CVE-2023-35872 in NetWeaver Process Integration
Summary
by MITRE • 07/11/2023
The Message Display Tool (MDT) of SAP NetWeaver Process Integration - version SAP_XIAF 7.50, does not perform authentication checks for certain functionalities that require user identity. An unauthenticated user might access technical data about the product status and its configuration. The vulnerability does not allow access to sensitive information or administrative functionalities. On successful exploitation an attacker can cause limited impact on confidentiality and availability of the application.
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Analysis
by VulDB Data Team • 07/11/2023
The vulnerability identified as CVE-2023-35872 affects the Message Display Tool component within SAP NetWeaver Process Integration, specifically in the SAP_XIAF 7.50 version. This flaw represents a critical authentication bypass issue that undermines the security posture of enterprise integration platforms. The Message Display Tool serves as a diagnostic interface for monitoring message flows and system status within the integration environment, making it a potentially attractive target for threat actors seeking to gather intelligence about the underlying infrastructure.
The technical implementation flaw stems from insufficient authentication controls within the MDT component, where certain functionalities that should require user identity verification are accessible without proper authentication mechanisms. This misconfiguration allows unauthenticated attackers to access technical data regarding product status and configuration information through the affected interface. The vulnerability manifests as a failure to enforce proper access controls, creating a path for unauthorized users to obtain information about the system's operational state and configuration parameters.
From an operational impact perspective, while the vulnerability does not provide access to sensitive data or administrative functions, it does enable attackers to gather information that could aid in planning more sophisticated attacks. The limited impact on confidentiality and availability means that while direct data breaches are prevented, the exposure of system status and configuration details could reveal architectural insights that attackers might leverage in subsequent phases of an attack. This information gathering capability aligns with ATT&CK technique T1069.001 for credential access and reconnaissance activities.
The security implications extend beyond simple information disclosure, as this vulnerability creates opportunities for attackers to map the integration environment and identify potential attack vectors. Organizations using SAP NetWeaver Process Integration may face increased risk of targeted attacks that exploit the gathered information to discover additional vulnerabilities or weaknesses in the broader integration landscape. This scenario demonstrates how seemingly limited access flaws can contribute to broader reconnaissance activities within enterprise environments.
The vulnerability maps to CWE-287, which addresses improper authentication issues in software systems, and aligns with ATT&CK framework's initial access and reconnaissance phases. Organizations should implement immediate mitigations including network segmentation to restrict access to the MDT interface, enforce proper authentication controls, and monitor for unauthorized access attempts. Additionally, regular security assessments and vulnerability scanning should be conducted to identify similar authentication bypass issues across other SAP components and integration points within the enterprise infrastructure.