SAP security note 1609433, “Unauthorized modification of displayed content in WEBCUIF”. Below are the symptom, SAP recommended solution and the affected software components.
Description
Symptom
WEBCUIF can be abused by an attacker, allowing them to modify displayed application content without authorization, and to potentially obtain authentication information from other legitimate users.
Solution
Please implement the correction instructions or install the corresponding support package. For more details and to apply the correction instructions, visit the SAP Support Portal and SAP Support Portal.
Reason and prerequisites
Pages within WEBCUIF do not sufficiently encode 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 website. Additionally, such attacks can steal another user’s authentication information, potentially allowing an attacker to impersonate the user and access information with the same privileges. If an administrator is impersonated, the security of the application may be fully compromised.
Affected components
- Cross-Application Components > WebClient User Interface > User Interface > Tag Library
Full note on SAP: SAP Support Launchpad note 1609433
Detailed exploitation and proof-of-concept material for this note is maintained in the RedRays Security Platform. For access, contact [email protected].