CVE-2019-2461 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 • 06/28/2023
The vulnerability identified as CVE-2019-2461 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 exists within the Outside In Filters subcomponent and affects Oracle Fusion Middleware versions 8.5.3 and 8.5.4, making it a targeted issue for organizations utilizing these particular software versions. The vulnerability demonstrates characteristics that align with CWE-20, which represents "Improper Input Validation," specifically manifesting as insufficient validation of input data processed through the filtering mechanisms.
The technical exploitation of this vulnerability occurs through unauthenticated network access via HTTP protocols, presenting an easily exploitable threat vector that requires minimal attacker privileges. The flaw enables an attacker to compromise the Oracle Outside In Technology component without requiring authentication credentials, leveraging the HTTP protocol as the primary attack channel. This vulnerability specifically impacts the availability aspect of the system's security posture as indicated by the CVSS 3.0 Base Score of 5.3, which falls under the availability impacts category with a low attack complexity and no required privileges. The vulnerability's operational impact manifests as a partial denial of service condition, where the targeted system experiences reduced functionality rather than complete system failure.
The CVSS scoring mechanism assumes that the software utilizing Outside In Technology directly passes network-received data to the vulnerable code without intermediate validation or sanitization. However, if applications implement proper data validation or if data flows through additional security layers before reaching the Outside In Technology code, the effective CVSS score could be significantly reduced. This consideration highlights the importance of understanding the complete software architecture and data flow paths when assessing vulnerability impact. The vulnerability's classification as a partial denial of service rather than a complete system compromise indicates that attackers can disrupt service availability but cannot gain full system control or execute arbitrary code.
Organizations should implement immediate mitigations including patching to the latest supported versions of Oracle Fusion Middleware, which would address the underlying input validation deficiencies. Network segmentation and access controls should be strengthened to limit unnecessary exposure of the affected components to external networks. Additionally, implementing proper input validation at application layers that utilize Outside In Technology can provide defense-in-depth protection against exploitation attempts. The vulnerability demonstrates the critical importance of maintaining up-to-date software components and following security best practices such as those outlined in the OWASP Top Ten and NIST cybersecurity frameworks to prevent exploitation of similar input validation flaws.