SAP security note 1447622, "Cross Site Scripting in BSP", is a program error note released on 15.04.2010. Below are the symptom and SAP recommended solution.
Description
Symptom
Unauthorized modification of displayed content in BSPs GADGET_CREATOR and GADGET_STARTER.
The BSPs GADGET_CREATOR and GADGET_STARTER 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
The problem is solved with SAP_BASIS 7.02 SP 4. Alternatively, the attached coding correction can be implemented in advance.
Reason and prerequisites
Pages within the BSPs GADGET_CREATOR and GADGET_STARTER 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 website.
Reflected cross site scripting can be used to steal another user’s authentication information such as data relating to their current session. An attacker who gains access to this data may use this to impersonate the user and access all information with the same rights as the target user. In case of an administrator being impersonated, a full compromise of the application’s security may occur.
References
This note refers to
Full note on SAP: SAP Support Launchpad note 1447622
Detailed exploitation and proof-of-concept material for this note is maintained in the RedRays Security Platform. For access, contact [email protected].