SAP security note 1420256, "Unauthorized modification of displayed content in Webdocs". Below are the symptom, SAP recommended solution and the affected software components.
Description
Symptom
The HTML files of the BSP Application Webdocument are vulnerable to Cross Site Scripting (XSS). An attacker can embed malicious HTML into a page that others will open, allowing unauthorized modification of displayed application content. This vulnerability can be exploited to obtain authentication information from legitimate users, potentially leading to impersonation and full compromise of the application’s security if an administrator is targeted.
Solution
Implement the corrections provided with this SAP Note. This note addresses the XSS vulnerability in the HTML files for Webdocuments.
Reason and prerequisites
Pages within the Webdocuments do not adequately encode INPUT and OUTPUT parameters, resulting in a reflected cross-site scripting issue. This vulnerability allows for non-permanent defacement or modification of displayed content on the website. Additionally, it can be used to steal authentication information, such as session data, enabling attackers to impersonate users and access information with the same privileges. If an administrator’s credentials are compromised, the entire application’s security may be at risk.
References
- 1686627 – Unauthorized modification on document url in PPM
- 1678243 – Unauthorized modification of BSP in Webdocuments (2)
- 1670098 – Unauthorized modification of BSP in Webdocuments
Affected components
- EA-APPL 110
- EA-APPL 200
- EA-APPL 500
- EA-APPL 600
- EA-APPL 602
- EA-APPL 603
- EA-APPL 604
- EA-APPL 605
Full note on SAP: SAP Support Launchpad note 1420256
Detailed exploitation and proof-of-concept material for this note is maintained in the RedRays Security Platform. For access, contact [email protected].