CVE-2009-4988 in Business One 2005-a
Summary
by MITRE
Stack-based buffer overflow in NT_Naming_Service.exe in SAP Business One 2005 A 6.80.123 and 6.80.320 allows remote attackers to execute arbitrary code via a long GIOP request to TCP port 30000.
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Analysis
by VulDB Data Team • 11/17/2025
The vulnerability identified as CVE-2009-4988 represents a critical stack-based buffer overflow flaw within the NT_Naming_Service.exe component of SAP Business One versions 2005 A 6.80.123 and 6.80.320. This vulnerability exists in the naming service implementation that handles GIOP (General Inter-ORB Protocol) requests, which are fundamental to CORBA (Common Object Request Broker Architecture) communication. The flaw specifically manifests when processing incoming requests on TCP port 30000, making it accessible to remote attackers who can exploit this weakness without requiring local system access or authentication credentials.
The technical nature of this vulnerability stems from improper input validation within the NT_Naming_Service.exe application. When the service receives a specially crafted GIOP request containing an excessively long payload, it fails to properly bounds-check the incoming data before copying it into a fixed-size stack buffer. This classic buffer overflow condition allows an attacker to overwrite adjacent memory locations including return addresses and control data, potentially enabling arbitrary code execution with the privileges of the affected service. The vulnerability is categorized as CWE-121 Stack-based Buffer Overflow, which directly maps to the attack patterns documented in the MITRE ATT&CK framework under the technique of code injection.
The operational impact of this vulnerability is severe as it provides remote code execution capabilities to unauthenticated attackers who can reach the targeted SAP Business One system through network exposure on port 30000. This vulnerability affects organizations running SAP Business One 2005 A versions that have not been patched, potentially allowing attackers to gain full control over the affected system, escalate privileges, and establish persistent access for further exploitation. The attack vector is particularly dangerous because it does not require any authentication, making it accessible to anyone who can reach the network port, and the affected service typically runs with elevated privileges. Organizations using SAP Business One in enterprise environments face significant risk as this vulnerability can be leveraged for data exfiltration, system compromise, and lateral movement within network perimeters.
Mitigation strategies for CVE-2009-4988 should prioritize immediate patch application from SAP, as the vendor released security patches specifically addressing this buffer overflow vulnerability. Network segmentation and firewall rules should be implemented to restrict access to TCP port 30000, limiting exposure to trusted networks only. Additionally, implementing network monitoring and intrusion detection systems can help identify suspicious GIOP traffic patterns that may indicate exploitation attempts. Organizations should also consider disabling the NT_Naming_Service.exe component if it is not essential for business operations, as this service is typically not required for standard SAP Business One functionality. Regular security assessments and vulnerability scanning should be conducted to ensure no other similar buffer overflow vulnerabilities exist within the SAP ecosystem or related applications, aligning with industry best practices for maintaining secure enterprise environments.