CVE-2020-13628 in host-monitoring Widget
Summary
by MITRE
Cross-site scripting (XSS) vulnerability allows remote attackers to inject arbitrary web script or HTML via the widgetId parameter to host-monitoring/src/toolbar.php. This vulnerability is fixed in versions 1.6.4, 18.10.3, 19.04.3, and 19.0.1 of the Centreon host-monitoring widget; 1.6.4, 18.10.5, 19.04.3, 19.10.2 of the Centreon service-monitoring widget; and 1.0.3, 18.10.1, 19.04.1, 19.10.1 of the Centreon tactical-overview widget.
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Analysis
by VulDB Data Team • 05/28/2020
The CVE-2020-13628 vulnerability represents a critical cross-site scripting flaw within the Centreon monitoring platform's widget components, specifically affecting the host-monitoring toolbar functionality. This vulnerability exists in the handling of the widgetId parameter within the host-monitoring/src/toolbar.php file, creating an avenue for remote attackers to execute malicious scripts within the context of authenticated users' browsers. The flaw demonstrates characteristics consistent with CWE-79, which defines cross-site scripting vulnerabilities as weaknesses that allow attackers to inject malicious code into web applications. The vulnerability affects multiple Centreon monitoring widgets including host-monitoring, service-monitoring, and tactical-overview components, indicating a systemic issue within the platform's input validation mechanisms.
The technical implementation of this vulnerability stems from insufficient sanitization of user-supplied input parameters, particularly the widgetId parameter that is directly incorporated into the web application's output without proper encoding or validation. When an attacker crafts a malicious payload and submits it through the widgetId parameter, the application fails to properly escape or validate the input before rendering it in the browser context. This allows the injected script to execute with the privileges of the victim user, potentially leading to session hijacking, data theft, or further exploitation of the compromised system. The vulnerability operates at the application layer and requires no special privileges to exploit, making it particularly dangerous in environments where Centreon is used for critical infrastructure monitoring.
The operational impact of this vulnerability extends beyond simple script injection, as it can enable attackers to escalate privileges and access sensitive monitoring data. In a Centreon environment, where administrators often have elevated access to system monitoring information, successful exploitation could allow attackers to view, modify, or delete critical monitoring configurations. The attack surface is particularly concerning given that Centreon is widely deployed in enterprise environments for network and system monitoring, where the compromised monitoring interface could provide attackers with insights into the organization's infrastructure and potentially serve as a launch point for further attacks. The vulnerability also aligns with ATT&CK technique T1059.007, which covers command and scripting interpreter usage, as the injected scripts could potentially be used to execute additional malicious commands.
Organizations utilizing affected Centreon versions should immediately implement mitigations including updating to the patched versions specified in the CVE advisory, which include 1.6.4, 18.10.3, 19.04.3, and 19.0.1 for host-monitoring widgets, 1.6.4, 18.10.5, 19.04.3, 19.10.2 for service-monitoring widgets, and 1.0.3, 18.10.1, 19.04.1, 19.10.1 for tactical-overview widgets. Additionally, implementing proper input validation and output encoding mechanisms can serve as defensive measures while awaiting the official patches. Network segmentation and access controls should be reviewed to limit potential attack vectors, and regular security assessments should be conducted to identify similar vulnerabilities within the monitoring infrastructure. The remediation process should also include thorough testing of the patched versions to ensure that the security fixes do not introduce regressions in the monitoring functionality.