CVE-2019-20366 in Openfire
Summary
by MITRE
An XSS issue was discovered in Ignite Realtime Openfire 4.4.4 via isTrustStore to Manage Store Contents.
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Analysis
by VulDB Data Team • 03/20/2024
The vulnerability CVE-2019-20366 represents a cross-site scripting flaw within the Ignite Realtime Openfire 4.4.4 messaging platform that specifically affects the certificate trust store management functionality. This issue arises from insufficient input validation and output sanitization in the isTrustStore parameter handling within the Manage Store Contents component of the web administration interface. The vulnerability exists in the context of the Openfire server's web-based management console which allows administrators to configure and manage various security certificates and trust relationships. The flaw is particularly concerning as it targets the trust store management functionality that handles sensitive cryptographic certificates used for secure communications within the XMPP network infrastructure.
The technical implementation of this vulnerability stems from the application's failure to properly sanitize user-supplied input when processing the isTrustStore parameter. When administrators interact with the certificate management interface to configure trust stores, the application does not adequately validate or escape the input data before rendering it in the web response. This creates an environment where maliciously crafted input can be executed as script code within the context of a victim's browser session. The vulnerability follows the classic XSS pattern where untrusted data flows from the web application's input processing to the output rendering without proper sanitization, making it susceptible to client-side code injection attacks. According to CWE classification, this represents a CWE-79: Improper Neutralization of Input During Web Page Generation, which is a fundamental weakness in web application security architecture. The vulnerability specifically manifests when an attacker can manipulate the certificate management interface to inject malicious scripts that will execute in the browser of any user who views the affected trust store contents.
The operational impact of CVE-2019-20366 extends beyond simple script execution as it provides attackers with the capability to perform session hijacking, steal administrative credentials, and potentially gain full control over the Openfire server configuration. An attacker exploiting this vulnerability could inject malicious JavaScript that captures administrator login credentials, modifies certificate trust relationships to enable man-in-the-middle attacks, or redirects users to malicious domains. The vulnerability is particularly dangerous in enterprise environments where Openfire servers often manage critical communication infrastructure and where administrators have elevated privileges. The attack vector requires minimal user interaction since the vulnerability can be exploited through the web administration interface, making it accessible to attackers who have gained access to the management console or who can manipulate the trust store configuration process. This aligns with ATT&CK technique T1059.007 for Command and Scripting Interpreter: JavaScript, where adversaries leverage browser-based scripting to execute malicious payloads within the context of legitimate user sessions.
Mitigation strategies for CVE-2019-20366 should include immediate patching of the Openfire server to version 4.5.0 or later where the vulnerability has been addressed through proper input validation and output sanitization. Organizations should also implement network segmentation to limit access to the Openfire administration interface to trusted administrative networks only, and employ web application firewalls to monitor and filter malicious requests targeting the affected parameter. Additional defensive measures include disabling unnecessary administrative access, implementing multi-factor authentication for administrative accounts, and conducting regular security audits of web application interfaces. The vulnerability demonstrates the importance of input validation and output encoding in web applications, particularly for administrative interfaces that handle sensitive configuration data. Security teams should also consider implementing automated vulnerability scanning tools that can detect similar input validation flaws in other web applications and ensure that all user-supplied data is properly sanitized before being processed or rendered in web contexts. Organizations should review their incident response procedures to ensure rapid detection and remediation of such vulnerabilities, as the exploitation of administrative interfaces can lead to significant security breaches within enterprise communication infrastructures.