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One Identity Safeguard for Privileged Sessions 6.14 - 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 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 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

Common to all backends

All backends have configurable parameters relevant for user identification and group membership:

  • bind_dn and bind_password: Bind DN and Bind password are used for user identification and group membership check during authentication to the LDAP database. If you leave it empty, One Identity Safeguard for Privileged Sessions (SPS) will try to bind anonymously.

  • user_base_dn: User Base DN is where SPS searches for users.

  • group_base_dn: Group Base DN is where SPS searches for groups. Only groups under this base are considered for membership.

  • memberof_check: the Enable checking for group DNs in user objects setting allows checking a configurable attribute in the user object. This attribute contains a list of group DNs the user is additionally a member of. This user attribute is usually memberOf. For more information, see the backend-specific sections below.

  • user_dn_in_groups: Check the user DN in these groups is a list of additional group object classes and their respective attributes where SPS will look for member user DNs. For more information, see the backend-specific sections below.

All comparisons and searches are done by SPS in a way that plain user and group names are matched with attribute values by the LDAP server. As a result, user and group names are case insensitive if and only if the matching rule for the attribute in question is case insensitive in the LDAP database.

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, One Identity Safeguard for Privileged Sessions (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.

Active Directory LDAP backend

In addition to the common parameters, the Active Directory (AD) backend has the following additional configurable parameters:

  • membership_check: Enable AD group membership check enables AD specific non-primary group membership checking.

    NOTE:

    The AD user’s primary group is always checked regardless of this setting.

    • nested_groups: Enable nested groups allows AD nested group support. See below for details.

Additionally, AD supports case and accent insensitive matching in many of the user and group name attributes. Since One Identity Safeguard for Privileged Sessions (SPS) relies on the server to perform comparisons, case and accent insensitive user and group name support depends solely on the server configuration.

User identification in AD

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

NOTE:

Although userPrincipalName in AD is a Internet-style name like user@example.com, it matches simple names like user.

Only the user object returned here is used for group membership checks.

Glossary

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