CVE-2015-2098 in eDVR Manager
Summary
by MITRE • 07/23/2021
Multiple stack-based buffer overflows in WebGate eDVR Manager allow remote attackers to execute arbitrary code via unspecified vectors to the (1) Connect, (2) ConnectEx, or (3) ConnectEx2 function in the WESPEvent.WESPEventCtrl.1 control; (4) AudioOnlySiteChannel function in the WESPPlayback.WESPPlaybackCtrl.1 control; (5) Connect or (6) ConnectEx function in the WESPPTZ.WESPPTZCtrl.1 control; (7) SiteChannel property in the WESPPlayback.WESPPlaybackCtrl.1 control; (8) SiteName property in the WESPPlayback.WESPPlaybackCtrl.1 control; or (9) OpenDVrSSite function in the WESPPTZ.WESPPTZCtrl.1 control.
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Analysis
by VulDB Data Team • 07/03/2025
The vulnerability described in CVE-2015-2098 represents a critical stack-based buffer overflow issue affecting WebGate eDVR Manager software components. This vulnerability exists within multiple ActiveX controls that are part of the WebGate eDVR ecosystem, specifically targeting controls such as WESPEventCtrl.1, WESPPlaybackCtrl.1, and WESPPTZCtrl.1. These controls are designed to facilitate communication with digital video recording systems and provide various functionalities including connection management, playback controls, and PTZ (pan-tilt-zoom) camera control. The flaw manifests in nine distinct functions across these controls, creating multiple attack vectors that could potentially be exploited by remote adversaries.
The technical nature of this vulnerability stems from improper input validation within the affected ActiveX controls. When these controls process data from external sources through functions like Connect, ConnectEx, AudioOnlySiteChannel, SiteChannel, SiteName, and OpenDVrSSite, they fail to properly bounds-check input parameters before copying them into fixed-size stack buffers. This allows attackers to overflow the allocated buffer space and overwrite adjacent memory locations, potentially including return addresses and control data. The CWE-121 classification applies directly to this vulnerability, as it represents a classic stack-based buffer overflow condition where insufficient bounds checking permits memory corruption.
The operational impact of CVE-2015-2098 is severe and far-reaching for organizations utilizing WebGate eDVR systems. Remote code execution capabilities mean that attackers could potentially gain complete control over affected systems without requiring physical access or local user credentials. This vulnerability affects video surveillance infrastructure that is often deployed in sensitive environments including corporate facilities, government installations, and critical infrastructure sites. The attack surface is particularly concerning because these ActiveX controls are typically installed on client systems within network environments where users may browse to untrusted websites or receive malicious content through email attachments or web-based attacks. The vulnerability could enable attackers to install backdoors, exfiltrate surveillance data, or disrupt video monitoring operations that are critical for security operations.
Mitigation strategies for this vulnerability should focus on immediate remediation through official patches provided by WebGate, as well as network-based protections. Organizations should implement strict browser security policies that disable ActiveX controls or restrict their execution to trusted domains only. The ATT&CK framework's T1190 technique for Exploit Public-Facing Application should be considered when developing defensive measures, as this vulnerability targets publicly accessible application components. Network segmentation and firewall rules should be configured to limit access to the affected ActiveX controls, while regular security assessments should verify that all systems have been properly updated. Additionally, users should be educated about the risks of visiting untrusted websites and the importance of keeping software components updated to prevent exploitation of such vulnerabilities.