Insufficient Authorization Checks
Adequate authorization checks are an important part of secure ABAP programming. In many statements, an appropriate authorization check is performed implicitly, for example:
There are, however, many critical statements where no implicit authorization checks are performed, for example:
CALL TRANSACTIONwithout the addition
WITH AUTHORITY-CHECK(and if the table TCDCOUPLES does not contain any appropriate entries).
- SQL reads performed on database tables
Any places in a program that a user can reach without sufficient authorizations and where no implicit
authorization check takes place must be secured explicitly using the statement
AUTHORITY-CHECK and the result of the check analyzed carefully.
A prerequisite for both implicit and explicit authorization checks is that all components required for the SAP authorization concept, such as authorizations, authorization objects, authorization objects, and so on are defined. Care must also be taken to set the check indicator correctly, to enable all required checks to take place.
7.31 | 7.40 | 7.54
Checks explicitly whether the current user can create temporary programs. This check could be used to secure the ABAP command injections example.
ID 'DEVCLASS' FIELD '$TMP'
ID 'OBJTYPE' FIELD 'PROG'
ID 'OBJNAME' DUMMY
ID 'P_GROUP' DUMMY
ID 'ACTVT' FIELD '02'.
IF sy-subrc <> 0.