CVE-2014-7296 in SpagoBI
Summary
by MITRE
The default configuration in the accessibility engine in SpagoBI 5.0.0 does not set FEATURE_SECURE_PROCESSING, which allows remote authenticated users to execute arbitrary Java code via a crafted XSL document.
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Analysis
by VulDB Data Team • 03/13/2019
The vulnerability identified as CVE-2014-7296 represents a critical security flaw in the SpagoBI 5.0.0 business intelligence platform that stems from improper configuration of the XML processing engine. This issue specifically affects the accessibility engine component that handles XSL transformation operations, creating a pathway for remote authenticated attackers to execute arbitrary Java code on the affected system. The root cause lies in the default configuration failing to enable the FEATURE_SECURE_PROCESSING parameter, which is essential for preventing malicious XML external entity (XXE) processing attacks. This configuration oversight exposes the platform to serious exploitation opportunities that can lead to complete system compromise and unauthorized access to sensitive business data.
The technical implementation of this vulnerability involves the XML parser's handling of XSL documents within the SpagoBI accessibility engine. When FEATURE_SECURE_PROCESSING is not enabled, the XML processor becomes vulnerable to maliciously crafted XSL files that can trigger XXE attacks. Attackers can construct specially formatted XSL documents that, when processed by the vulnerable engine, allow them to execute arbitrary Java code with the privileges of the SpagoBI application. This vulnerability operates at the intersection of XML processing security and Java application security, where improper XML parser configuration creates an attack surface that bypasses normal application security controls. The flaw directly maps to CWE-611, which addresses Improper Restriction of XML External Entity Reference, and represents a classic example of insecure XML processing that can lead to remote code execution.
The operational impact of CVE-2014-7296 extends beyond simple code execution, as it provides attackers with the ability to perform complete system compromise through the SpagoBI platform. Remote authenticated users can leverage this vulnerability to gain unauthorized access to business intelligence data, potentially exposing sensitive corporate information, financial reports, and strategic business data. The attack requires only authentication to the SpagoBI system, making it particularly dangerous as it can be exploited by insiders or compromised legitimate users. Organizations using SpagoBI 5.0.0 without proper security hardening are at significant risk of data breaches, system infiltration, and potential regulatory compliance violations. The vulnerability can also serve as a foothold for further attacks within the network infrastructure, as compromised SpagoBI systems often have access to enterprise databases and other critical resources.
Mitigation strategies for this vulnerability should focus on immediate configuration remediation and broader security hardening measures. The primary fix involves enabling the FEATURE_SECURE_PROCESSING parameter within the XML processing configuration of the SpagoBI accessibility engine, which prevents XXE processing attacks by disabling external entity resolution. Organizations should also implement proper input validation for all XSL document processing, restrict XML parser capabilities to only essential functions, and consider upgrading to patched versions of SpagoBI if available. Security teams should monitor for suspicious XSL processing activities and implement network segmentation to limit potential lateral movement if exploitation occurs. Additional defensive measures include enabling application firewalls, restricting file upload capabilities, and conducting regular security assessments of XML processing components. This vulnerability aligns with ATT&CK technique T1059.007 for execution through Java and demonstrates the importance of secure configuration management as outlined in the OWASP Top Ten security principles.