Immediate authorization check - SU53
Checking at Program Level with AUTHORITY-CHECK
The passwords of the users are stored in the SAP system as hash values. The quality of the hash values and thus their safety, however, depends on the hash algorithms used. The hash algorithms previously used in SAP systems are no longer considered safe; They can be cracked in a short time using simple technical means. You should therefore protect the passwords in your system in various ways. First, you should severely limit access to the tables where the hash values of the passwords are stored. This applies to the USR02 and USH02 tables and in more recent releases the USRPWDHISTORY table. The best way to assign a separate table permission group to these tables is to do so, as described in Tip 55, "Maintain table permission groups". In addition, you should also control the accesses using the S_TABU_NAM authorization object.
We therefore recommend that you schedule a background job on the PFUD transaction, which performs a regular user comparison (see Trick 17, "Schedule PFUD transaction on a regular basis"). By the way, did you know that the auth/tcodes_not_checked profile parameter enables you to disable the transaction startup permissions for the SU53 and SU56 transactions? To do this, enter the value SU53, SU56, or SU53 SU56 for the profile parameter. This means that the end user no longer needs the permissions to run these transaction codes from the S_TCODE authorization object.
Add External Services from SAP CRM to the User Menu
However, the permission trace is a long-term trace that you can turn on using the auth/authorisation_trace dynamic profile parameter. This trace is user- and client-independent. In the USOB_AUTHVALTRC table, the trace supplements the permissions checks that were not captured before the application ran. This function can also be used for customer-specific developments. Now, go to the RZ11 transaction, enter the auth/authorisation_trace parameter name in the selection box, and click View. You will now get to the detailed view of the profile parameter with all properties and the link to a documentation. To turn the trace on, click Change Value and a pop-up window will open. Enter "Y" or "F" for filters here if you want to define a filter (see Tip 38, "Use SU22 and SU24 transactions correctly") and save your input. A warning appears informing you that the parameter value would be reset when the application server is launched.
A user trace is therefore also a trace over a longer period of time. Currency of the trace execution, the authorization check is recorded exactly once for each user.
"Shortcut for SAP systems" is a tool that enables the assignment of authorizations even if the IdM system fails.
In this context in particular, however, it is not always easy to check all the essential points using the SAP® standard on-board tools.
You can also find some useful tips from practice on the subject of SAP authorizations on the page www.sap-corner.de.
The new authorization objects then contain a parameter for the authorization profile.