CVE-2015-4851 in E-Business Suite
Summary
by MITRE
Unspecified vulnerability in the Oracle iSupplier Portal component in Oracle E-Business Suite 12.0.6, 12.1.3, 12.2.3, and 12.2.4 allows remote attackers to affect confidentiality, integrity, and availability via vectors related to XML input.
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Analysis
by VulDB Data Team • 06/22/2022
The vulnerability identified as CVE-2015-4851 resides within the Oracle iSupplier Portal component of the Oracle E-Business Suite, affecting versions 12.0.6, 12.1.3, 12.2.3, and 12.2.4. This represents a critical security flaw that undermines the fundamental security posture of enterprise supply chain management systems. The iSupplier Portal serves as a crucial interface for suppliers to interact with enterprise systems, managing procurement processes, supplier communications, and business transactions. The vulnerability manifests through improper handling of XML input, creating a pathway for malicious actors to compromise the confidentiality, integrity, and availability of the affected systems.
The technical nature of this vulnerability stems from insufficient validation and sanitization of XML data processed by the iSupplier Portal component. When the system receives XML input, it fails to properly validate the structure and content of the data, allowing attackers to craft malicious XML payloads that can exploit weaknesses in the XML parser or processing engine. This type of vulnerability falls under the CWE-20 category, which encompasses "Improper Input Validation," specifically manifesting as inadequate XML input validation. The attack surface is particularly concerning given that XML processing is commonly used for data exchange between systems, making this vulnerability potentially exploitable across various integration points within the enterprise ecosystem.
The operational impact of CVE-2015-4851 extends beyond simple data compromise, as it affects all three core principles of information security. Confidentiality is threatened through potential data exfiltration where attackers can extract sensitive supplier information, procurement data, and business-critical details. Integrity suffers as malicious XML input could be used to modify supplier records, purchase orders, or financial data, leading to unauthorized transactions and financial losses. Availability is compromised through potential denial-of-service attacks that could disrupt supplier portal operations, impacting procurement workflows and business continuity. The vulnerability's remote exploitability means that attackers do not require physical access or network proximity, making it particularly dangerous for enterprise environments with distributed supplier networks.
From a threat modeling perspective, this vulnerability aligns with ATT&CK technique T1210 - "Exploitation of Remote Services," as it enables attackers to leverage network-based services for unauthorized access. The attack vector typically involves sending specially crafted XML data to the iSupplier Portal, which then processes this input through vulnerable XML parsing mechanisms. Security practitioners should consider this vulnerability as part of a broader attack chain that could lead to lateral movement within the enterprise network, especially when the iSupplier Portal interfaces with other critical systems. The vulnerability's impact is amplified in supply chain environments where suppliers may have limited security controls, creating additional attack vectors for sophisticated threat actors.
Organizations should implement immediate mitigations including applying the relevant Oracle Critical Patch Updates that address this vulnerability, implementing network segmentation to limit access to the iSupplier Portal, and deploying robust XML input validation mechanisms. The vulnerability underscores the importance of maintaining up-to-date security patches and implementing defense-in-depth strategies. Security monitoring should focus on unusual XML processing activities and anomalous data access patterns that could indicate exploitation attempts. Regular security assessments of supplier portal configurations and input validation mechanisms are essential to prevent successful exploitation. The vulnerability also highlights the need for comprehensive security awareness training for system administrators and developers regarding the risks associated with XML processing and the importance of proper input validation techniques.