Structured work
SAP System Copies
In order to reduce the complexity of the SAP basis operation and to accelerate and simplify the tasks of the SAPBasis and to create free capacities, standardisation and automation of the existing activities is required. Details can be found in chapters 7.7 and 9.5 of the Master's thesis.
A role concept according to best practice protects you from potential attacks within your SAP landscape. However, to protect your system from unauthorized access via the network, the SAP Gateway must be configured correctly. It enables the use of external programs via interfaces or the call of ABAP programs and serves as a technical component of the application server, which manages the communication of all RFC-based functions.
CONSIDER WITH EXTERNAL SERVICES PROVIDERS
User authentication is usually performed by entering a user name and password. This information is called user credentials and should only be known to the user, so that no third party can gain access to the system under a false identity. This post explains how a user's password protection can be circumvented and how to prevent it. SAP system legacy data The login data of a user, including password, are saved in the USR02 database table. However, the password is not in plain text, but encrypted as a hash value. For each user there are not only one but up to three generated password hashes. Different algorithms are used to calculate these values, but only the Salted SHA1 can be considered sufficiently safe. Table deduction USR02 The secure password hash is located in the fifth column of the pictured table deduction with the heading Password hash value. The corresponding data field in the column is called PWDSALTEDHASH. Weak Password Hash Risks You have a good and working permission concept that ensures that no processes or data can be manipulated or stolen. A potential attacker now has the ability to read out your database with the password hashes. The hash values are calculated using password crackers, which are available on the Internet at home, and the attacker now has a long list of user credentials. To damage your system, the user will now search for the appropriate permissions and perform the attack under a false identity. Identifying the actual attacker is virtually impossible. Check if your system is vulnerable too Your system generates the weak hash values if the login/password_downwards_compatibility profile parameter has an unequal value of 0.
Due to the variety of tasks and the high complexity, I find my job extremely exciting. There are very many constellations of SAP systems and databases. Each installation, migration and update brings new aspects and challenges. It is precisely these challenges that are important to me, so that I can continue to learn and develop professionally on a daily basis.
"Shortcut for SAP Systems" makes many tasks in the area of the SAP basis much easier.
In addition, the operation ensures the maintenance and availability of business processes.
If you want to get more information about SAP basis, visit the website www.sap-corner.de.
The SAP Basis Plug-In is a software component that provides SAP components with BW Service API technology as well as CRM Middleware, Supply Chain Event Management, and Financial Basis functionality to connect to these systems.