CVE-2019-7326 in ZoneMinder
Summary
by MITRE
Self - Stored Cross Site Scripting (XSS) exists in ZoneMinder through 1.32.3, allowing an attacker to execute HTML or JavaScript code via a vulnerable 'Host' parameter value in the view console (console.php) because proper filtration is omitted. This relates to the index.php?view=monitor Host Name field.
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Analysis
by VulDB Data Team • 07/04/2023
The vulnerability CVE-2019-7326 represents a self-stored cross site scripting flaw in ZoneMinder version 1.32.3 and earlier, constituting a critical security weakness that enables attackers to inject malicious code into the system. This vulnerability specifically affects the web interface console where user input is not properly sanitized before being stored and subsequently displayed. The issue manifests through the 'Host' parameter value in the view console component, particularly within the console.php file, where the system fails to implement adequate input validation and output encoding mechanisms. The vulnerability exists in the index.php?view=monitor Host Name field, which serves as the primary attack vector for executing malicious scripts.
The technical flaw stems from insufficient data sanitization practices within the ZoneMinder application's input handling mechanisms. When users enter host names or other identifying information through the monitoring interface, the system does not properly filter or escape special characters that could be interpreted as executable code by web browsers. This omission creates a persistent XSS vulnerability where malicious payloads can be stored in the application's database and executed whenever the affected page is loaded. The vulnerability operates under CWE-79 which specifically addresses cross-site scripting flaws due to improper neutralization of input during web page generation, making it a direct violation of secure coding practices.
The operational impact of this vulnerability is severe as it allows attackers to execute arbitrary JavaScript code within the context of the victim's browser session. An attacker could leverage this weakness to steal session cookies, redirect users to malicious sites, modify the application interface, or perform actions on behalf of authenticated users. Since the vulnerability is self-stored, the malicious code persists in the system even after the initial injection, making it particularly dangerous for long-term exploitation. The attack requires minimal privileges as it targets the web interface rather than requiring direct system access, and can be executed through simple HTTP requests containing malicious payloads.
Security professionals should consider this vulnerability in relation to the ATT&CK framework's T1059.007 technique for command and script injection, as the stored XSS allows for persistent code execution within user browsers. The vulnerability also aligns with ATT&CK's T1531 technique for account access removal, as successful exploitation could lead to unauthorized access to monitoring systems and potentially compromise the entire surveillance infrastructure. Organizations using ZoneMinder should immediately implement input validation measures, including proper HTML escaping and sanitization of all user-supplied data before storage. The recommended mitigation strategy involves implementing Content Security Policy headers, employing proper output encoding, and upgrading to patched versions of ZoneMinder where the vulnerability has been addressed through proper input validation and sanitization mechanisms. Additionally, regular security assessments should be conducted to identify similar vulnerabilities in other web applications that may be susceptible to similar injection attacks.