Design of the SAP landscape
ORGANISATION IN CHANGE
What do RFC interfaces and RFC security have to do with the play "Hauptmann von Köpenick" and the science fiction film "Minority Report"? Probably more than you like! RFC security and theatre?! Germany, Berlin, 1906: The 46-year-old cobbler Wilhelm Voigt dreams of returning to a normal life. After various convictions and many prison stays, he lives on the margins of society. It's not just the money he lacks. Above all, the lack of access to his social system makes him. In view of his impasse, he opts for a drastic measure. The excluded shoemaker pulls off and grates off several junk dealers to assemble a military uniform gradually. A few days later, he slips into the same disguise, successfully changes his identity and then swings through Berlin as Captain von Köpenick. He commandeers soldiers, storms the town hall and even detains the mayor. There is no doubt about the commands and their execution, because their true identity is veiled: Because of a simple disguise. A disguise that gives him all the necessary permissions he needs for his scam. At the end of the day, Wilhelm Voigt successfully compromised the Berlin government. RFC Security and Science Fiction?! USA, Washington, DC, 2054: The Washington police have long since stopped investigating murders: It prevents the killings right in advance. For this purpose, so-called "precogs" are used, which use precognition to predict and report murders in visions before they happen. At the same time, the government uses a system of public scanners that can identify all citizens clearly at any time by iris detection. One day, when policeman John Anderton himself appears as the culprit in a vision of the "Precogs," he flees the police building and decides to find out why.
An important area of SAP Security is the analysis of the customer's own SAP programs, which are classically written in the proprietary SAP language ABAP. Here, too, as in all programming languages, security vulnerabilities can be programmed - whether consciously or unconsciously. However, the patterns of security vulnerabilities in ABAP code differ from those in Java stacks or Windows programs. The goal of these conventional programs is usually to either crash the program (buffer overflow) or to artificially execute the program's own code (code injection). Both is not possible in ABAP, since a crash of a process causes nothing else than the creation of an entry in the log database (Dump ST22) and a subsequent termination of the report with return to the menu starting point. So a direct manipulation as in other high level languages or servers is not possible. However, there are other manipulation possibilities.
Implementation and operation
Today, there is a much wider choice, with our AIOps platform Avantra, code cleansing tools such as Panaya, test automation with HP Quality Center and IT service management with ServiceNow being just a few examples. The SAP software partner ecosystem is in good health.
This option is useful if several transactions are to be checked simultaneously for their existing assignment to a particular user. This variant must first identify all roles that have already been assigned to the user. This is done in the transaction SE16N by entering the table AGR_USERS. In addition, the limit of the maximum hit number can be set in this image. The user concerned must now be entered here. Furthermore, the output should be limited to the roles only. After the query is executed, all the roles assigned to the previously entered user are displayed. These are now completely marked and copied. Then in the transaction SE16N a step back is taken and this time the table AGR_1251 is selected. Now all the roles that have been copied previously are inserted here. In addition, the object S_TCODE and the transactions to be searched for are filtered. Warning: When entering transaction codes, be sure to be case-sensitive! At this point, the output can also be limited to the roles and object values (in this case, the transactions). After the query is executed, the transactions entered will now show those that the user can already perform. In addition, the role assigned to the transaction is shown. In conclusion, the SUIM is only partially suitable for identifying certain transactions with user assignment. Although the search using the S_TCODE permission object also allows you to view multiple transactions. However, since the result is missing the assignment of transactions considered to roles, the SUIM transaction can only be usefully used to check a single transaction for its existing assignment to a particular user.
For administrators, a useful product - "Shortcut for SAP Systems" - is available in the SAP basis area.
In order to make a transaction in cryptocurrencies, you do not have to let your bank know about it as you would for "normal" money, but you have to use the Private Key to prove that you own the coins.
They also need the ability to work in a structured manner and to find creative solutions and decisions.