CVE-2019-7004 in IP Office Application Server
Summary
by MITRE
A Cross-Site Scripting (XSS) vulnerability in the WebUI component of IP Office Application Server could allow unauthorized code execution and potentially disclose sensitive information. All product versions 11.x are affected. Product versions prior to 11.0, including unsupported versions, were not evaluated.
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Analysis
by VulDB Data Team • 08/11/2024
The vulnerability identified as CVE-2019-7004 represents a critical cross-site scripting flaw within the WebUI component of the IP Office Application Server platform. This vulnerability specifically targets the web-based user interface functionality that administrators and users employ to interact with the application server's management capabilities. The affected product versions span the entire 11.x release line, indicating a widespread impact across multiple iterations of the software. The vulnerability's classification as a persistent XSS flaw means that malicious actors can inject malicious scripts into the application's web interface, which then execute in the context of other users' browsers. This type of vulnerability falls under the Common Weakness Enumeration category CWE-79, which specifically addresses cross-site scripting vulnerabilities that occur when untrusted data is sent to a web browser without proper validation or sanitization. The security implications extend beyond simple script execution to potentially enable unauthorized access to sensitive data and system resources.
The technical exploitation of this vulnerability occurs through the WebUI component's insufficient input validation mechanisms when processing user-supplied data. Attackers can craft malicious payloads that are stored within the application's data handling processes and subsequently executed when legitimate users access the affected web interface. The vulnerability's presence in the WebUI component means that any input field, parameter, or data submission point within the web application can serve as an attack vector. This flaw essentially allows threat actors to bypass standard authentication mechanisms and execute arbitrary code within the context of the victim's browser session. The potential for unauthorized code execution stems from the fact that the application fails to properly sanitize or escape user input before rendering it back to the browser. This type of vulnerability is particularly dangerous in enterprise environments where the IP Office Application Server serves as a critical communication infrastructure component, as it could enable attackers to escalate privileges, access sensitive system information, or even compromise the entire application server.
The operational impact of CVE-2019-7004 extends significantly beyond traditional web application security concerns into enterprise network security and business continuity domains. Organizations utilizing affected IP Office Application Server versions face substantial risks including unauthorized access to communication systems, potential data exfiltration, and disruption of critical business operations. The vulnerability's ability to facilitate unauthorized code execution means that attackers could potentially establish persistent access to the application server, creating a foothold for further network infiltration. This scenario aligns with ATT&CK technique T1059.007, which describes the use of scripting languages for code execution, and T1566, which covers social engineering attacks that can leverage such vulnerabilities to gain initial access. The potential for sensitive information disclosure represents a serious concern for organizations handling confidential communications data, as the vulnerability could enable attackers to access voice mail systems, call logs, user credentials, and other sensitive operational information. Additionally, the exploitation of this vulnerability could lead to man-in-the-middle attacks, session hijacking, and other advanced persistent threat scenarios that would compromise the integrity and confidentiality of the entire communication infrastructure.
Organizations must implement comprehensive mitigation strategies to address this vulnerability effectively, beginning with immediate patch deployment for all affected IP Office Application Server versions. The recommended remediation approach involves applying the vendor-provided security updates that specifically address the XSS vulnerability in the WebUI component. Security teams should also implement network segmentation and access controls to limit exposure of the affected application server to untrusted networks. Additional defensive measures include implementing web application firewalls to monitor and filter malicious traffic targeting the WebUI component, conducting thorough input validation and output encoding across all user-facing application interfaces, and establishing robust monitoring procedures to detect anomalous access patterns or suspicious script execution attempts. The mitigation strategy should also incorporate regular security assessments and penetration testing to identify potential exploitation vectors and ensure that the implemented controls remain effective against evolving attack techniques. Organizations should consider implementing the principle of least privilege for application server access, ensuring that only authorized personnel have administrative access to the WebUI component. Furthermore, incident response procedures must be updated to include specific protocols for detecting and responding to potential exploitation of this vulnerability, including detailed forensic analysis capabilities to trace attack vectors and assess potential system compromise.