CVE-2019-16070 in Enigma NMS
Summary
by MITRE
A number of stored Cross-site Scripting (XSS) vulnerabilities were identified in NETSAS Enigma NMS 65.0.0 and prior that could allow a threat actor to inject malicious code directly into the application through web application form inputs.
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Analysis
by VulDB Data Team • 05/10/2025
The vulnerability identified as CVE-2019-16070 represents a critical stored cross-site scripting flaw within NETSAS Enigma NMS version 65.0.0 and earlier releases. This type of vulnerability falls under the CWE-79 category, which specifically addresses cross-site scripting conditions where malicious scripts are injected into web applications and subsequently executed in the context of other users' browsers. The NETSAS Enigma NMS is a network management system designed for monitoring and managing network infrastructure, making it a prime target for attackers seeking persistent access to network environments. The stored nature of this XSS vulnerability means that malicious payloads are permanently saved within the application's database or storage mechanisms, allowing the attack to persist across multiple user sessions and browser interactions.
The technical implementation of this vulnerability stems from insufficient input validation and output encoding within the web application's form processing mechanisms. Attackers can exploit this weakness by submitting malicious script code through various input fields within the application's user interface, which are then stored in the backend database without proper sanitization. When other users access the affected application or view content containing the stored malicious code, their browsers execute the injected scripts in the context of their authenticated sessions. This creates a significant risk for privilege escalation and session hijacking attacks, as the malicious code can potentially access sensitive user data, cookies, or session tokens. The vulnerability demonstrates poor secure coding practices and inadequate defense-in-depth mechanisms within the application's data handling processes.
The operational impact of this vulnerability extends beyond simple script execution, as it provides threat actors with a persistent foothold within network management environments. Network administrators who interact with the affected system become potential victims of these stored XSS attacks, which can lead to unauthorized access to critical network monitoring data, configuration changes, or even complete system compromise. The attack vector allows for sophisticated social engineering campaigns where attackers can craft malicious payloads that appear legitimate to users, making detection more difficult. This vulnerability directly maps to ATT&CK technique T1566.001 for credential access through spearphishing attachments and T1071.004 for application layer protocol usage. The persistence of stored XSS makes it particularly dangerous in enterprise environments where network management systems are accessed by multiple administrators with varying levels of privileges.
Mitigation strategies for CVE-2019-16070 should prioritize immediate patching of the affected NETSAS Enigma NMS versions to the latest available releases that contain proper input validation and output encoding mechanisms. Organizations should implement comprehensive input sanitization measures that filter and validate all user-supplied data before storage, utilizing parameterized queries and proper HTML encoding techniques. Network segmentation and access controls should be enhanced to limit exposure of the vulnerable application to untrusted users. Security monitoring should include detection of anomalous script injection patterns within application logs and user activity monitoring. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other network management systems. Additionally, user education regarding phishing awareness and suspicious link identification remains crucial in preventing initial compromise through social engineering vectors that could lead to exploitation of such stored XSS vulnerabilities. The remediation process should also involve thorough code reviews and implementation of automated security scanning tools to prevent similar issues in future development cycles.