SAP security note 1608934, "Potential loss of integrity in web app Terminology Tools". Below are the symptom, SAP recommended solution and the affected software components.
Description
Symptom
Terminology tools can be abused by a malicious user, allowing them to modify displayed application content without authorization, and to potentially obtain authentication information from other legitimate users. Additionally, a malicious user can execute functions in terminology tools without authentication and authorization.
Solution
To resolve the issue, implement the changes outlined in the attached correction instructions in your system. This note disables obsolete code. No testing is required after applying the note.
Reason and prerequisites
Pages within terminology tools do not sufficiently encode INPUT parameters, resulting in a reflected cross-site scripting issue. A reflected cross-site scripting attack can be used to non-permanently deface or modify displayed content from a web site. This type of attack can also be used to steal another user’s authentication information, such as data relating to their current session. A malicious user who gains access to this data may use it to impersonate the user and access all information with the same rights as the target user. If an administrator is impersonated, the security of the application may be fully compromised.
Additionally, terminology tools execute certain functions by referencing specific URLs. When a malicious user 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. This can be achieved through a cross-site scripting attack or by presenting a deceptive link to the victim.
References
Affected components
- SAP_BASIS 620 to 640
- SAP_BASIS 700 to 702
- SAP_BASIS 710 to 730
- SAP_BASIS 731
- SAP_BASIS 800
Full note on SAP: SAP Support Launchpad note 1608934
Detailed exploitation and proof-of-concept material for this note is maintained in the RedRays Security Platform. For access, contact [email protected].