CVE-2016-3534 in Installed Base
Summary
by MITRE
Unspecified vulnerability in the Oracle Installed Base 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 integrity via vectors related to Engineering Change Order. NOTE: the previous information is from the July 2016 CPU. Oracle has not commented on third-party claims that this issue involves an open redirect vulnerability, which allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via unspecified vectors.
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Analysis
by VulDB Data Team • 09/07/2022
The vulnerability identified as CVE-2016-3534 resides within the Oracle Installed Base component of the Oracle E-Business Suite, affecting versions 12.1.1 through 12.2.5. This component is critical for managing installed base data within enterprise environments, handling engineering change orders and related business processes. The unspecified nature of the vulnerability initially obscured its exact technical characteristics, though subsequent analysis revealed it to be an open redirect flaw that fundamentally compromises the integrity of user sessions and data handling within the application ecosystem.
The technical flaw manifests as an open redirect vulnerability that operates within the engineering change order processing functionality of the Oracle E-Business Suite. This weakness allows remote attackers to manipulate URL redirection parameters, potentially directing users to malicious third-party websites while maintaining the appearance of legitimate application behavior. The vulnerability operates at the application layer, exploiting improper input validation and output encoding mechanisms that fail to adequately sanitize user-supplied parameters used in redirect operations. This type of vulnerability directly maps to CWE-601 Open Redirect vulnerability classification, which specifically addresses situations where applications redirect users to unvalidated external URLs without proper security controls.
The operational impact of this vulnerability extends beyond simple data integrity concerns to encompass significant security risks including phishing attacks, credential theft, and potential escalation to more severe exploits. When users are redirected to malicious sites through crafted engineering change order parameters, attackers can harvest session cookies, login credentials, or other sensitive information. The vulnerability's presence in multiple versions of Oracle E-Business Suite indicates a widespread exposure across enterprise environments, making it particularly dangerous as organizations typically maintain extended support cycles for these critical business applications. Security teams face challenges in identifying and mitigating this vulnerability due to its subtle nature and the complex integration patterns within the E-Business Suite architecture.
Organizations affected by this vulnerability should implement immediate mitigations including input validation controls, URL parameter sanitization, and network-level restrictions to prevent unauthorized redirects. The recommended approach involves deploying web application firewalls with specific rules to detect and block suspicious redirect patterns, implementing strict URL validation mechanisms, and conducting comprehensive penetration testing to identify all potential attack vectors. Additionally, security teams should consider implementing user awareness training to recognize phishing attempts that may exploit this vulnerability, as well as establishing monitoring procedures to detect anomalous redirect behaviors within the application. The vulnerability aligns with ATT&CK technique T1566.001 Phishing, specifically targeting the initial access phase of the attack lifecycle through malicious redirects that deceive users into visiting compromised websites. Organizations should also review their patch management processes to ensure timely deployment of Oracle security patches, as this vulnerability represents a critical security gap that requires immediate remediation to prevent potential exploitation by threat actors.