STRUST Trust Manager
OData Services
A secure SAP system does not only include a good role concept. It is also necessary to check whether a user should (still) have a specific role. Regular verification of role assignment is called recertification. In this blog post, I'd like to introduce you to the need for recertifications and our own tool, EasyReCert. The need for recertification - scenarios: Example 1: The "apprentice problem" Imagine the following scenario: A new employee (e.g. apprenticeship or trainee) will go through various departments as part of his or her training and will work on various projects. Of course, an SAP User will be made available to your employee right at the beginning, which is equipped with appropriate roles. As each project and department passes, the employee repeatedly needs new permissions to meet the requirements. After the employee has successfully completed his or her induction and is now in a permanent position, he or she still has permissions that are not necessary to perform his or her duties. This violates the principle of "last privilede" and represents a potential security risk for your company. Example 2: The change of department The change of department is one scenario that probably occurs in every company. If a change of department does not automatically involve a complete reallocation of roles and the employee simply takes his old permissions with him, critical combinations of permissions can occur very quickly. For example, an employee who has permissions in accounts payable and accounts receivable violates the SoD ("Segregation of Duties") principle and poses a potential security risk to your company. Recertification as part of a revision: The two examples above show that a regular review of role allocation identifies potential security risks for your business and can be addressed.
In the beginning, in our company, the installation and management of the systems were dealt with by the functional consultants/consultants of the respective systems. The CRM consultant was responsible for the SAP CRM system, the SRM consultant for the SAP SRM, etc.
SWU9 Trace of the BC-BMT-WFM component
SAP Basis is the cornerstone of your SAP system and failures can lead to significant and annoying problems. For assistance in building and expanding SAP Basis, SAP Basis consultants can help. Certified SAP consultants enable tailored solutions for any business landscape.
Either temporary programme calls are blocked that are actually desired or enormously large gateway logs must be analysed. If, due to the heavy workload, one were to decide to forgo the use of the access control lists permanently, this would be a major security vulnerability. The unprotected system does not have any limitations on the external services that may register, and there are no rules for running programmes. One possible consequence would be, for example, the registration of an external system on which malicious programmes exist. At the moment when foreign programmes are running on your system without any control, you can expect that great damage will be done. For example, it ranges from an unnoticed reading of purchase and sales figures, a diversion of funds, to a paralysis or manipulation of the entire system. In addition, this scenario is also possible for poorly maintained access control lists. Our solution: secinfo and reginfo Generator for SAP RFC Gateway To solve the problem, we have developed a generator that can automatically create secinfo and reginfo files based on gateway logs. The basic idea is based on the logging-based approach. It performs the task of time-consuming analysis of log files and also ensures maximum reliability through automation. Nevertheless, the entries of the generated files should be checked by one person. Since the log files used as input are sensitive data, of course none of the inserted data leave your system. More information about the generator can be found here.
Tools such as "Shortcut for SAP Systems" are extremely useful in basic administration.
The option of these checks is usually referred to as "security analysis in extended program check".
Several empirical studies were also carried out in the course of the work.