WebReporting Unauthorized modification of displayed content, SAP security note 1453457

SAP security note 1453457, "WebReporting: Unauthorized modification of displayed content", is a special development note released on 13.04.2010. Below are the symptom and SAP recommended solution.

Description

Symptom

WebReporting 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

This correction…

Reason and prerequisites

An error message within WebReporting does not sufficiently encode 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 could use it to impersonate the user and access all information with the same rights as the target user. If an administrator is impersonated, the application’s security could be fully compromised.