CVE-2014-8125 in Drools jBPM
Summary
by MITRE
XML external entity (XXE) vulnerability in Drools and jBPM before 6.2.0 allows remote attackers to read arbitrary files or possibly have other unspecified impact via a crafted BPMN2 file.
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Analysis
by VulDB Data Team • 05/09/2022
The CVE-2014-8125 vulnerability represents a critical XML external entity injection flaw affecting the Drools and jBPM business process management platforms prior to version 6.2.0. This vulnerability falls under the CWE-611 weakness category, specifically addressing insecure direct object references and XML external entity processing issues. The vulnerability manifests when these platforms process BPMN2 (Business Process Model and Notation) files that contain maliciously crafted XML entities, enabling attackers to exploit the underlying XML parser configuration that permits external entity resolution.
The technical exploitation of this vulnerability occurs through the manipulation of BPMN2 file structures, where attackers can embed external entity declarations that reference local files on the server hosting the Drools or jBPM application. When the platform processes these malicious files, the XML parser resolves external entities, potentially allowing unauthorized access to sensitive files such as configuration files, database credentials, system files, or other confidential data stored on the server. This represents a significant bypass of access controls and can lead to data exfiltration, system compromise, or further lateral movement within the network infrastructure.
The operational impact of CVE-2014-8125 extends beyond simple file read operations, as it can potentially enable more sophisticated attacks depending on the system configuration and file access permissions. Attackers might leverage this vulnerability to access critical system files, application configuration data, or even database connection strings that could facilitate additional exploitation vectors. The vulnerability is particularly dangerous in environments where these platforms handle sensitive business processes or contain confidential data, as it can provide attackers with unauthorized access to business-critical information. This weakness aligns with ATT&CK technique T1566.001 for initial access through malicious files and T1078 for valid accounts and privileges.
Organizations utilizing Drools or jBPM versions prior to 6.2.0 should implement immediate mitigations including updating to the patched versions, disabling external entity resolution in XML parsers, and implementing proper input validation for BPMN2 file processing. Additional defensive measures should include network segmentation, monitoring for suspicious file upload activities, and implementing web application firewalls that can detect and block malicious XML content. The vulnerability demonstrates the importance of secure XML processing configurations and highlights the need for comprehensive security testing of third-party libraries and platform components that handle user-supplied data, particularly in enterprise workflow and business process management systems.