribute must contain the group DN exactly as it would be returned by the LDAP server. No case or accent differences are allowed.

Authenticating users to a RADIUS server

One Identity Safeguard for Privileged Sessions (SPS) can authenticate its users to an external RADIUS server. Group memberships of the users must be managed either locally on SPS or in an LDAP database.

 Caution:

The challenge/response authentication method is currently not supported. Other authentication methods (for example password, SecureID) should work.

To authenticate SPS users to a RADIUS server

  1. Navigate to Users & Access Control > Settings.

    Figure 88: Configuring RADIUS authentication

  2. Set the Authentication method field to RADIUS.

    The status information displayed ([NOT CONFIGURED] and [CONFIGURED]) indicates whether or not you have provided the shared secret required to access the RADIUS server.

  3. Enter the IP address or domain name of the RADIUS server into the Address field.

    Use an IPv4 address.

  4. Click Change, and enter the password that SPS can use to access the server into the Shared secret field.

    NOTE: One Identity Safeguard for Privileged Sessions (SPS) accepts passwords that are not longer than 150 characters. Letters A-Z, a-z, numbers 0-9, the space character, as well as the following special characters can be used: !"#$%&'()*+,-./:;<>=?@[]\^-`{}_|

    Click Update.

  5. To use the Password Authentication Protocol, select PAP. To use the Challenge-Handshake Authentication Protocol, select CHAP.

  6. To add more RADIUS servers, click and repeat Steps 2-4.

    Repeat this step to add multiple servers. If a server is unreachable, SPS will try to connect to the next server in the list in failover fashion.

  7. When configuring RADIUS authentication with locally managed user accounts, complete the following steps.

    1. Set Password expiration to 0.

    2. Set Number of passwords to remember to 0.

    3. Set Minimal password strength to disabled.

    4. Set Cracklib check on password to disabled.

  8. Click .

    		 Caution:

    After you commit this configuration, the SPS web interface will be available only after successfully authenticating to the RADIUS server. Note that the default admin account of SPS will be able to login normally, even if the RADIUS server is unaccessible.

Authenticating users with X.509 certificates

One Identity Safeguard for Privileged Sessions (SPS) provides a method to authenticate the users of the web interface with X.509 client certificates. The client certificate is validated against a trust store, and the username is exported from the client certificate for identification. One Identity recommends using 2048-bit RSA keys (or stronger).

To authenticate SPS users on the SPS web interface with X.509 client certificates, complete the following steps.

Prerequisites

Figure 89: Basic Settings > Trust Stores — Creating a custom trust store

To authenticate users with X.509 certificates

  1. Navigate to Users & Access Control > Settings > Authentication settings.

    Figure 90: Users & Access Control > Settings > Authentication settings — Configuring X.509 authentication

  2. Select X.509.

  3. Select the trust store you created as a prerequisite in Trust Store.

    CAUTION: Upgrading to SPS 6.8 changes authenticating the users of the web interface with X.509 client certificates: certificates are validated against a trust store instead of a trusted CA list. During the upgrade, the trusted CA list formerly used for authentication is copied to a trust store that has revocation check disabled by default.

    If you enabled revocation check for your trusted CA list and added the URLs of certificate revocation lists (CRL) before or you would like to enable revocation check, you have to edit the settings of the trust store manually. Navigate to Basic Settings > Trust Stores, select revocation check type Leaf or Full for the trust store and make sure you add a CRL URL for each root and intermediate CA.

    For more information about trust stores and how to configure them, see "Verifying certificates with Certificate Authorities using trust stores" in the Administration Guide.

  4. Select which field of the user certificate contains the username in the Parse username from field. In most cases, it is the commonName or userid field, but SPS supports the emailAddress and userPrincipalName fields as well.

  5. To allow the admin user to be able to log in without using X.509 authorization, select Enable fallback for admin. This will fallback to password authentication.

    CAUTION: One Identity recommends enabling fallback for admin when revocation check is enabled for the trust store that is used for X.509 authentication. Enabling fallback for admin allows the admin user to log in even if a Certificate Revocation List (CRL) is misconfigured, inaccessible or it has expired.

  6. Click .

Managing user rights and usergroups

In One Identity Safeguard for Privileged Sessions (SPS), user rights can be assigned to usergroups. SPS has numerous usergroups defined by default, but custom user groups can be defined as well. Every group has a set of privileges: which pages of the SPS web interface it can access, and whether it can only view (read) or also modify (read & write/perform) those pages or perform certain actions.

NOTE: Every group has either read or read & write/perform privileges to a set of pages.

Figure 91: Users & Access Control > Appliance Access — Managing SPS users

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