SAP Security Note
High priority
SAP security note 1664449, “Unauthorized modification of displayed content in FSCM BD”, is a advance development note released on 08.05.2012. Below are the symptom, SAP recommended solution and the affected software components.
Description
Symptom
Biller Direct 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
Install the latest support package to provide protection against these XSS issues.
The newest support package includes the latest XSS API to encode input and output parameters without any function modification.
Reason and prerequisites
Biller Direct does 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 authentication information, such as data relating to their current session. An attacker 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
- FSCM_BD: 600 to 600
- FSCM_BD: 602 to 602
- FSCM_BD: 604 to 604
- FSCM_BD: 605 to 605+
Full note on SAP: SAP Support Launchpad note 1664449
Detailed exploitation and proof-of-concept material for this note is maintained in the RedRays Security Platform. For access, contact [email protected].