CVE-2021-2452 in Outside In Technology
Summary
by MITRE • 07/21/2021
Vulnerability in the Oracle Outside In Technology product of Oracle Fusion Middleware (component: Outside In Filters). The supported version that is affected is 8.5.5. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Outside In Technology. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all 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 Base Score depend on the software that uses Outside In Technology. The CVSS score assumes that the software passes data received over a network directly to Outside In Technology, but if data is not received over a network the CVSS score may be lower. CVSS 3.1 Base Score 6.5 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N).
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 07/24/2021
The vulnerability identified as CVE-2021-2452 resides within Oracle Outside In Technology, a comprehensive suite of software development kits that enables applications to process and convert various document formats. This technology serves as a critical component within Oracle Fusion Middleware environments, specifically affecting version 8.5.5 which represents a supported release. The flaw manifests within the Outside In Filters component, which handles the parsing and processing of documents received through network protocols. The vulnerability's classification as difficult to exploit indicates that while it requires some level of technical knowledge and specific conditions to leverage, it remains a significant threat to organizations utilizing this technology stack. The attack vector requires unauthenticated network access via HTTP, making it particularly concerning for systems exposed to external networks without proper security controls.
The technical implementation of this vulnerability stems from inadequate input validation and processing within the document parsing mechanisms of Outside In Technology. When applications receive document data over HTTP connections and pass this data directly to the Outside In Technology SDK, the system fails to properly validate or sanitize the incoming content before processing. This weakness allows an attacker to craft malicious documents or manipulate existing ones in ways that trigger unintended behavior within the processing pipeline. The vulnerability's impact spans multiple security domains, enabling unauthorized modification of critical data through the ability to create, delete, or modify content within the system's accessible data stores. Additionally, the flaw permits unauthorized read access to sensitive subsets of data that would normally be restricted, creating potential exposure for confidential information processed through the vulnerable technology stack.
The operational impact of CVE-2021-2452 extends beyond simple data compromise, as it represents a fundamental weakness in how document processing occurs within Oracle Fusion Middleware environments. Organizations utilizing this technology may experience cascading effects where a single exploited vulnerability can lead to unauthorized access across multiple systems that rely on Outside In Technology for document handling capabilities. The CVSS 3.1 base score of 6.5 reflects the moderate severity of the vulnerability, with confidentiality and integrity impacts rated as high, while availability remains low. This scoring mechanism assumes direct network data processing, but the actual risk can vary significantly based on how applications integrate with the technology stack. The vulnerability's exploitation potential increases substantially when applications do not implement proper data sanitization or when they pass network-received data directly to the vulnerable processing components without intermediate validation layers.
Organizations must implement comprehensive mitigation strategies to address this vulnerability effectively, beginning with immediate assessment of all systems utilizing Oracle Outside In Technology 8.5.5. Network segmentation and access controls should be strengthened to limit exposure of vulnerable applications to untrusted networks, while implementing proper input validation and sanitization mechanisms becomes critical for preventing exploitation. The implementation of web application firewalls and content filtering solutions can provide additional protective layers against malicious document processing attempts. Regular security updates and patches from Oracle should be applied immediately upon availability, while application developers should review code implementations to ensure proper data handling practices are followed. Organizations should also consider implementing monitoring solutions that can detect anomalous document processing patterns or unauthorized data modification attempts that might indicate exploitation attempts. This vulnerability aligns with CWE-20, which describes improper input validation, and represents a potential pathway for attackers following MITRE ATT&CK techniques related to privilege escalation and data manipulation within targeted environments.