CVE-2018-3099 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 is 8.5.3. 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 and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Outside In Technology. 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:H/I:N/A:L).
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Analysis
by VulDB Data Team • 04/10/2023
The vulnerability described in CVE-2018-3099 represents a critical security flaw within Oracle Outside In Technology, a comprehensive suite of software development kits that enable applications to process and manipulate various document formats including images, documents, and multimedia files. This vulnerability specifically affects Oracle Fusion Middleware version 8.5.3, where the Outside In Filters component contains a flaw that can be exploited by unauthenticated attackers. The vulnerability operates through HTTP network protocols and demonstrates characteristics of a remote code execution threat that requires minimal attacker privileges to exploit. The technical nature of this vulnerability stems from improper input validation within the document processing pipeline, where maliciously crafted data can trigger unexpected behavior in the underlying processing libraries.
The operational impact of CVE-2018-3099 extends beyond simple data compromise, as successful exploitation can lead to complete unauthorized access to all data accessible through the affected Oracle Outside In Technology components. This represents a significant confidentiality risk that aligns with CWE-20, which addresses improper input validation, and can result in unauthorized data access that may include sensitive business information, intellectual property, or personal data. Additionally, the vulnerability can enable partial denial of service conditions that affect system availability and performance, creating operational disruption that impacts business continuity. The CVSS score of 7.1 reflects the severity of these combined impacts, with high confidentiality impact and low availability impact, indicating that while complete system compromise is possible, the primary threat focuses on data exposure rather than complete system failure.
The exploitation requirements for this vulnerability include network access via HTTP and human interaction from a legitimate user, which creates a specific attack scenario where an attacker must first gain network access and then convince a user to interact with malicious content. This human interaction requirement typically manifests through social engineering tactics such as phishing emails or malicious web links that prompt users to open compromised documents. The attack vector operates at the application layer, making it particularly dangerous in enterprise environments where users frequently interact with documents from external sources. Security professionals should note that the CVSS scoring assumes direct network data processing, but if applications implement proper data sanitization or validation before passing data to the Outside In Technology components, the actual risk exposure may be reduced. The vulnerability demonstrates how software development kits can become attack vectors when they fail to properly validate input data, creating opportunities for attackers to manipulate the underlying processing libraries through carefully crafted malicious files.
Mitigation strategies for CVE-2018-3099 should prioritize immediate patching of Oracle Fusion Middleware installations to version 8.5.3 or later, as Oracle has released security updates specifically addressing this vulnerability. Organizations should also implement network-level controls including firewalls that restrict access to affected services, particularly those that process external document uploads. Input validation and sanitization should be enhanced at application layers to prevent malicious data from reaching the Outside In Technology components, which aligns with ATT&CK technique T1070.004 for indicator removal and T1059.007 for command and scripting interpreter. Additionally, security monitoring should be implemented to detect unusual patterns in document processing activities, particularly when users access external documents from untrusted sources. Regular security assessments and vulnerability scanning should be conducted to identify any other potentially affected components that may utilize the Outside In Technology SDKs, as this vulnerability demonstrates how seemingly minor flaws in software libraries can create significant security risks across entire application ecosystems.