CVE-2014-9595 in NetWeaver Dispatcher
Summary
by MITRE
Buffer overflow in the SAP NetWeaver Dispatcher in SAP Kernel 7.00 32-bit and 7.40 64-bit allows remote authenticated users to cause a denial of service or possibly execute arbitrary code via unspecified vectors, related to the Spool System, aka SAP Note 2061271.
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Analysis
by VulDB Data Team • 03/08/2022
The vulnerability identified as CVE-2014-9595 represents a critical buffer overflow flaw within the SAP NetWeaver Dispatcher component of SAP Kernel versions 7.00 32-bit and 7.40 64-bit. This security weakness specifically affects the Spool System functionality and was documented under SAP Note 2061271, highlighting its impact on enterprise SAP environments. The vulnerability exposes a fundamental memory management issue that can be exploited by authenticated remote attackers to compromise system integrity and availability.
The technical implementation of this buffer overflow occurs within the Spool System processing mechanisms of the SAP NetWeaver Dispatcher, where insufficient input validation and boundary checking allow malicious data to overwrite adjacent memory regions. The flaw manifests when the system processes certain spool-related requests that contain oversized or malformed data structures, leading to memory corruption that can result in unpredictable behavior. This type of vulnerability falls under CWE-121, which specifically addresses stack-based buffer overflow conditions, and potentially CWE-122 for heap-based buffer overflows depending on the exact memory layout during exploitation.
From an operational perspective, this vulnerability presents significant risk to organizations relying on SAP NetWeaver systems, as it allows authenticated attackers to trigger denial of service conditions or potentially achieve arbitrary code execution on affected systems. The remote nature of the attack vector means that unauthorized individuals with valid SAP credentials could exploit this weakness without requiring physical access to the target infrastructure. The impact extends beyond simple service disruption to potentially enabling full system compromise, making it a critical concern for enterprise security teams managing SAP deployments.
The exploitation of this vulnerability aligns with several ATT&CK techniques including privilege escalation and defense evasion, as attackers could leverage the buffer overflow to gain elevated system privileges and maintain persistent access to compromised SAP environments. Organizations utilizing SAP NetWeaver Dispatcher with affected kernel versions face substantial risk of unauthorized system access, data compromise, and operational disruption. The vulnerability's classification as a remote authenticated attack means that organizations must implement robust credential management practices and network segmentation to limit potential attack surfaces.
Mitigation strategies for CVE-2014-9595 should prioritize immediate patching of affected SAP Kernel versions through official SAP security updates and patches. Organizations should also implement network-based controls such as firewalls and access control lists to restrict access to SAP NetWeaver Dispatcher services, particularly limiting connections to trusted network segments. Additionally, monitoring systems should be configured to detect unusual spool system activity that might indicate exploitation attempts, while regular vulnerability assessments should be conducted to identify and remediate similar weaknesses in SAP environments. The remediation process should include comprehensive testing of patches in non-production environments before deployment to ensure system stability and prevent unexpected operational disruptions.