CVE-2014-2114 in Emergency Responder
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in UserServlet in Cisco Emergency Responder (ER) 8.6 and earlier allows remote attackers to inject arbitrary web script or HTML via an unspecified parameter, aka Bug ID CSCun24384.
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Analysis
by VulDB Data Team • 05/09/2026
The vulnerability identified as CVE-2014-2114 represents a critical cross-site scripting flaw within Cisco Emergency Responder version 8.6 and earlier systems. This vulnerability specifically affects the UserServlet component of the emergency responder platform, which serves as a core interface for user management and authentication processes. The flaw resides in how the system handles input parameters within the UserServlet, creating an avenue for malicious actors to execute arbitrary web scripts or HTML code within the context of authenticated user sessions. The vulnerability is particularly concerning as it enables remote code execution without requiring authentication, making it accessible to attackers from any location with network connectivity to the affected system.
The technical implementation of this XSS vulnerability stems from insufficient input validation and output encoding mechanisms within the UserServlet's parameter handling routines. When the servlet processes user-supplied data through an unspecified parameter, it fails to properly sanitize or escape special characters that could be interpreted as HTML or JavaScript commands. This allows attackers to inject malicious payloads that execute in the browser context of legitimate users who interact with the vulnerable application. The vulnerability operates at the application layer and specifically targets web-based interfaces, making it particularly dangerous in environments where emergency responder systems handle sensitive operational data and user credentials. The flaw directly maps to CWE-79, which defines Cross-Site Scripting vulnerabilities as a result of insufficient input validation or output encoding.
The operational impact of CVE-2014-2114 extends beyond simple script injection, as it can lead to complete session hijacking, data exfiltration, and unauthorized access to emergency responder functionalities. An attacker could potentially steal user authentication tokens, access sensitive emergency response data, or manipulate user permissions within the system. The vulnerability's remote nature means that attackers can exploit it from outside the corporate network, making it particularly dangerous for organizations that deploy emergency responder systems in distributed or cloud environments. In critical infrastructure scenarios, this vulnerability could compromise emergency communication systems during actual emergency situations, potentially endangering lives and operational effectiveness. The attack surface is further expanded as the vulnerability affects all users of the affected Cisco Emergency Responder versions, regardless of their role within the system.
Mitigation strategies for CVE-2014-2114 should prioritize immediate remediation through official Cisco security patches and updates. Organizations must implement comprehensive input validation and output encoding mechanisms to prevent similar vulnerabilities from occurring in other components of their emergency responder infrastructure. Network segmentation and web application firewalls can provide additional protection layers while permanent fixes are implemented. The vulnerability demonstrates the importance of following secure coding practices and implementing proper input sanitization techniques as outlined in the OWASP Top Ten security guidelines. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other application components. Organizations should also consider implementing automated monitoring systems to detect potential exploitation attempts and maintain detailed audit logs to track any suspicious activities related to the UserServlet component. The vulnerability serves as a reminder of the critical need for maintaining up-to-date security patches and implementing robust security controls in mission-critical emergency response systems.