CVE-2019-25436 in DeviceViewer
Summary
by MITRE • 02/21/2026
Sricam DeviceViewer 3.12.0.1 contains a password change security bypass vulnerability that allows authenticated users to change passwords without proper validation of the old password field. Attackers can inject a large payload into the old password parameter during the change password process to bypass validation and set an arbitrary new password.
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Analysis
by VulDB Data Team • 02/27/2026
The vulnerability identified as CVE-2019-25436 resides within Sricam DeviceViewer version 3.12.0.1, a video surveillance management software that allows users to configure and monitor security camera systems. This particular flaw represents a critical security bypass issue that undermines the integrity of the authentication mechanism by allowing unauthorized password modifications. The vulnerability specifically affects the password change functionality within the application's user management system, creating a pathway for malicious actors to circumvent normal security controls. The issue stems from inadequate input validation and improper authentication flow handling during password modification processes. According to CWE-284, this vulnerability aligns with improper access control conditions where the system fails to properly validate user credentials before permitting sensitive operations. The flaw enables attackers to exploit the password change mechanism by manipulating the old password parameter, effectively bypassing the requirement to provide the correct current password. This represents a significant weakness in the application's security architecture and violates fundamental principles of secure authentication design.
The technical exploitation of CVE-2019-25436 occurs through a carefully crafted injection attack against the password change endpoint. Attackers can submit an oversized payload through the old password parameter field, which the application fails to properly validate or sanitize. This malformed input allows the system to accept the password change request without verifying that the old password provided matches the current user's actual password. The vulnerability manifests as a buffer overflow or input truncation issue where the application's validation logic cannot properly handle excessive data input, leading to the bypass of authentication checks. This type of vulnerability falls under the ATT&CK framework's privilege escalation category, specifically targeting credential access techniques. The security bypass enables attackers to assume control of user accounts without proper authorization, potentially leading to complete system compromise. The application's failure to implement proper parameter validation and input sanitization creates an exploitable condition that can be leveraged by both authenticated and potentially unauthenticated attackers depending on the system's configuration.
The operational impact of this vulnerability extends beyond simple credential theft to encompass broader security implications for organizations relying on Sricam DeviceViewer for their surveillance infrastructure. Once exploited, attackers can gain persistent access to video surveillance systems, potentially enabling them to monitor sensitive areas, alter system configurations, or disable security features. The vulnerability's presence in a security application creates a particularly concerning scenario where the attacker can compromise the very system designed to protect against unauthorized access. Organizations may experience significant operational disruption as attackers could manipulate camera settings, delete recordings, or create backdoor access points. The flaw also creates potential for data exfiltration through unauthorized access to surveillance footage, which may contain sensitive information about personnel, assets, or operational activities. From a compliance perspective, this vulnerability could result in violations of security standards such as iso 27001, nist cybersecurity framework, and various industry-specific regulations requiring robust access control mechanisms. The vulnerability's impact is amplified in environments where surveillance systems are integrated with other security infrastructure, potentially creating cascading effects throughout the organization's security posture.
Mitigation strategies for CVE-2019-25436 should prioritize immediate remediation through official software updates provided by Sricam, as the vulnerability represents a known flaw requiring vendor-provided patches. Organizations should implement network segmentation to limit access to the DeviceViewer application and restrict administrative privileges to only essential personnel. The implementation of strong input validation and parameter sanitization measures can help prevent similar vulnerabilities from manifesting in other applications. Security teams should conduct thorough penetration testing and vulnerability assessments to identify potential similar flaws in related systems. Additional defensive measures include implementing account lockout policies, monitoring for unusual password change activities, and deploying intrusion detection systems to identify exploitation attempts. Organizations should also consider implementing multi-factor authentication for administrative accounts and establishing strict access control policies for surveillance systems. From a compliance standpoint, regular security audits should verify that proper authentication mechanisms are in place and functioning correctly. The vulnerability highlights the importance of secure coding practices and input validation, emphasizing the need for proper software development lifecycle security controls to prevent similar issues in future applications. Regular security awareness training for administrators can also help prevent social engineering attacks that might exploit this vulnerability.