Controlling file access permissions
Even if key users (department users/application support) do not have to develop their own authorization objects and cooperation with SAP Basis is always advantageous, there are often technical questions such as "Which users have authorization to evaluate a specific cost center or internal order?
The SU25 transaction lists additional customisation options in addition to upgrade activities. Under the item Adjustment of the permission checks (optional) are the transactions SU24 for the maintenance of the value of the proposal, the transaction AUTH_SWITCH_OBJECTS for the global elimination of the authorization objects as well as the transaction SE97 for the maintenance of transaction startup permissions checks (see Tip 76, "Maintain transaction start permissions when calling CALL TRANSACTION"). In the Manual Adjustment section of selected roles, you can create roles from manually created profiles, generate SAP_NEW (see Tip 64, "Use SAP_NEW correctly"), or generate SAP_APP as roles. In the General maintenance for suggestion values section, the reports SU2X_CHECK_WDY_HEADER for the registration of header data for external services (see tip 38, "Use the SU22 and SU24 transactions correctly") and SU2X_CHECK_CONSISTENCY for the concession test (available via the in SAP Note 16466666446445) 692 named Support Package) of suggestion values for the selected authorization objects.
The permissions on database objects show you the details of the user's permissions to access the object. In the following example, the MODELING role includes permission to use the _SYS_BI object with the EXECUTE, SELECT, INSERT, UPDATE, and DELETE privileges. In addition, a user assigned this role is not allowed to pass these privileges on to other users (Grantable to Others). Our role as an example also includes Analytical Privileges and Package Privileges, which are not discussed here.
Authorizations
For the ABAP stack, authorization profiles can be created either manually or by using the profile generator. However, the use of the profile generator is strongly recommended, since manual administration usually results in misconfigurations of authorizations. The profile generator guarantees that users only receive the authorizations assigned by their role. Concepts, processes and workflows must therefore be adapted to the use of the profile generator. There is no choice for the Java stack; here the J2EE authorization mechanism must be used. The User Management Engine offers options that go beyond the J2EE standard.
Define critical permission combinations that cannot be assigned in the monitored systems. A whitelist allows you to specify which users (such as emergency users) you want to exclude from the evaluation. Identify vulnerabilities in the configuration of your RFC interfaces, i.e. RFC connections, where users with extensive permissions (e.g., the SAP_ALL profile) are registered. These RFC connections can be used for the so-called RFC-Hopping, where access to an SAP system is made via such an extensively authorised RFC connection.
For the assignment of existing roles, regular authorization workflows require a certain minimum of turnaround time, and not every approver is available at every go-live. With "Shortcut for SAP systems" you have options to assign urgently needed authorizations anyway and to additionally secure your go-live.
You can also use the AIS default roles as a template for custom area menus.
At www.sap-corner.de you will also find a lot of useful information on the subject of SAP authorizations.
The CRMD_UI_ROLE_PREPARE report identifies and lists all external services defined in the customising of the CRM business role.