CVE-2019-0328 in NetWeaver Process Integration
Summary
by MITRE
ABAP Tests Modules (SAP Basis, versions 7.0, 7.1, 7.3, 7.31, 7.4, 7.5) of SAP NetWeaver Process Integration enables an attacker the execution of OS commands with privileged rights. An attacker could thereby impact the integrity and availability of the system.
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Analysis
by VulDB Data Team • 10/24/2023
The vulnerability identified as CVE-2019-0328 resides within SAP NetWeaver Process Integration's ABAP Test Modules functionality across multiple SAP Basis versions including 7.0 through 7.5. This represents a critical security flaw that allows remote attackers to execute operating system commands with elevated privileges, fundamentally compromising the system's integrity and availability. The vulnerability specifically affects the ABAP Test Modules component which is part of the broader SAP NetWeaver platform ecosystem.
The technical flaw manifests through improper input validation and insufficient access controls within the ABAP Test Modules implementation. Attackers can exploit this weakness to inject and execute arbitrary operating system commands on the affected system. The vulnerability stems from inadequate sanitization of user-supplied data that flows into system command execution contexts, creating a path for privilege escalation and unauthorized system manipulation. This issue falls under the CWE-78 category of Improper Neutralization of Special Elements used in an OS Command, which is a well-documented weakness in software security engineering.
The operational impact of this vulnerability is severe and multifaceted. An attacker who successfully exploits CVE-2019-0328 can gain full control over the affected SAP system with the privileges of the executing process, typically running with administrative rights. This enables complete system compromise including data exfiltration, system modification, service disruption, and potential lateral movement within the network. The availability aspect is particularly concerning as attackers could potentially cause system downtime through command execution that affects critical system processes or services. The integrity impact is equally devastating as unauthorized modifications to system files, configurations, or data could go undetected for extended periods.
Organizations affected by this vulnerability should immediately implement the security patches provided by SAP to address the identified flaw. The mitigation strategy should include comprehensive network segmentation to limit access to SAP systems, implementation of robust monitoring and logging mechanisms to detect unauthorized command executions, and regular security assessments to identify potential exploitation attempts. Additionally, organizations should consider implementing network access controls and privileged access management solutions to minimize the attack surface. This vulnerability aligns with several ATT&CK techniques including privilege escalation and command and control operations, making it particularly dangerous in enterprise environments where SAP systems often serve as critical business infrastructure components.