Basic administration
Features of the SAP authorization concept
One way of gaining direct access to downstream systems from the development system and possibly performing unauthorized activities there is to use incorrectly configured interfaces. In principle, interfaces within a transport landscape should be avoided with regard to the criticality of the systems "uphill", i.e. from an "unsafe" to a "safe" system (e.g. E system to Q or P system). However, this cannot always be implemented; for example, such interfaces are needed within the transportation system. Without going too deeply into the subject, however, critical interfaces can be characterized by the following properties. Critical interfaces refer to a critical system and a critical client, contain an interface user with critical authorizations in the target client, contain its deposited password.
Partners delivering their developments also maintain the proposed values for their applications in the transaction SU22. If customers are developing systems that supply other system landscapes than your system landscape and require different SU24 suggestion values per system, the proposed values in transaction SU22 will be maintained. The profile generator uses only the values of the transaction SU24 in your customer environment as a data base. To maintain the suggestion values, you can use both the System Trace data for permissions from the ST01 or STAUTHTRACE transaction and the data from the permission trace in the SU24 transaction (see Tip 39, "Maintain suggestion values using trace evaluations").
Further training in the area of authorization management
Depending on your SAP NetWeaver release status, you must include SAP Note 1731549 or a support package. After that, it is no longer possible to create new users whose names consist only of variants of spaces or non-visible special characters. Changes to existing users are still possible. The customising switch BNAME_RESTRICT, also included in SAP Note 1731549, allows you to control whether you want to allow alternate spaces at certain locations of the user ID.
As part of the SAP Access Control solution, the Business Role Management component serves the central role management. In addition to other useful functions, it also offers the automation of mass maintenance of role withdrawals. To do this, you must first place the organisational matrix in the customising (transaction SPRO), i.e. you enter the values or value ranges in the Organisation Level Mapping details area for the different organisation fields. At this point, however, you do not specify which reference roles should be derived for these organisational values.
The possibility of assigning authorizations during the go-live can be additionally secured by using "Shortcut for SAP systems".
An essential aspect in the risk assessment of a development system is the type of data available there.
You must first enable the FIN_GL_CI_1 Business Function in the Switch Framework (transaction SFW5).