CVE-2019-2458 in Outside In Technology
Summary
by MITRE
Vulnerability in the Oracle Outside In Technology component of Oracle Fusion Middleware (subcomponent: Outside In Filters). Supported versions that are 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 of this vulnerability can result in 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 5.3 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).
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Analysis
by VulDB Data Team • 06/27/2023
The vulnerability identified as CVE-2019-2458 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 file formats. This specific 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 file parsing operations. The vulnerability demonstrates characteristics of a network-based attack vector that requires no authentication, making it particularly dangerous for systems that expose this functionality over HTTP protocols. The flaw represents a significant security weakness in the processing pipeline where external inputs are handled without adequate validation or sanitization measures.
The technical implementation of this vulnerability stems from insufficient input validation within the Outside In Technology processing engine, specifically when handling data received through HTTP connections. The flaw allows an unauthenticated attacker to craft malicious input that can trigger unexpected behavior within the processing routines, potentially leading to resource exhaustion or memory corruption scenarios. This weakness manifests as a partial denial of service condition where the targeted system experiences degraded performance or temporary unavailability of the affected services. The vulnerability's exploitability is classified as easily accessible due to the lack of authentication requirements and the straightforward network-based attack mechanism that can be executed from remote locations without specialized privileges or credentials. Security researchers have categorized this issue under CWE-20, which represents "Improper Input Validation" as the underlying weakness, aligning with common attack patterns documented in the ATT&CK framework under the T1203 technique for "Exploitation for Client Execution" and T1499 for "Endpoint Denial of Service."
The operational impact of CVE-2019-2458 extends beyond simple service disruption, as it can compromise the availability and reliability of systems that depend on Oracle Outside In Technology for document processing and file conversion operations. Organizations utilizing this technology in production environments face potential business continuity risks when this vulnerability is exploited, particularly in scenarios where document processing workflows are critical to business operations. The partial denial of service condition can manifest as slowed processing times, application hangs, or complete service unavailability depending on the scale and nature of the attack. When considering the CVSS 3.0 scoring system with a base score of 5.3, the assessment reflects the availability impact and the relatively low complexity required for exploitation. The vulnerability's severity is particularly concerning because it affects middleware components that are often integrated into broader enterprise applications, potentially creating cascading effects throughout the organization's IT infrastructure. The CVSS vector analysis indicates network accessibility with low attack complexity and no privilege requirements, making it accessible to a broad range of threat actors including automated scanning tools and opportunistic attackers.
Mitigation strategies for CVE-2019-2458 should prioritize immediate patching of affected Oracle Fusion Middleware installations to version 8.5.5 or later, which contains the necessary security fixes. Organizations should implement network-level controls such as firewalls and access control lists to restrict access to the affected services and minimize exposure to external threats. Additional defensive measures include input validation controls, rate limiting mechanisms, and monitoring systems to detect anomalous processing patterns that might indicate exploitation attempts. The implementation of network segmentation and the principle of least privilege can significantly reduce the attack surface and limit potential damage from successful exploitation. Security teams should also consider deploying intrusion detection systems that can identify and alert on suspicious network traffic patterns associated with this vulnerability. Regular vulnerability assessments and penetration testing should be conducted to ensure that all instances of Oracle Outside In Technology are properly secured and that no additional attack vectors remain unaddressed. Organizations should also review their incident response procedures to ensure rapid identification and containment of any exploitation attempts, as the vulnerability's characteristics make it particularly suitable for automated attack scenarios that could overwhelm traditional monitoring systems.