Unauthorized modification of BSP in CRM-MKT-MPL, SAP security note 1672438

SAP security note 1672438, “Unauthorized modification of BSP in CRM-MKT-MPL”, is a program error note released on 08.05.2012. Below are the symptom and SAP recommended solution.

Description

Symptom

CRM-MKT-MPL 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

BSP pages CORM_VISUALIZE, MKTSC_DEFAULT, CPG_TODO, CPGEF_PLANNING, CPGOE_ABLOCKS, CPTEF_PLANNING, SCNOE_SS, and TPMOE within CRM-MKT-MPL 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.

References

• 1582870 – ABAP XSS Escaping Support
• 1582867 – Security options (XSS) for ESCAPE