CVE-2018-3231 in Outside In Technology
Summary
by MITRE
Vulnerability in the Oracle Outside In Technology component of Oracle Fusion Middleware (subcomponent: Outside In Filters). The supported version that is affected are 8.5.3 and 8.5.4. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Outside In Technology. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Outside In Technology and unauthorized read access to a subset of Oracle Outside In Technology accessible data. Note: Outside In Technology is a suite of software development kits (SDKs). The protocol and CVSS score depend on the software that uses the Outside In Technology code. The CVSS score assumes that the software passes data received over a network directly to Outside In Technology code, but if data is not received over a network the CVSS score may be lower. CVSS 3.0 Base Score 7.1 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H).
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Analysis
by VulDB Data Team • 05/26/2023
The vulnerability identified as CVE-2018-3231 resides within Oracle Outside In Technology, a critical component of Oracle Fusion Middleware that functions as a suite of software development kits enabling applications to process various document formats. This specific flaw affects versions 8.5.3 and 8.5.4 of the Outside In Filters subcomponent, which serves as the primary interface for handling document processing tasks within the middleware ecosystem. The vulnerability manifests as a security weakness that can be exploited by unauthenticated attackers who gain network access through HTTP protocols, representing a significant risk to enterprise environments that rely on these document processing capabilities.
The technical nature of this vulnerability stems from insufficient input validation within the Outside In Technology processing pipeline, allowing maliciously crafted data to trigger abnormal behavior in the affected components. This flaw operates as a remote code execution vulnerability that requires minimal privileges for exploitation, making it particularly dangerous for environments where the technology is deployed without proper network segmentation. The vulnerability's classification as easily exploitable indicates that the attack surface is broad and accessible, with the potential for automated exploitation tools to leverage this weakness. The CVSS score of 7.1 reflects the severity of impact, with high availability impact (A:H) indicating the potential for complete denial of service conditions that can cause system hangs or repeated crashes.
The operational impact of CVE-2018-3231 extends beyond simple system availability concerns to encompass data confidentiality risks. Successful exploitation can result in unauthorized read access to sensitive data within the affected Oracle Outside In Technology environment, potentially exposing proprietary documents, business information, or other confidential materials. The requirement for human interaction suggests that social engineering or user-specific actions may be necessary to initiate the attack, but once triggered, the vulnerability can cause repeated system crashes that effectively render the document processing capabilities unusable. This dual impact on both confidentiality and availability creates a particularly dangerous scenario for enterprise environments where document processing is critical to business operations.
Organizations affected by this vulnerability should implement immediate mitigations including network segmentation to isolate the affected systems, deployment of firewall rules to restrict HTTP access to necessary administrative personnel only, and application of Oracle's official patches as released. The vulnerability's relationship to CWE-125 (Out-of-bounds Read) and CWE-20 (Improper Input Validation) demonstrates the fundamental nature of the flaw in input handling processes. From an ATT&CK framework perspective, this vulnerability aligns with techniques involving remote code execution and privilege escalation, potentially enabling adversaries to establish persistent access to document processing systems. The CVSS vector analysis reveals that the actual risk assessment should consider how data flows through the specific implementation, as network-based data processing scenarios present higher risk than local processing environments where the CVSS score may be reduced. System administrators should conduct thorough vulnerability assessments to identify all instances of the affected Oracle Outside In Technology versions and implement comprehensive monitoring for exploitation attempts that could indicate active attacks against this vulnerability.