CVE-2024-3323 in JasperReports Server
Summary
by MITRE • 04/17/2024
Cross Site Scripting in
UI Request/Response Validation
in TIBCO JasperReports Server 8.0.4 and 8.2.0 allows allows for the injection of malicious executable scripts into the code of a trusted application that may lead to stealing the user's active session cookie via sending malicious link, enticing the user to interact.
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Analysis
by VulDB Data Team • 04/05/2025
This vulnerability represents a critical cross site scripting flaw in TIBCO JasperReports Server versions 8.0.4 and 8.2.0 that exploits insufficient input validation in the user interface request/response handling mechanisms. The vulnerability occurs when the application fails to properly sanitize user-supplied input parameters before incorporating them into dynamic web content, creating an attack surface where malicious scripts can be injected into trusted application code. This weakness specifically manifests in the UI validation layer where requests containing crafted payloads are not adequately filtered or escaped, allowing attackers to inject malicious javascript code that executes within the context of other users' browsers.
The technical exploitation of this vulnerability follows the standard XSS attack pattern where an attacker crafts a malicious URL containing script payloads that, when clicked by a victim user, executes in their browser session. The vulnerability stems from inadequate output encoding and input sanitization practices within the JasperReports Server's web interface, particularly in how it processes user-provided parameters and incorporates them into dynamic HTML content. This allows attackers to bypass the application's security controls and inject persistent or reflected scripts that can harvest session cookies, redirect users to malicious sites, or perform unauthorized actions on behalf of authenticated users. The flaw aligns with CWE-79 - Improper Neutralization of Input During Web Page Generation, which specifically addresses the failure to properly escape or encode user input before incorporating it into web responses.
The operational impact of this vulnerability extends beyond simple session hijacking as it provides attackers with persistent access to user sessions within the JasperReports environment. Successful exploitation can lead to full administrative compromise of the reporting server, allowing attackers to access sensitive business intelligence data, modify report configurations, create new user accounts, or escalate privileges within the application. The vulnerability is particularly dangerous in enterprise environments where JasperReports servers often contain critical business data and where users may have elevated permissions. Attackers can leverage this flaw to maintain long-term access to the system, making it a significant threat to data confidentiality and integrity.
Mitigation strategies should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application's request processing pipeline. Organizations should deploy web application firewalls that can detect and block malicious script patterns, implement proper content security policies to prevent script execution, and ensure all user-supplied input is properly sanitized before being rendered in web responses. The recommended approach includes applying the vendor-provided patches immediately, implementing strict input validation rules, and configuring the application to use proper output encoding for all dynamic content generation. Additionally, security monitoring should be enhanced to detect anomalous user behavior patterns that may indicate exploitation attempts, and regular security assessments should be conducted to identify similar vulnerabilities in other components of the reporting infrastructure. This vulnerability demonstrates the importance of following secure coding practices and adheres to ATT&CK technique T1566 - Phishing, where the malicious link serves as the initial access vector for the attack.