CVE-2009-5101 in BI Server
Summary
by MITRE
Pentaho BI Server 1.7.0.1062 and earlier includes the session ID (JSESSIONID) in the URL, which allows attackers to obtain it from session history, referer headers, or sniffing of web traffic.
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Analysis
by VulDB Data Team • 01/10/2018
The vulnerability described in CVE-2009-5101 represents a critical session management flaw in Pentaho Business Intelligence Server versions 1.7.0.1062 and earlier. This issue stems from the improper handling of session identifiers within the web application's URL structure, creating a significant security risk that directly violates established web application security best practices. The vulnerability specifically allows session identifiers to be embedded within URLs, making them accessible through multiple attack vectors that compromise user authentication and authorization mechanisms.
This technical flaw constitutes a direct violation of CWE-613, which addresses insufficient session expiration and improper session handling in web applications. The Pentaho BI Server's implementation fails to properly separate session management from URL parameters, creating an environment where session identifiers become exposed through standard web traffic analysis. When JSESSIONID values appear in URLs, they can be easily captured by attackers through various means including web server logs, browser history, proxy server records, or network traffic sniffing operations. The vulnerability operates at the application layer and affects the confidentiality and integrity of user sessions, potentially enabling session hijacking attacks where malicious actors can impersonate legitimate users.
The operational impact of this vulnerability extends beyond simple session exposure, as it creates a pathway for persistent unauthorized access to business intelligence data and reporting capabilities. Attackers who obtain session identifiers can potentially access sensitive business information, manipulate dashboards, execute administrative functions, and maintain prolonged access to the system without re-authentication. This vulnerability particularly affects organizations relying on Pentaho BI Server for critical business intelligence operations, as it undermines the fundamental security controls that protect against unauthorized data access and system compromise. The exposure through referer headers and session history also means that even seemingly secure browsing environments can inadvertently expose session tokens to malicious actors.
Mitigation strategies for this vulnerability should focus on implementing proper session management practices that align with industry standards and security frameworks. Organizations must ensure that session identifiers are handled exclusively through secure cookies with appropriate security attributes such as HttpOnly and Secure flags, rather than being embedded in URLs. The recommended approach involves configuring the web application to use cookie-based session management exclusively, implementing proper session regeneration after authentication, and ensuring that session tokens are not transmitted through URL parameters. Additionally, network security measures including SSL/TLS encryption and proper firewall configurations should be implemented to prevent traffic sniffing attacks. Organizations should also consider implementing additional security controls such as IP address binding for sessions, timeout mechanisms, and regular session validation checks to further reduce the attack surface. This vulnerability highlights the importance of following OWASP Top Ten security guidelines and adheres to ATT&CK technique T1566 which covers credential access through session hijacking and token manipulation. The remediation process requires immediate attention to the application's session management configuration and comprehensive security testing to ensure that no other similar vulnerabilities exist within the system's architecture.