CVE-2007-3624 in Message Server
Summary
by MITRE
Heap-based buffer overflow in the Message HTTP Server in SAP Message Server allows remote attackers to execute arbitrary code via a long string in the group parameter to /msgserver/html/group.
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Analysis
by VulDB Data Team • 02/21/2025
The vulnerability described in CVE-2007-3624 represents a critical heap-based buffer overflow within SAP Message Server's HTTP server component. This flaw exists in the handling of HTTP requests directed to the /msgserver/html/group endpoint where the group parameter is processed without adequate bounds checking. The vulnerability stems from insufficient input validation mechanisms that fail to properly sanitize user-supplied data before incorporating it into heap-allocated memory structures. Attackers can exploit this weakness by crafting malicious HTTP requests containing excessively long strings in the group parameter, which then triggers memory corruption during processing. The heap-based nature of this buffer overflow means that the vulnerability can be particularly dangerous as it may allow attackers to overwrite adjacent memory regions, potentially leading to arbitrary code execution with the privileges of the affected service.
The technical implementation of this vulnerability aligns with CWE-121, which describes heap-based buffer overflow conditions where insufficient bounds checking allows attackers to write beyond allocated memory boundaries. This particular flaw demonstrates how web application servers can become attack vectors when they fail to implement proper input sanitization routines. The SAP Message Server serves as a critical component in SAP NetWeaver environments, facilitating communication between various SAP system components, making this vulnerability particularly concerning for enterprise environments. When exploited, the buffer overflow can result in complete system compromise, allowing attackers to execute malicious code remotely without requiring authentication. The attack surface is expanded due to the server's accessibility over network protocols, making it a prime target for automated exploitation tools that scan for known vulnerabilities in SAP infrastructure.
The operational impact of this vulnerability extends beyond simple code execution to encompass potential data breaches, system takeover, and disruption of business operations. Organizations running SAP systems are particularly vulnerable as the Message Server acts as a central communication hub, and compromising this component can lead to cascading failures throughout the SAP ecosystem. The vulnerability's remote exploitability means that attackers can target systems from outside the corporate network, significantly increasing the attack surface. This type of vulnerability commonly maps to ATT&CK technique T1203, which covers exploitation of remote services through network-based attacks. The consequences for affected enterprises include potential regulatory compliance violations, financial losses, and reputational damage. Organizations may also face increased risk of lateral movement within their networks as attackers can use compromised Message Server instances as launching points for further attacks against other system components.
Mitigation strategies for CVE-2007-3624 should include immediate patching of affected SAP systems with the vendor-provided security updates, which typically address the buffer overflow through proper input validation and bounds checking mechanisms. Network segmentation and firewall rules should be implemented to restrict access to the Message Server's HTTP endpoints, particularly limiting access to only trusted administrative networks. Additionally, organizations should deploy intrusion detection systems that can identify suspicious HTTP requests containing malformed group parameters. Regular security assessments and vulnerability scanning should be conducted to identify similar weaknesses in other SAP components or third-party applications that may share similar architectural patterns. The implementation of web application firewalls can provide an additional layer of protection by filtering malicious requests before they reach the vulnerable Message Server component. System administrators should also implement monitoring solutions that can detect anomalous behavior patterns consistent with exploitation attempts, such as unusual memory allocation patterns or unexpected process behavior. Organizations should maintain comprehensive incident response procedures that include specific protocols for handling SAP-related vulnerabilities and ensure that security teams are trained to recognize and respond to attacks targeting enterprise messaging infrastructure.