CVE-2006-3603 in FlexWATCH Network Camera
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in index.php in FlexWATCH Network Camera 3.0 and earlier allows remote attackers to inject arbitrary web script or HTML via the URL.
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Analysis
by VulDB Data Team • 10/25/2025
The CVE-2006-3603 vulnerability represents a critical cross-site scripting flaw in the FlexWATCH Network Camera software version 3.0 and earlier, specifically affecting the index.php component. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is one of the most prevalent and dangerous web application security flaws. The vulnerability exists due to insufficient input validation and output encoding mechanisms within the camera's web interface, allowing malicious actors to inject arbitrary HTML or JavaScript code through manipulated URL parameters.
The technical implementation of this vulnerability stems from the application's failure to properly sanitize user-supplied input that is subsequently reflected in the web page output without adequate encoding. When a remote attacker crafts a malicious URL containing script code and directs a victim to access this crafted link, the camera's index.php script processes the input without proper validation, leading to the execution of malicious scripts in the victim's browser context. This flaw enables attackers to perform various malicious activities including session hijacking, credential theft, and defacement of the camera's web interface.
The operational impact of this vulnerability is significant as it allows remote attackers to compromise the security of network camera users without requiring any local access or authentication. Attackers can leverage this vulnerability to steal session cookies, redirect users to malicious websites, or inject phishing content that can be used to capture user credentials. The vulnerability affects the integrity and confidentiality of the network camera's web interface, potentially allowing unauthorized access to camera settings and video feeds. This represents a serious threat to network security as network cameras are often deployed in critical infrastructure environments where unauthorized access could lead to physical security breaches.
Security professionals should implement multiple layers of defense to mitigate this vulnerability. The primary remediation involves applying the vendor-provided security patches or upgrading to versions of FlexWATCH Network Camera that have addressed this vulnerability. Additionally, network administrators should implement proper input validation mechanisms, output encoding, and content security policies to prevent similar vulnerabilities. The vulnerability aligns with ATT&CK technique T1566 which covers social engineering through malicious links, and T1071 which addresses application layer protocols. Organizations should also consider implementing web application firewalls and regular security assessments to identify and remediate similar cross-site scripting vulnerabilities in their network infrastructure devices.