CVE-2018-3218 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 access to critical data or complete access to all Oracle Outside In Technology accessible data as well as unauthorized update, insert or delete access to some 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 Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N).
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Analysis
by VulDB Data Team • 05/26/2023
The vulnerability identified as CVE-2018-3218 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 and convert various file formats. This particular flaw affects versions 8.5.3 and 8.5.4 of the Outside In Filters subcomponent, which serves as the core processing engine for handling document conversions and data extraction. The vulnerability operates at the intersection of network protocol handling and file processing, creating a pathway for malicious actors to exploit weaknesses in how the technology processes external data inputs through HTTP protocols.
This security weakness represents a significant concern due to its easily exploitable nature and the potential for unauthorized access to sensitive data. The vulnerability requires an unauthenticated attacker with network access via HTTP to initiate exploitation, making it particularly dangerous in environments where the technology is exposed to external networks. The attack vector specifically targets the protocol handling mechanisms within the Outside In Technology codebase, where network-received data is processed without adequate validation or sanitization measures. The CVSS score of 7.1 reflects the high impact potential on confidentiality and integrity, with the base score indicating that successful exploitation can lead to complete access to all accessible data and unauthorized modification capabilities.
The operational impact of this vulnerability extends beyond simple data compromise, as it can result in unauthorized update, insert, or delete operations against Oracle Outside In Technology accessible data. This means that attackers can not only read sensitive information but also modify or destroy data within the affected systems. The requirement for human interaction from a person other than the attacker suggests that social engineering or user manipulation may be necessary to complete the attack, though this does not mitigate the underlying technical vulnerability. The attack scenario typically involves an attacker sending maliciously crafted data through HTTP to a system running the vulnerable Outside In Technology, which then processes this data without proper input validation, leading to potential code execution or data access violations.
The technical flaw manifests in insufficient data validation mechanisms within the Outside In Filters processing pipeline, where network-received inputs are not adequately sanitized before being processed by the underlying conversion engines. This vulnerability aligns with CWE-20, which addresses improper input validation, and represents a classic example of how network protocol handling can create attack surfaces when combined with file processing capabilities. Organizations using Oracle Fusion Middleware with Outside In Technology are particularly at risk, as the vulnerability can be leveraged to gain unauthorized access to critical business data and potentially establish persistent access points within network environments. The CVSS vector specifically indicates that the attack requires low complexity, no privileges, and user interaction, while the score assumes direct network data processing, though implementations that do not pass network data directly to the vulnerable code may present lower risk profiles.
Mitigation strategies for CVE-2018-3218 should prioritize immediate patching of affected Oracle Fusion Middleware installations to versions that contain the necessary security fixes. Organizations should implement network segmentation and access controls to limit exposure of systems running Outside In Technology to untrusted networks, while also deploying network monitoring solutions to detect anomalous HTTP traffic patterns that might indicate exploitation attempts. Additionally, security teams should conduct comprehensive vulnerability assessments to identify all systems running affected versions of the technology and ensure proper input validation measures are implemented at application layers that interface with the Outside In components. The implementation of web application firewalls and intrusion detection systems can provide additional protection against exploitation attempts, while regular security audits should verify that proper data sanitization protocols are maintained throughout the data processing pipeline.