Unauthorized modification of displayed content inPLM-PPM-PDN, SAP security note 1677068

SAP security note 1677068, "Unauthorized modification of displayed content in PLM-PPM-PDN", is a note. Below are the symptom and SAP recommended solution.

Description

Symptom

PLM-PPM-PDN 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

Please apply this note or import the changes via the relevant support package.

Run Report RITS_XSS_PARAM_PDN. For releases 110 and 200: go to transaction SE80, navigate to Repository Infosystem > Web Objects > ITS Services, select Service PDN_WUI_2_DYNP and execute, then enter the two parameters ~AUTO_HTML_ESCAPING = 1 and ~NEW_XSS_FUNCTIONS = 1.

Reason and prerequisites

ITS Services within PLM-PPM-PDN do not sufficiently encode input 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 website.

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.