Unauthorized modification of contents displayed in ICF, SAP security note 1567635

SAP security note 1567635, “Unauthorized modification of contents displayed in ICF”. Below are the symptom, SAP recommended solution and the affected software components.

Description

Symptom

Data in the Internet Communication Framework (ICF) 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

Implement the specified source code corrections by implementing the relevant correction instructions.

Reason and prerequisites

API interfaces within the ICF do not sufficiently encode INPUT/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. 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.

CVSS

Score 0

References

• Automatic checks for security notes using RSECNOTE (outdated)

Affected components

• SAP_BASIS (640)
• SAP_BASIS (700-702)
• SAP_BASIS (710-730)