CVE-2020-2536 in Outside In Technology
Summary
by MITRE
Vulnerability in the Oracle Outside In Technology product of Oracle Fusion Middleware (component: Outside In Filters). The supported version that is affected is 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 update, insert or delete access to some of Oracle Outside In Technology accessible data as well as 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 5.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N).
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Analysis
by VulDB Data Team • 03/23/2024
The vulnerability identified as CVE-2020-2536 resides within Oracle Outside In Technology, a comprehensive suite of software development kits that enable applications to process and manipulate various file formats through a unified interface. This technology serves as a foundational component within Oracle Fusion Middleware, specifically within the Outside In Filters module where it handles file processing operations for diverse document types. The affected version 8.5.4 represents a critical point of weakness within this ecosystem, as it exposes the underlying processing mechanisms to unauthorized access patterns that can be exploited by malicious actors without requiring authentication credentials. The vulnerability operates through the HTTP protocol, making it accessible to attackers who can leverage network-based attacks against systems that utilize this technology.
The technical flaw manifests as an insufficient input validation mechanism within the Outside In Filters component that processes incoming data streams. When applications utilizing the Oracle Outside In Technology SDK receive data over HTTP connections, the processing pipeline fails to adequately sanitize or validate the incoming file content before executing processing operations. This weakness creates opportunities for attackers to craft malicious input that can manipulate the processing behavior of the technology stack. The vulnerability's classification as easily exploitable stems from the fact that it requires minimal technical sophistication to implement, though it does demand human interaction from users who may inadvertently trigger the malicious processing sequence. The attack vector operates at the network level with low access complexity, meaning that an attacker can initiate exploitation from remote locations without requiring physical access or elevated privileges.
The operational impact of this vulnerability extends across multiple security domains, creating potential pathways for unauthorized data manipulation and access. Successful exploitation can result in unauthorized update, insert, or delete operations against data that is accessible through the Oracle Outside In Technology interface, effectively compromising data integrity. Additionally, attackers can gain unauthorized read access to sensitive data subsets that are processed through this technology, potentially exposing confidential information. The CVSS 3.0 score of 5.4 reflects the balanced impact across confidentiality and integrity aspects, with the score assuming direct network data processing scenarios. However, the actual severity may vary depending on how applications implement the technology, as the vulnerability's impact is contingent upon the data flow patterns within specific software implementations. The requirement for human interaction indicates that while the vulnerability is accessible to remote attackers, it may require user involvement in the exploitation process, such as opening or processing a malicious file.
Organizations utilizing Oracle Outside In Technology should implement immediate mitigation strategies to address this vulnerability. The primary recommendation involves applying the relevant Oracle security patches and updates that specifically address this CVE, as these updates contain the necessary code modifications to validate input parameters properly. Network segmentation and access controls should be strengthened to limit exposure of systems that utilize this technology, particularly those handling sensitive data. Implementing network monitoring solutions that can detect anomalous HTTP traffic patterns related to file processing operations can provide early warning capabilities. The vulnerability aligns with CWE-20, which addresses improper input validation, and maps to ATT&CK technique T1059 for command and scripting interpreter usage. Organizations should also consider implementing application-level controls such as file type validation and content scanning to prevent malicious files from reaching the Outside In Technology processing pipeline, thereby reducing the attack surface and potential impact of exploitation attempts.