CVE-2019-7425 in ManageEngine Netflow Analyzer
Summary
by MITRE
XSS exists in Zoho ManageEngine Netflow Analyzer Professional v7.0.0.2 in the Administration zone "/netflow/jspui/linkdownalertConfig.jsp" file in the task parameter.
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Analysis
by VulDB Data Team • 08/04/2023
The vulnerability identified as CVE-2019-7425 represents a cross-site scripting flaw within Zoho ManageEngine Netflow Analyzer Professional version 7.0.0.2 that specifically affects the administrative interface. This issue resides in the linkdownalertConfig.jsp component which processes user input through the task parameter, creating an avenue for malicious actors to inject arbitrary script code into the application's response. The vulnerability occurs within the administration zone of the web application, making it particularly concerning as it targets privileged users who have access to sensitive network monitoring configurations.
The technical implementation of this vulnerability stems from inadequate input validation and output encoding practices within the Netflow Analyzer application. When the task parameter is processed in the linkdownalertConfig.jsp file, the application fails to properly sanitize or escape user-supplied data before incorporating it into the HTTP response. This allows attackers to submit malicious payloads that are executed in the context of authenticated users' browsers, potentially enabling session hijacking, data exfiltration, or further exploitation of the compromised administrative interface. The vulnerability follows the CWE-79 pattern of cross-site scripting, specifically categorized under reflected XSS due to the parameter-based input mechanism.
The operational impact of this vulnerability extends beyond simple script execution as it provides attackers with a potential foothold for more sophisticated attacks within the network monitoring infrastructure. Since the affected component operates within the administration zone, successful exploitation could allow threat actors to modify network alert configurations, access sensitive flow data, or manipulate monitoring settings that could go undetected. This represents a significant risk for organizations relying on Netflow Analyzer for network security monitoring, as the administrative interface typically contains critical configuration data and access controls. The vulnerability aligns with ATT&CK technique T1059.007 for command and scripting interpreter and could enable lateral movement within the network monitoring ecosystem.
Organizations should implement immediate mitigations including input validation on the task parameter, proper output encoding of all user-supplied data, and application-level security headers to prevent script execution. The most effective immediate solution involves implementing proper parameter sanitization within the linkdownalertConfig.jsp file to ensure all user input is validated against a strict whitelist of acceptable values. Additionally, organizations should consider implementing web application firewalls to detect and block malicious payloads targeting this specific parameter. Regular security updates and patch management procedures should be enforced, as this vulnerability was addressed in subsequent versions of the ManageEngine suite. Network segmentation and principle of least privilege should be applied to limit the potential impact of successful exploitation, while monitoring for anomalous administrative activities can help detect unauthorized access attempts.