Unauthorized modification of displayed content in SUS, SAP security note 1442775

SAP security note 1442775, "Unauthorized modification of displayed content in SUS", is a program error note released on 19.04.2012. Below are the symptom and SAP recommended solution.

Description

Symptom

The SRM SUS could be abused by a malicious user, who could modify displayed application content without authorization and potentially obtain authentication information from other legitimate users.

Solution

Implement the attached correction instructions.

Reason and prerequisites

Within SUS, the input parameters are not sufficiently encoded, 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. It can also 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 the application with the same rights as the target user. If an administrator is impersonated, the application’s security could be fully compromised.