CVE-2008-3881 in ZoneMinder
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in ZoneMinder 1.23.3 and earlier allow remote attackers to inject arbitrary web script or HTML via unspecified "zm_html_view_*.php" files.
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Analysis
by VulDB Data Team • 10/08/2018
The vulnerability identified as CVE-2008-3881 represents a critical security flaw in ZoneMinder version 1.23.3 and earlier, affecting multiple cross-site scripting vulnerabilities within the software's web interface. ZoneMinder is an open-source video surveillance system that allows users to monitor security cameras and manage video feeds through a web-based interface. This particular vulnerability resides in the unspecified zm_html_view_*.php files, which are integral components of the system's web application layer responsible for rendering HTML content to users. The flaw enables remote attackers to inject arbitrary web scripts or HTML code, potentially compromising the security of users interacting with the system through web browsers.
The technical nature of this vulnerability stems from inadequate input validation and output encoding within the affected PHP files. When users access certain web pages within the ZoneMinder interface, the application fails to properly sanitize user-supplied input before incorporating it into dynamically generated HTML content. This deficiency creates an environment where malicious actors can craft specially crafted payloads that, when executed, run within the context of other users' browsers. The vulnerability manifests as a classic cross-site scripting flaw that can be categorized under CWE-79, which specifically addresses "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')". The attack vector operates entirely through web-based interactions, requiring no local system access or elevated privileges from the attacker's perspective.
The operational impact of this vulnerability extends beyond simple script injection, potentially enabling sophisticated attack scenarios that can compromise user sessions, steal sensitive information, or manipulate the web interface. Remote attackers could exploit this vulnerability to execute malicious scripts that might steal authentication cookies, redirect users to phishing sites, or modify the displayed content to deceive users. The implications are particularly severe in security environments where ZoneMinder is deployed, as it could allow unauthorized individuals to gain unauthorized access to surveillance footage, manipulate system settings, or disrupt security monitoring operations. The vulnerability affects the confidentiality, integrity, and availability of the surveillance system, potentially compromising the very purpose for which it was designed.
Security practitioners should implement multiple layers of mitigation to address this vulnerability effectively. The primary and most critical remediation involves upgrading to a patched version of ZoneMinder that resolves the input validation issues within the affected PHP files. Additionally, implementing proper input sanitization techniques and output encoding mechanisms can provide defense-in-depth protection. Organizations should consider implementing content security policies to prevent unauthorized script execution, and web application firewalls can provide additional monitoring and blocking capabilities. The vulnerability aligns with ATT&CK technique T1566, which covers "Phishing for Information", as attackers could use the XSS vulnerability to harvest user credentials or sensitive information from the surveillance system. Regular security assessments and penetration testing should be conducted to ensure that similar vulnerabilities are not present in other components of the surveillance infrastructure, maintaining overall security posture against evolving threats.