CVE-2014-0338 in XTM
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in the firewall policy management pages in WatchGuard Fireware XTM before 11.8.3 allow remote attackers to inject arbitrary web script or HTML via the pol_name parameter.
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Analysis
by VulDB Data Team • 05/08/2026
The CVE-2014-0338 vulnerability represents a critical cross-site scripting flaw in WatchGuard Fireware XTM appliances that affects versions prior to 11.8.3. This vulnerability specifically targets the firewall policy management interface, which serves as a crucial administrative component for network security configuration. The flaw manifests in the pol_name parameter handling within the firewall policy management pages, creating a pathway for remote attackers to execute malicious web scripts or HTML code within the context of authenticated user sessions. The vulnerability stems from inadequate input validation and sanitization mechanisms within the web application layer of the firewall management interface.
The technical exploitation of this vulnerability occurs through the manipulation of the pol_name parameter, which is used to define policy names within the firewall configuration system. When an attacker crafts malicious input containing script tags or HTML code and submits it through this parameter, the vulnerable application fails to properly sanitize the input before rendering it in the web interface. This allows the injected code to execute in the browser of any user who views the affected policy management page, potentially leading to session hijacking, credential theft, or further exploitation of the administrative interface. The vulnerability is classified as a persistent XSS flaw since the malicious content can be stored within the application and executed against multiple users over time. This weakness aligns with CWE-79 which specifically addresses cross-site scripting vulnerabilities, and represents a classic example of insufficient input sanitization in web applications.
The operational impact of CVE-2014-0338 extends beyond simple script injection, as it provides attackers with a potential foothold for more sophisticated attacks against the network infrastructure. An attacker who successfully exploits this vulnerability can gain unauthorized access to the firewall management interface, potentially modifying security policies, creating backdoors, or accessing sensitive configuration data. The attack surface is particularly concerning because firewall management interfaces typically require elevated privileges and contain critical network security information. This vulnerability also aligns with ATT&CK technique T1059.007 for scripting and T1566.001 for credential harvesting, as the XSS can be leveraged to steal session cookies or capture user credentials. Organizations using affected WatchGuard appliances face significant risk of unauthorized access to their network security controls, potentially leading to complete network compromise.
Mitigation strategies for CVE-2014-0338 primarily involve immediate patching of WatchGuard Fireware XTM appliances to version 11.8.3 or later, which contains the necessary input validation fixes. Network administrators should also implement additional security measures including web application firewalls, input validation at multiple layers, and regular security assessments of administrative interfaces. The vulnerability highlights the importance of proper input sanitization and output encoding in web applications, particularly those handling administrative functions. Organizations should also consider implementing network segmentation to limit access to firewall management interfaces and establish strict access controls. Security monitoring should include detection of suspicious parameter values in web application logs, and regular vulnerability scanning should be conducted to identify similar issues in other network security appliances. This vulnerability serves as a reminder of the critical importance of maintaining up-to-date security patches and implementing defense-in-depth strategies for network security infrastructure components.