CVE-2015-3620 in FortiOS
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the advanced dataset reports page in Fortinet FortiAnalyzer 5.0.0 through 5.0.10 and 5.2.0 through 5.2.1 and FortiManager 5.0.3 through 5.0.10 and 5.2.0 through 5.2.1 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 06/19/2024
The cross-site scripting vulnerability identified as CVE-2015-3620 affects Fortinet FortiAnalyzer and FortiManager products across multiple versions, representing a critical security flaw that undermines the integrity of web-based administrative interfaces. This vulnerability resides within the advanced dataset reports page functionality, which serves as a crucial component for security analysts and administrators to review network traffic patterns, threat detections, and system performance metrics. The affected versions include FortiAnalyzer 5.0.0 through 5.0.10 and 5.2.0 through 5.2.1, alongside FortiManager 5.0.3 through 5.0.10 and 5.2.0 through 5.2.1, indicating a widespread impact across Fortinet's security management platforms. The vulnerability classification aligns with CWE-79, which specifically addresses cross-site scripting flaws in web applications, making it a fundamental weakness in input validation and output encoding mechanisms.
The technical exploitation of this vulnerability occurs through unspecified vectors that allow remote attackers to inject malicious web scripts or HTML content into the advanced dataset reports page. This injection typically happens when user-supplied data is not properly sanitized or encoded before being rendered in the web interface, creating an opportunity for attackers to execute arbitrary code within the context of the victim's browser session. The vulnerability's impact extends beyond simple script execution as it enables attackers to manipulate the web application's behavior, potentially leading to session hijacking, credential theft, or redirection to malicious sites. The unspecified nature of the attack vectors suggests that multiple input points within the reports page functionality may be susceptible to manipulation, including parameters passed through URL queries, form fields, or data imported into the reporting system.
The operational impact of CVE-2015-3620 is significant for organizations relying on FortiAnalyzer and FortiManager for security operations and network monitoring. Security administrators who access the advanced dataset reports page become potential victims of this attack, as their browser sessions could be compromised during routine monitoring activities. An attacker exploiting this vulnerability could gain access to sensitive network data, view confidential reports, manipulate security configurations, or establish persistent access to the management interface. The vulnerability's remote nature means that attackers do not require physical access to the network or administrative privileges to exploit it, making it particularly dangerous in environments where these devices are accessible from external networks or where administrative access is not adequately restricted.
Organizations should implement immediate mitigations including applying the latest security patches provided by Fortinet, which would address the underlying input validation issues in the reporting components. Network segmentation and access controls should be strengthened to limit exposure of these management interfaces to untrusted networks, while implementing proper web application firewalls can help detect and prevent malicious script injection attempts. The implementation of Content Security Policy headers and proper input sanitization mechanisms within the affected applications would provide additional layers of protection. Organizations should also conduct comprehensive security assessments of their Fortinet deployments to identify potential exploitation attempts and monitor network traffic for indicators of compromise related to this vulnerability. This vulnerability aligns with ATT&CK technique T1059.007, which covers scripting through web shells, and represents a critical weakness in application security that requires immediate attention to prevent potential compromise of security monitoring infrastructure.