CVE-2019-19293 in SiNVR 3 Central Control Server
Summary
by MITRE
A vulnerability has been identified in SiNVR 3 Central Control Server (CCS) (all versions), SiNVR 3 Video Server (all versions). The web interface of the SiNVR 3 Central Control Server (CCS) contains a reflected Cross-site Scripting (XSS) vulnerability that could allow an unauthenticated remote attacker to steal sensitive data or execute administrative actions on behalf of a legitimate administrator of the CCS web interface.
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Analysis
by VulDB Data Team • 04/11/2024
The vulnerability CVE-2019-19293 represents a critical reflected cross-site scripting flaw in the SiNVR 3 security ecosystem, specifically affecting both the Central Control Server and Video Server components across all versions. This vulnerability exists within the web interface of the Central Control Server, creating a significant attack surface that exposes organizations to potential security breaches. The SiNVR 3 platform is designed for surveillance and security management, making it a prime target for attackers seeking unauthorized access to sensitive video data and system controls. The flaw stems from improper input validation and output encoding within the web application's response handling mechanisms, allowing malicious actors to inject malicious scripts through crafted HTTP requests.
The technical implementation of this reflected XSS vulnerability occurs when user-supplied input is directly reflected back in the web application's response without adequate sanitization or encoding. Attackers can construct malicious URLs containing script payloads that, when clicked by an administrator or legitimate user, execute within the victim's browser context. The vulnerability is classified as a reflected XSS due to the malicious script being reflected from the web server back to the user's browser through the application's response to a crafted request. This type of vulnerability falls under CWE-79 which specifically addresses Cross-site Scripting flaws in web applications, and it aligns with ATT&CK technique T1059.007 for Scripting through web-based interfaces. The flaw allows for session hijacking, credential theft, and potential privilege escalation within the surveillance management system.
The operational impact of this vulnerability extends beyond simple data theft, as it enables attackers to perform administrative actions on behalf of legitimate users. An unauthenticated remote attacker can leverage this vulnerability to execute commands with administrative privileges, potentially gaining complete control over the surveillance infrastructure. This includes access to live video feeds, configuration changes, user management, and system settings that could compromise the entire security ecosystem. The implications are particularly severe for organizations relying on SiNVR 3 for critical security operations, as attackers could manipulate surveillance footage, disable security features, or create backdoors for persistent access. The vulnerability's remote exploitability means attackers do not require physical access to the network, making it an attractive target for cybercriminals seeking to compromise security infrastructure.
Organizations should implement immediate mitigations including input validation and output encoding for all user-supplied data within the web interface, deployment of web application firewalls to detect and block malicious payloads, and regular security updates to address the identified vulnerability. The implementation of Content Security Policy headers can provide additional protection against XSS attacks by restricting script execution within the browser context. Network segmentation and access controls should be enforced to limit exposure of the web interface to unauthorized users. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities in the broader security infrastructure. System administrators should also implement monitoring solutions to detect suspicious activities that may indicate exploitation attempts, particularly around authentication and administrative function calls within the SiNVR 3 platform.