CVE-2013-3319 in NetWeaver
Summary
by MITRE
The GetComputerSystem method in the HostControl service in SAP Netweaver 7.03 allows remote attackers to obtain sensitive information via a crafted SOAP request to TCP port 1128.
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Analysis
by VulDB Data Team • 05/20/2021
The vulnerability identified as CVE-2013-3319 resides within the HostControl service of SAP Netweaver 7.03, specifically affecting the GetComputerSystem method implementation. This flaw represents a critical information disclosure vulnerability that enables remote attackers to extract sensitive system information through carefully crafted SOAP requests transmitted over TCP port 1128. The vulnerability stems from insufficient input validation and access control mechanisms within the HostControl service, which processes incoming SOAP messages without adequate sanitization of the request parameters. The affected service operates as part of SAP Netweaver's infrastructure management capabilities, providing system monitoring and control functions that are essential for enterprise system administration. Attackers can exploit this vulnerability by sending malicious SOAP requests that manipulate the GetComputerSystem method parameters, potentially gaining unauthorized access to system configuration details, hardware specifications, and other sensitive operational data.
The technical exploitation of this vulnerability involves leveraging the SOAP protocol interface exposed by the HostControl service to craft specific requests that bypass normal access controls and authentication mechanisms. The flaw occurs because the service does not properly validate or sanitize the input parameters received through SOAP messages, allowing attackers to inject malformed requests that trigger unintended system responses. This type of vulnerability falls under the category of insufficient input validation as classified by CWE-20, where the application fails to properly validate input data before processing it. The attack vector is particularly concerning because it operates over a well-known TCP port (1128) that is often exposed in enterprise environments, making it easily discoverable by threat actors. The vulnerability's impact extends beyond simple information gathering, as the sensitive data obtained through this method can provide attackers with valuable reconnaissance information for planning more sophisticated attacks against the SAP infrastructure.
The operational implications of CVE-2013-3319 are severe for organizations running SAP Netweaver 7.03 systems, as the exposure of system information can facilitate subsequent attacks and compromise the overall security posture. The sensitive data accessible through this vulnerability includes computer system details, configuration parameters, and potentially system identifiers that could be used to tailor more targeted attacks against the enterprise infrastructure. This information disclosure vulnerability creates opportunities for attackers to map the target environment, identify system components, and potentially escalate privileges or conduct further reconnaissance activities. The vulnerability also represents a significant risk to SAP's security model, as it demonstrates weaknesses in the HostControl service's access control implementation and highlights the importance of proper input validation in enterprise web services. Organizations may face compliance violations and regulatory penalties if sensitive information is disclosed through this vulnerability, particularly in environments governed by standards such as SOX, HIPAA, or PCI DSS.
Organizations should implement immediate mitigations including network segmentation to restrict access to TCP port 1128, deployment of web application firewalls to filter malicious SOAP requests, and implementation of proper access controls for the HostControl service. The vulnerability aligns with ATT&CK technique T1082 (System Information Discovery) as it enables adversaries to gather system information without direct system access. SAP released patches and updates to address this vulnerability, and organizations should ensure they are running patched versions of SAP Netweaver. Additional mitigations include disabling unnecessary services, implementing strict firewall rules, and conducting regular security assessments of SAP systems. The vulnerability also underscores the importance of following secure coding practices and proper input validation as recommended by OWASP and other security frameworks. Organizations should also consider implementing monitoring solutions to detect unusual SOAP request patterns that may indicate exploitation attempts against the HostControl service.