Advisory
SAP takes the security of its vast product portfolio very seriously and thus releases security fixes for
vulnerabilities reported by external researchers and their customers every second Tuesday of the month.
SAP Note 3497347
was released on
10.09.2024 and deals with
"[CVE-2024-42378] Cross-Site Scripting (XSS) in eProcurement on S/4HANA" within ABAP.
We advice you to follow the instructions, to resolve
cross-site scripting (xss)
with a
medium potential for exploitation
in component MM-PUR-SSP.
According to SAP Security Advisory team a workaround exists. It is advisable to implement the correction as monthly patch process.
Missing authority checks are still the most common security defect related to authorizations in custom code.
Since SAP uses an explicit authorization model, an authority checks must be coded in order to be executed. If an
explicit check is not coded, all users have access.
This type of vulnerability not only exists in SAP standard it also exists in customer coding. Check your custom
developments for vulnerabilities that pose a risk to your systems. SecurityBridge helps
detect code
vulnerabilities before they are implemented in production.
Cross-site scripting (XSS) is the name of a class of security vulnerabilities that can occur in web-based
applications. XSS combines
all vulnerabilities that allow an attacker to inject HTML Markup and/or JavaScript into the front end of the
affected web application.
XSS attacks can occur whenever the application dynamically creates its HTML/JavaScript/CSS content, which is passed
to the
user's web browser, and attacker-controlled values are used in this process. If these values are included in the
generated code without proper validation and encoding, the attacker is able to include arbitrary
coding snippets into the application's front end. The code is then rendered by the victim's web browser and
interpreted in the victim's current authentication context.
Risk specification
eProcurement on SAP S/4HANA allows an authenticated attacker to inject malicious scripts due to insufficiently validated user controlled inputs, resulting in Cross-Site Scripting (XSS) vulnerability.Solution
The user input is now properly encoded to prevent a successful XSS attack. Alternativly, the consulting team has proposed the following: "Cross-site scripting/request forgery filter engine on IDS/IPS/firewall systems. ". The suggestion may be considered, as a workaround or compensating mitigation. We recommend installing/applying the correction wherever possible and as soon as possible. Base your decision on whether or not to apply the patch on your companies and systems risk perspective and consider the provided CVSS 6.1 score.
Affected System
The advisory 3497347 describes a problem within an ABAP based systems of a specific version. Affected versions are described below. ABAP software is deployed in various software components and is widely used within the SAP product portfolio.
SAP NetWeaver Application Server (formally known as SAP Web Application Server) is a building block of SAP NetWeaver. It is the foundation for most software products developed by SAP SE. SAP NetWeaver systems exist with Java and/or ABAP stacks. The advisory could be relevant for single and dual-stack ABAP installations.
The advisory is valid for
- S4CORE 102 48
- S4CORE 103 52
- S4CORE 104 47
- S4CORE 105 35
- S4CORE 106 25
- S4CORE 107 19
- S4CORE 108 13
- SAP_APPL 606 18
- SAP_APPL 617 15
- SAP_APPL 618 16
- 8.8 [CVE-2024-22126] Cross Site Scripting vulnerability in NetWeaver AS Java (User Admin Application)
- 8.7 [CVE-2023-42472] Insufficient File type validation in SAP BusinessObjects Business Intelligence Platform (Web Intelligence HTML interface)
- 8.3 [CVE-2021-33702] Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver Enterprise Portal
- 8.3 [CVE-2021-33703] Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver Enterprise Portal
- 8.2 [CVE-2023-33991] Stored Cross-Site Scripting vulnerability in SAP UI5 (Variant Management)