CVE-2021-2430 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).
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Analysis
by VulDB Data Team • 07/24/2021
The vulnerability identified as CVE-2021-2430 resides within Oracle Outside In Technology, a component of Oracle Fusion Middleware that functions as a suite of software development kits. This particular flaw manifests in version 8.5.5 of the Outside In Filters component, representing a significant security weakness that can be exploited by unauthenticated attackers. The vulnerability's classification as difficult to exploit indicates that while the attack vector is not trivial, it remains a genuine threat to systems utilizing this technology. The attack requires network access via HTTP protocol, making it accessible to adversaries who can reach the target system over the network without requiring prior authentication credentials.
The technical nature of this vulnerability stems from insufficient input validation and processing within the Outside In Technology filters, which are designed to handle various file formats and data types. When data is received over a network and passed directly to the Outside In Technology processing components, the vulnerability can be triggered through malformed or specially crafted input. The CVSS 3.1 scoring system assigns a base score of 6.5, reflecting the medium severity of the flaw, with specific impact ratings of low confidentiality and high integrity. This scoring indicates that while the vulnerability does not directly compromise availability, it can result in significant data modification and unauthorized access to sensitive information. The attack vector assessment shows AV:N (network access), AC:H (high attack complexity), PR:N (no privileges required), and UI:N (no user interaction needed), suggesting that the vulnerability can be exploited remotely without requiring user involvement.
The operational impact of CVE-2021-2430 extends beyond simple data compromise, as successful exploitation can lead to unauthorized creation, deletion, or modification of critical data within the Oracle Outside In Technology environment. This represents a substantial risk to data integrity, potentially allowing attackers to alter or destroy important information assets. Additionally, the vulnerability enables unauthorized read access to subsets of accessible data, creating opportunities for information disclosure and potential further exploitation. The security implications are particularly concerning given that Outside In Technology is widely used in enterprise environments for processing and handling sensitive documents and data. The vulnerability's classification under CWE-20 (Improper Input Validation) and its alignment with ATT&CK technique T1074.001 (Data Staged) demonstrates how this flaw can be leveraged for data exfiltration and manipulation activities, making it a significant concern for organizations relying on Oracle Fusion Middleware solutions.
Organizations should implement immediate mitigations including network segmentation to limit access to systems running Oracle Outside In Technology, deployment of web application firewalls to filter malicious HTTP requests, and application of Oracle's security patches as they become available. The CVSS vector analysis reveals that the actual risk may be lower if systems properly validate and sanitize data before passing it to Outside In Technology components, emphasizing the importance of proper input validation in application code. Regular security assessments and monitoring of network traffic for suspicious patterns related to HTTP requests to affected systems should be implemented as part of comprehensive security operations. The vulnerability's potential for being combined with other attack vectors makes it particularly dangerous in environments where multiple systems are interconnected, as it could serve as a stepping stone for more extensive compromise operations.