Unauthorized modification on document url in PPM, SAP security note 1686627

SAP security note 1686627, “Unauthorized modification on document url in PPM”, is a note released on 08.05.2012. Below are the symptom and SAP recommended solution.

Description

Symptom

The PPM Application can be abused by a malicious user, allowing them to modify displayed application content without authorization and potentially obtain authentication information from other legitimate users.

Solution

Apply this note or import the changes via the relevant support package.

Reason and prerequisites

In the PPM application, insufficient OUTPUT encoding is performed, which may result in cross-site scripting vulnerabilities. Cross-site scripting can be exploited to steal another user’s authentication information, such as data related to their current session. A malicious user who gains access to this data may 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.

Prerequisites: ensure that OSS notes 1420256, 1505976, and 1509753 are applied based on your current release.

References

• 1509753 – Webdocs: XSRF Protection for BSP Application WebDocuments
• 1505976 – Webdocs: Unauthorized Content Modification & Session Handling
• 1420256 – Unauthorized modification of displayed content in Webdocs