CVE-2018-3221 in Outside In Technology
Summary
by MITRE
Vulnerability in the Oracle Outside In Technology component of Oracle Fusion Middleware (subcomponent: Outside In Filters). The supported version that is 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 require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Outside In Technology and 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 7.1 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H).
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Analysis
by VulDB Data Team • 05/26/2023
The vulnerability identified as CVE-2018-3221 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 affects versions 8.5.3 and 8.5.4 of the Outside In Filters subcomponent, which serves as the core processing engine for document conversion and manipulation tasks. The vulnerability represents a significant security weakness that can be exploited by unauthenticated attackers who gain network access through HTTP protocols, making it particularly dangerous in enterprise environments where such services are publicly exposed.
The technical nature of this vulnerability manifests as an easily exploitable flaw that requires minimal attacker resources to initiate successful attacks. The vulnerability operates through a combination of network-based exploitation and human interaction requirements, meaning that while the initial attack vector is accessible over HTTP, successful exploitation still requires some form of user engagement or interaction from individuals within the target environment. This characteristic places the vulnerability in the category of those that can be automated to some extent but still require human intervention to achieve full compromise. The flaw specifically targets the processing logic within Outside In Technology, where network-received data is passed directly to the vulnerable code modules, creating a direct pathway for exploitation.
The operational impact of CVE-2018-3221 extends beyond simple data compromise to include complete denial of service conditions that can cause system hangs or repeated crashes, effectively rendering the affected Oracle Outside In Technology components unusable. This availability impact is rated as high severity in the CVSS scoring system, reflecting the potential for complete service disruption that can significantly impact business operations. Additionally, the vulnerability enables unauthorized read access to sensitive data within the affected system, allowing attackers to extract information from what should be restricted access areas. The combination of confidentiality and availability impacts creates a particularly dangerous scenario where attackers can both disrupt services and extract valuable information from the compromised systems.
From a cybersecurity perspective, this vulnerability aligns with CWE-125, which describes out-of-bounds read conditions, and demonstrates characteristics consistent with the ATT&CK framework's initial access and execution phases. The CVSS 3.0 scoring of 7.1 reflects the severity of the combined impacts, with a base score indicating high risk and a vector that shows network accessibility with low attack complexity and no required privileges. The vulnerability's classification as requiring human interaction suggests it may be exploited through social engineering or user engagement tactics that could be combined with the network-based exploitation to create more sophisticated attack scenarios.
Organizations should implement immediate mitigations including patching to the latest supported versions of Oracle Fusion Middleware, network segmentation to limit access to affected services, and monitoring for suspicious HTTP traffic patterns that might indicate exploitation attempts. The CVSS score assumptions highlight the importance of understanding how data flows through the system architecture, as organizations using Outside In Technology in network-received data processing scenarios face the highest risk. Security teams should also consider implementing network-based intrusion detection systems to monitor for exploitation attempts and establish incident response procedures specifically addressing this type of denial of service vulnerability that can cause complete system unavailability.