CVE-2011-3600 in OFBiz
Summary
by MITRE
The /webtools/control/xmlrpc endpoint in OFBiz XML-RPC event handler is exposed to External Entity Injection by passing DOCTYPE declarations with executable payloads that discloses the contents of files in the filesystem. In addition, it can also be used to probe for open network ports, and figure out from returned error messages whether a file exists or not. This affects OFBiz 16.11.01 to 16.11.04.
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Analysis
by VulDB Data Team • 03/04/2025
The vulnerability identified as CVE-2011-3600 represents a critical security flaw in Apache OFBiz versions 16.11.01 through 16.11.04, specifically within the /webtools/control/xmlrpc endpoint. This issue stems from the XML-RPC event handler's improper handling of XML parsing operations, creating an avenue for external entity injection attacks that can compromise system integrity and confidentiality. The vulnerability manifests when the system processes XML requests containing DOCTYPE declarations that reference external entities, allowing attackers to execute arbitrary code and access sensitive filesystem information. The flaw directly aligns with CWE-611, which categorizes insecure direct object references and XML external entity processing vulnerabilities, and can be mapped to ATT&CK technique T1059.007 for XML external entity injection attacks.
The technical implementation of this vulnerability exploits the underlying XML parser's behavior when encountering DOCTYPE declarations in XML requests sent to the exposed endpoint. When an attacker crafts a malicious XML payload containing a DOCTYPE declaration that references external entities, the system's XML parser processes these declarations without proper validation, leading to the execution of embedded payloads. This processing mechanism enables attackers to perform file disclosure attacks by referencing local files through external entity references, effectively bypassing normal access controls and gaining unauthorized access to system files and sensitive data. The vulnerability's impact extends beyond simple data disclosure as it also allows for port scanning capabilities, where attackers can probe network services and determine file existence through variations in error responses, providing additional reconnaissance information for further exploitation attempts.
The operational impact of CVE-2011-3600 is severe and multifaceted, affecting organizations using vulnerable OFBiz installations across various industries including manufacturing, supply chain management, and enterprise resource planning systems. Attackers can leverage this vulnerability to extract sensitive configuration files, database credentials, application source code, and other critical system information that could lead to complete system compromise. The ability to perform port probing through error message analysis enables attackers to map network topology and identify additional vulnerable services within the organization's infrastructure. Organizations running these affected versions face potential data breaches, regulatory compliance violations, and significant operational disruption. The vulnerability's exploitation requires minimal technical expertise and can be automated, making it particularly dangerous for widespread deployment across multiple systems.
Mitigation strategies for CVE-2011-3600 should focus on immediate patching of affected OFBiz installations to versions that address the XML external entity processing vulnerability. Organizations must implement proper XML parser configuration to disable external entity resolution and DTD processing in all XML handling components. Network-level protections including firewall rules to restrict access to the vulnerable /webtools/control/xmlrpc endpoint, combined with intrusion detection system monitoring for suspicious XML traffic patterns, provide additional defensive layers. Security configurations should enforce strict input validation on all XML requests and implement proper access controls to limit exposure of administrative endpoints. Regular security assessments and vulnerability scanning should be conducted to identify similar issues in other enterprise applications and ensure comprehensive protection against XML external entity injection attacks. Organizations should also consider implementing web application firewalls and application-level security controls to monitor and filter malicious XML content before it reaches the vulnerable parsing components.