SAP security note 1639131, "Unauthorized execution of application function in WDA". Below are the symptom, SAP recommended solution and the affected software components.
Description
Symptom
An attacker can execute functions in Web Dynpro ABAP without authentication and authorization.
Solution
The attached correction instructions deactivate the affected functions in the Web Dynpro ABAP. They cannot be reactivated. The deactivated functions were purely meant for testing Web Dynpro ABAP applications and are not required for the production operation of Web Dynpro ABAP applications. As of Release 7.01 and 7.11, functions are available again for testing.
Reason and prerequisites
Web Dynpro ABAP executes certain functions by referencing specific URLs. When an attacker tricks an authenticated user’s browser into making a request containing a certain URL and specific parameters, the function is executed with the rights of the authenticated user. The attacker may use a cross-site scripting attack to do this, or they may present a link to the victim.
References
- SAP Note 1447337: User can obtain information without authorization
- SAP Note 1496038: Unsecure standard configuration
Affected components
- SAP_BASIS versions 700 and 710
Full note on SAP: SAP Support Launchpad note 1639131
Detailed exploitation and proof-of-concept material for this note is maintained in the RedRays Security Platform. For access, contact [email protected].