feat(admin): Users management delegation

admin_manual/configuration_server/admin_delegation_configuration.rst

@@ -5,40 +5,43 @@ Administration privileges (Delegation)
 Introduction
 ~~~~~~~~~~~~
 
-Nextcloud has built-in functionality which permits administrators to delegate authority 
-to others without granting them full administration privileges (and without making 
-them a member of the ``admin`` group). 
+Nextcloud has built-in functionality which permits administrators to delegate authority
+to others without granting them full administration privileges (and without making
+them a member of the ``admin`` group).
 
-This administration privilege delegation functionality is supported by many shipped and 
+This administration privilege delegation functionality is supported by many shipped and
 ecosystem apps that have their own settings areas under *Administration settings*.
 
 .. note:: If you're an app developer and would like administrators to be able to utilize this
-  functionality for your app, you need to enable support for delegation of your settings (see 
+  functionality for your app, you need to enable support for delegation of your settings (see
   the Developer Manual for specifics).
 
-.. tip:: Delegation of user management isn't handled here, but through the use of 
+.. tip:: Delegation of user management is possible, but you can also use
   :doc:`Group Administrators <../configuration_user/user_configuration>`.
 
+.. warning:: Delegation of user management allow the delegated users to add themselves to groups
+  receiving delegation of other settings. This can be used to escalate privileges.
+
 Usage
 ~~~~~
 
-By default only members of the ``admin`` group can access *Administration settings*. You can 
-create additional user groups (or use existing ones) and then grant these groups access to specific 
+By default only members of the ``admin`` group can access *Administration settings*. You can
+create additional user groups (or use existing ones) and then grant these groups access to specific
 settings.
 
-While logged in to an account that is a member of the ``admin`` group, go to 
-*Administration settings* -> *Administration privilege*. You will be presented with the list of 
+While logged in to an account that is a member of the ``admin`` group, go to
+*Administration settings* -> *Administration privilege*. You will be presented with the list of
 settings pages and sections, including for any installed apps, that support delegation.
 
 .. figure:: images/admin-right.png
 
-By clicking on the combo box, you will be able to choose which groups are able to access the 
-selected settings. You can revoke access at any time by removing the group from the selection 
-(or, if you wish only to revoke access for an individual account, by removing that account from 
+By clicking on the combo box, you will be able to choose which groups are able to access the
+selected settings. You can revoke access at any time by removing the group from the selection
+(or, if you wish only to revoke access for an individual account, by removing that account from
 the configured group).
 
 .. tip::
-  Not every settings page or section supports delegation. This is either because delegating 
-  access to that particular settings page would enable privilege escalation (i.e. bypassing 
-  of the limited administration authority) or delegation has not yet been implemented for 
+  Not every settings page or section supports delegation. This is either because delegating
+  access to that particular settings page would enable privilege escalation (i.e. bypassing
+  of the limited administration authority) or delegation has not yet been implemented for
   that specific settings page or app.