CVE-2016-3528 in Internet Expenses
Summary
by MITRE
Unspecified vulnerability in the Oracle Internet Expenses component in Oracle E-Business Suite 12.1.1, 12.1.2, 12.1.3, 12.2.3, 12.2.4, and 12.2.5 allows remote attackers to affect availability via vectors related to Expenses Admin Utilities.
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Analysis
by VulDB Data Team • 09/07/2022
The vulnerability identified as CVE-2016-3528 resides within the Oracle Internet Expenses component of the Oracle E-Business Suite, specifically affecting versions 12.1.1 through 12.2.5. This weakness represents a significant security concern for organizations utilizing Oracle's enterprise resource planning solutions, as it provides remote attackers with the capability to compromise system availability. The vulnerability manifests through Expenses Admin Utilities, which are administrative functions designed to manage expense reporting processes within the enterprise suite.
This unspecified vulnerability falls under the broader category of availability impact threats, where attackers can potentially disrupt normal operations without necessarily gaining unauthorized access to sensitive data or system privileges. The attack vector is particularly concerning as it enables remote exploitation, meaning malicious actors can target affected systems from outside the organization's network perimeter. The Expenses Admin Utilities component typically handles administrative tasks such as expense policy management, approval workflows, and expense report processing, making it a critical pathway for potential disruption.
The technical implications of this vulnerability extend beyond simple service disruption, as it represents a potential denial-of-service condition that could severely impact business operations. Organizations relying on Oracle E-Business Suite for expense management may experience complete operational paralysis during an attack, as the affected utilities are fundamental to expense processing workflows. The lack of specific details in the CVE description suggests that the underlying flaw may involve improper input validation, resource exhaustion, or inadequate error handling within the administrative interfaces. This type of vulnerability is often categorized under CWE-400, which addresses "Uncontrolled Resource Consumption" or similar resource management issues that can lead to availability compromise.
From an operational standpoint, the impact of CVE-2016-3528 could be devastating for organizations with extensive expense reporting processes, as it directly affects the availability of critical business functions. The vulnerability's presence in multiple versions of Oracle E-Business Suite indicates a widespread exposure across the installed base, making it a high-priority target for threat actors seeking to disrupt enterprise operations. The attack surface is particularly broad given that the Oracle E-Business Suite is widely deployed across various industries, including finance, manufacturing, and government sectors where expense management is a core business function.
Organizations should implement immediate mitigations including applying the relevant Oracle security patches, which would address the underlying flaw in the Expenses Admin Utilities component. Network segmentation and access controls should be strengthened to limit exposure of administrative interfaces to trusted networks only. The vulnerability aligns with ATT&CK technique T1499, which covers "Endpoint Denial of Service," and represents a classic example of how administrative utilities can become attack vectors when not properly secured. Additionally, monitoring for unusual activity patterns in expense reporting systems and implementing robust intrusion detection systems can help identify exploitation attempts before they cause significant disruption. Security teams should also consider implementing application firewalls and web application firewalls to protect the administrative interfaces from unauthorized access attempts, as the vulnerability's remote exploit capability makes traditional network-based defenses insufficient for protection.