Conclusion
Authorization concept - user administration process
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.
The case that the user buffer is not up to date is very rare. The auth/new_buffering profile parameter sets the value 4 to immediately update the permissions, i.e. changes to the user root or roles or profiles, and write them to the USRBF2 database table without requiring a new login. This value is set by default. The fact that the buffer is not up-to-date is recognised by the fact that existing permissions that are not in the buffer are marked in the transaction SU56 with the note "In the root data but not in the user buffer".
Sustainably protect your data treasures with the right authorization management
Today we come to the error analysis with authorizations. The best thing that can happen is the error of the type: "I don't have authorization to do this and that!" (CASE1). Worse is the case that someone has too many permissions, i.e. the type: "User xy should not have this permission anymore" (CASE2). How to proceed? First of all we come to case 1 This case, that someone has no authorization for something, supports the system excellently! The code word is SU53! If a transaction encounters an authorization error, then this error is written to a memory area that can be displayed. For this there is once the transaction SU53 or the menu selection "System/Utilities/Anc authorization check". With this function, the system outputs information showing which authorization objects are missing for the user.
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The AL08 transaction displays all logged-in users and their application servers. In the Server Name column, you can see which application server the user is logged on to, and which has the permission issue. Switch to this application server by calling the SM51 transaction and double-clicking the application server you are looking for. On the application server that is now active, run the permission trace as usual and review the evaluation.
During go-live, the assignment of necessary authorizations is particularly time-critical. The "Shortcut for SAP systems" application provides functions for this purpose, so that the go-live does not get bogged down because of missing authorizations.
This allows you to read table entries, store data from the ABAP application's memory, or read data that is already there.
The indirect role assignment uses the evaluation paths PROFLO and PROFLINT for assigning the PFCG roles to the corresponding users.