SAP security note 1609808, "Unauthorized modification of displayed content in BC-SRV-KPR". Below are the symptom, SAP recommended solution and the affected software components.
Description
Symptom
BC-SRV-KPR 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.
Solution
Please apply this note or import the changes via the relevant support package.
Reason and prerequisites
Many BSP pages within BC-SRV-KPR do not sufficiently encode INPUT and OUTPUT 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.
Reflected cross-site scripting can be used to steal another user’s 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.
Affected components
- SAP_BASIS 620 to 640
- SAP_BASIS 700 to 702
- SAP_BASIS 710 to 730
- SAP_BASIS 731
Full note on SAP: SAP Support Launchpad note 1609808
Detailed exploitation and proof-of-concept material for this note is maintained in the RedRays Security Platform. For access, contact [email protected].