Installation/upgrade of the SAP systems based on HANA Platform
SAP job control
SAP administrators can basically be found wherever SAP systems are used. These are now numerous industries and departments of companies. SAP systems can be found in accounting, costing, activity-based costing and controlling. In all these areas, they take care of the smooth functioning and development, thus helping the company to make internal processes more efficient and consequently save costs and resources.
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.
SAP RFC Gateway Security through secinfo and reginfo ACL files
If all financial and sales activities as well as production, logistics and the personnel administrators run via one system, measures must be taken to ensure reliable functioning on the one hand and to protect the system internally and externally on the other. Due to the long history, the increased availability requirements often do not match the actual protection measures, so that security risks often arise at this point.
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, a correct configuration of the SAP gateway is required. 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.
"Shortcut for SAP Systems" makes many tasks in the area of the SAP basis much easier.
After the addition of Java Stack (the applications developed in J2EE, BSP, JSP, etc), the security standard for business processes was increased.
SAP Basis is the foundation of any SAP system. You can find a lot of useful information about it on this page: www.sap-corner.de.
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