CVE-2015-2095 in eDVR Manager
Summary
by MITRE
Heap-based buffer overflow in the SetConnectInfo function in the WESPPTZ.WESPPTZCtrl.1 ActiveX control in WebGate eDVR Manager allows remote attackers to execute arbitrary code via crafted arguments.
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Analysis
by VulDB Data Team • 04/14/2018
The vulnerability identified as CVE-2015-2095 represents a critical heap-based buffer overflow flaw within the WebGate eDVR Manager software suite, specifically affecting the WESPPTZ.WESPPTZCtrl.1 ActiveX control. This vulnerability exists within the SetConnectInfo function, which serves as a critical interface for establishing connections within the video surveillance management system. The ActiveX control is designed to facilitate communication between web-based interfaces and the underlying video recording infrastructure, making it a prime target for exploitation by malicious actors seeking to compromise surveillance systems.
The technical nature of this vulnerability stems from inadequate input validation within the SetConnectInfo function, which fails to properly bounds-check user-supplied arguments before processing them into heap-allocated memory buffers. When an attacker provides maliciously crafted parameters to this function, the excessive input data overflows the allocated buffer space, potentially overwriting adjacent memory locations including return addresses, function pointers, or other critical control data structures. This memory corruption enables attackers to manipulate the program execution flow and ultimately execute arbitrary code with the privileges of the affected application process. The heap-based nature of the overflow indicates that the vulnerable memory allocation occurs dynamically during runtime, making exploitation more complex but potentially more reliable than stack-based counterparts.
The operational impact of this vulnerability extends beyond simple code execution, as it directly threatens the integrity and security of video surveillance systems that rely on the WebGate eDVR Manager for their operation. Attackers could leverage this vulnerability to gain unauthorized access to surveillance footage, manipulate recording settings, or even take complete control of the affected system. The remote exploitation capability means that attackers do not require physical access to the target network, making the vulnerability particularly dangerous for enterprise security environments where such systems are often exposed to external networks. This vulnerability affects organizations using the WebGate eDVR Manager software, potentially compromising critical infrastructure security and surveillance operations across various sectors including financial institutions, government facilities, and industrial sites.
Security professionals should consider this vulnerability in relation to CWE-121, which addresses stack-based buffer overflow conditions, and CWE-122, which covers heap-based buffer overflow conditions, as the flaw manifests through improper memory handling practices. The attack surface aligns with ATT&CK technique T1059.007 for command and scripting interpreter, specifically through the use of ActiveX controls to execute malicious code. Organizations should implement immediate mitigations including disabling ActiveX controls in web browsers, applying vendor-provided patches, and conducting comprehensive network segmentation to isolate affected systems. Additionally, monitoring for suspicious ActiveX control usage and implementing application whitelisting policies can help prevent exploitation attempts. The vulnerability underscores the critical importance of proper input validation and memory management practices in software development, particularly for components that handle untrusted data from remote sources, and highlights the ongoing risks associated with legacy ActiveX technologies in modern security environments.