Maintaining Authorization Objects (Transaction SU21)
Custom requirements
Two other very important settings are the activation of the security audit log and the table logging. Both parameters must be activated in order to ensure traceability at the user level as well as at the table level. It should therefore be checked whether the detailed settings for the security audit log are set up in accordance with the company's specifications and, in any case, whether all users with comprehensive authorizations, such as SAP_ALL, are fully covered by the logging without exception.
The view of the executable transactions may differ from the transactions for which the user has permissions, because the RSUSR010 report displays only the transactions that are actually executable. Not only does the transaction need to be started by the S_TCODE authorization object, but the following conditions must also be met: For certain transactions, there are additional permission checks that are performed before the transaction starts. These eligibility objects are then additionally entered in the transaction SE93 (Table TSTCA). For example, queries against the P_TCODE, Q_TCODE, or S_TABU_DIS authorization objects. The transaction code must be valid (i.e. entered in the TSTC table) and must not be locked by the system administrator (in the SM01 transaction).
Law-critical authorizations
You will find all the user favourites of a system in the SMEN_BUFFC table; additionally there is the table SMEN_BUFFI, in which the links from the favourite lists are stored. You can simply export this table to Microsoft Excel and then evaluate it. At this point, however, we would like to point out that you may not evaluate the favourites without prior consultation with the users, because the stored favourites are user-related and therefore personal data. The SMEN_BUFFC table contains various fields that determine the structure of the placed favourites. For example, you can create folders in your favourites to sort them. This folder structure can also be found in the SMEN_BUFFC table. However, the entries themselves that you will find in the REPORT field are important for the re-creation of a permission concept. The REPORTTYPE field tells you whether the entry in question is, for example, a transaction or a Web-Dynpro application. In the TEXT field, if required, you will find the description of the favourite entry. In addition, you should also pay attention to the TARGET_SYS field, since favourites can also be entered for other systems, in this case an RFC target system is entered under TARGET_SYS.
When considering the security of SAP transport landscapes, it is not only the production system that is relevant for auditing. The other systems, including the development systems, must also be included in the risk considerations. The SAP_ALL profile is still frequently used there instead of concrete roles. This article identifies the main risk areas.
The possibility of assigning authorizations during the go-live can be additionally secured by using "Shortcut for SAP systems".
Information on the technical requirements can be found in SAP Note 962457.
The configuration is described in SAP Note 837490.