CVE-2017-9366 in epesi
Summary
by MITRE
Telaxus EPESI 1.8.2 and earlier has a Stored Cross-site Scripting (XSS) vulnerability in modules/Base/Dashboard/Dashboard_0.php, which allows remote attackers to inject arbitrary web script or HTML via a crafted tab_name parameter.
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Analysis
by VulDB Data Team • 12/07/2022
The vulnerability identified as CVE-2017-9366 represents a critical stored cross-site scripting flaw within Telaxus EPESI version 1.8.2 and earlier systems. This vulnerability exists within the modules/Base/Dashboard/Dashboard_0.php component of the application, making it a significant concern for organizations relying on this enterprise portal platform. The flaw enables remote attackers to execute malicious web scripts or HTML code within the context of other users' browsers, potentially leading to unauthorized access to sensitive data and system compromise.
The technical implementation of this vulnerability stems from inadequate input validation and output encoding within the dashboard module. When the application processes the tab_name parameter, it fails to properly sanitize user-supplied data before rendering it in the web interface. This allows attackers to inject malicious payloads that persist within the application's database or configuration files, making the vulnerability stored rather than reflected. The attack vector requires minimal user interaction as the malicious code executes automatically when affected users access the dashboard, making it particularly dangerous in enterprise environments where multiple users regularly interact with the system.
From an operational perspective, this vulnerability poses substantial risks to organizations using EPESI as their primary business portal. The stored nature of the XSS attack means that once the malicious payload is injected, it will affect all users who view the compromised dashboard, potentially leading to credential theft, session hijacking, or data exfiltration. Attackers could leverage this vulnerability to escalate privileges, access confidential business information, or establish persistent backdoors within the organization's network infrastructure. The impact extends beyond immediate data compromise to include potential regulatory compliance violations and reputational damage.
Security professionals should consider this vulnerability in the context of CWE-79, which specifically addresses cross-site scripting flaws in software applications. The ATT&CK framework categorizes this as a web application attack technique under the T1059.007 sub-technique for Scripting, where adversaries use malicious scripts to compromise systems. Organizations should implement immediate mitigations including input validation, output encoding, and proper parameter sanitization within the affected module. The most effective remediation involves updating to EPESI version 1.8.3 or later, which includes proper input validation mechanisms and enhanced security controls. Additionally, network segmentation and web application firewalls can provide additional layers of protection while awaiting the official security patch deployment across all affected systems.