CVE-2016-4016 in Manufacturing Integration
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in SAP Manufacturing Integration and Intelligence (aka MII, formerly xMII) allows remote attackers to inject arbitrary web script or HTML via vectors related to UR Control, aka SAP Security Note 2201295.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 06/26/2024
The vulnerability identified as CVE-2016-4016 represents a critical cross-site scripting flaw within SAP Manufacturing Integration and Intelligence (MII) platform, formerly known as xMII. This web application security weakness specifically affects the UR Control functionality of the system, creating a significant attack surface that remote adversaries can exploit to execute malicious code within the context of affected user sessions. The vulnerability stems from inadequate input validation and output encoding mechanisms within the MII application's web interface components, particularly those handling user-supplied data through the UR Control module.
The technical implementation of this XSS vulnerability occurs when the application fails to properly sanitize or encode user-controllable input parameters before rendering them in web responses. Attackers can craft malicious payloads that, when executed, will be interpreted by web browsers as legitimate content rather than harmful scripts. This flaw enables adversaries to inject arbitrary HTML and JavaScript code into web pages viewed by other users, potentially allowing them to hijack user sessions, steal sensitive information, or perform unauthorized actions on behalf of victims. The vulnerability specifically manifests within the UR Control component which handles various user interface elements and data presentation functions within the manufacturing intelligence platform.
The operational impact of this vulnerability extends beyond simple script injection, as it can lead to complete compromise of user sessions and potential lateral movement within enterprise networks. Attackers exploiting this weakness can leverage the XSS flaw to establish persistent access to manufacturing intelligence systems, potentially gaining visibility into critical production data, operational parameters, and business-sensitive information. The vulnerability affects organizations utilizing SAP MII platforms, which are commonly deployed in manufacturing environments where operational technology and information technology systems intersect, making the potential attack surface particularly concerning for industrial control systems and manufacturing processes.
Organizations should implement comprehensive mitigation strategies including immediate patching of affected SAP MII installations, deployment of web application firewalls to detect and block malicious script injection attempts, and enhanced input validation procedures throughout the application. The vulnerability aligns with CWE-79 which categorizes cross-site scripting flaws as a fundamental web application security weakness, and maps to ATT&CK technique T1566 related to spearphishing with malicious attachments or links. Security teams must also consider implementing content security policies, regular security assessments of web applications, and user education programs to reduce the risk of successful exploitation through social engineering vectors that might accompany XSS attacks.