CVE-2003-1039 in MySAP Business Suite
Summary
by MITRE
Multiple buffer overflows in the mySAP.com architecture for SAP allow remote attackers to execute arbitrary code via a long HTTP Host header to (1) Message Server, (2) Web Dispatcher, or (3) Application Server.
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Analysis
by VulDB Data Team • 07/06/2017
The vulnerability identified as CVE-2003-1039 represents a critical security flaw within the mySAP.com architecture that affects multiple components of the SAP enterprise software ecosystem. This vulnerability stems from improper input validation mechanisms within the SAP communication protocols, specifically targeting the HTTP Host header field that is commonly used for routing requests within web applications. The affected components include the Message Server which handles communication coordination, the Web Dispatcher responsible for request routing, and the Application Server that processes business logic, making this a particularly dangerous vulnerability given the central role these components play in SAP infrastructure operations.
The technical implementation of this vulnerability manifests through buffer overflow conditions that occur when the system processes HTTP Host headers exceeding predetermined memory allocation limits. When an attacker crafts a maliciously long Host header value, the system's parsing routine fails to properly validate the input length before copying it into fixed-size memory buffers. This fundamental flaw in memory management allows attackers to overwrite adjacent memory locations, potentially corrupting program execution flow and enabling arbitrary code execution. The vulnerability operates at the protocol level, making it particularly insidious as it can be exploited through standard HTTP traffic without requiring specialized tools or privileged access.
The operational impact of this vulnerability extends far beyond simple code execution capabilities, as it provides attackers with complete control over affected SAP components and potentially the entire underlying system. Attackers can leverage this vulnerability to escalate privileges, access sensitive business data, modify system configurations, or establish persistent backdoors within the enterprise network. Given that SAP systems typically handle critical business operations including financial transactions, customer data management, and supply chain coordination, the potential damage from exploitation could result in significant financial losses, regulatory compliance violations, and reputational harm. The vulnerability's remote exploitability means that attackers can target these systems from anywhere on the internet without requiring physical access or prior authentication.
Organizations affected by this vulnerability should implement immediate mitigations including applying the appropriate SAP security patches and updates released by SAP to address the buffer overflow conditions in the affected components. Network segmentation and firewall rules should be configured to limit access to SAP components, particularly restricting HTTP Host header processing to trusted sources only. Input validation should be enhanced at multiple layers including web application firewalls, proxy servers, and application-level controls to prevent malformed Host headers from reaching the vulnerable SAP components. Additionally, security monitoring should be implemented to detect unusual patterns in Host header usage that might indicate exploitation attempts, and regular security assessments should be conducted to identify similar vulnerabilities in other system components. This vulnerability aligns with CWE-121, which describes stack-based buffer overflow conditions, and represents a technique commonly referenced in ATT&CK framework under T1059 for execution through command and scripting interpreters, emphasizing the critical need for comprehensive security measures across all system layers.