SAP security note 1690738, "Unauthorized modification in BSP application in CRM-ISP-BTX", is released on 12.06.2012. Below are the symptom and SAP recommended solution.
Description
Symptom
CRM-IPS-BTX 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 SAP Note 1690738 or import the changes via the relevant support package.
Reason and prerequisites
BSP Pages: session_buffered_frame.htm and session_single_frame.htm (from BSP application CRMCMP_GRM_GPM) within CRM-IPS-BTX do not sufficiently encode OUTPUT parameters, resulting in a cross-site scripting issue.
Cross-site scripting can 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.
Full note on SAP: SAP Support Launchpad note 1690738
Detailed exploitation and proof-of-concept material for this note is maintained in the RedRays Security Platform. For access, contact [email protected].