CVE-2025-42995 in MDM Server
Summary
by MITRE • 06/10/2025
SAP MDM Server Read function allows an attacker to send specially crafted packets which could trigger a memory read access violation in the server process that would then fail and exit unexpectedly causing high impact on availability with no impact on confidentiality and integrity of the application.
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Analysis
by VulDB Data Team • 06/10/2025
SAP MDM Server presents a critical availability vulnerability through its Read function implementation that enables remote attackers to induce memory read access violations. This flaw exists within the server process handling mechanism where specially crafted packets can be transmitted to trigger unauthorized memory access patterns. The vulnerability operates at the core of the application's data processing pipeline, specifically targeting the memory management subsystem that handles read operations. When exploited, these crafted packets cause the server process to encounter memory access violations that result in abrupt termination and system failure. The technical execution requires minimal privileges and can be accomplished through network-based attacks without requiring authentication or specialized access rights. The memory read access violation occurs when the server process attempts to access memory locations that are either unmapped or protected, leading to a segmentation fault that terminates the process. This type of vulnerability falls under CWE-125: Out-of-bounds Read which represents a fundamental memory safety issue in software design. The impact on system availability is severe as the server process failure results in complete service disruption for all users and applications relying on the MDM Server functionality. Organizations utilizing SAP MDM Server face potential business interruption and operational downtime that can affect data management workflows, master data synchronization, and enterprise data governance processes. The vulnerability demonstrates characteristics aligned with attack techniques documented in the MITRE ATT&CK framework under T1499.004: Endpoint Denial of Service, specifically targeting application availability through memory corruption. Unlike other vulnerabilities that might compromise data confidentiality or integrity, this flaw exclusively affects system availability, making it particularly dangerous for mission-critical enterprise applications where uptime is essential. The memory access violation occurs during normal operation when the server processes legitimate read requests that are then manipulated to trigger the exploitable condition. The server process terminates unexpectedly without proper error handling or graceful degradation mechanisms, leaving the system in an unavailable state until manual intervention or automatic restart occurs. This vulnerability represents a classic example of a denial of service condition that can be amplified through automated attack tools, potentially leading to sustained availability disruption. The exploitation process requires understanding of the server's memory layout and packet structure, making it accessible to attackers with moderate technical skills. Organizations should implement immediate mitigations including network segmentation, access controls, and monitoring for suspicious packet patterns that could indicate exploitation attempts. The vulnerability underscores the importance of proper memory management practices and input validation in enterprise server applications, particularly those handling sensitive business data. System administrators should monitor for process termination events and implement automated recovery mechanisms to minimize impact from such availability attacks. The flaw demonstrates the critical need for comprehensive security testing including memory safety analysis and fuzzing techniques to identify similar vulnerabilities before they can be exploited in production environments. SAP should prioritize this vulnerability in their patch management cycle and provide detailed guidance for organizations to implement appropriate defensive measures while awaiting official security updates.