CVE-2019-2835 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 is 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 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 and 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 7.3 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L).
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Analysis
by VulDB Data Team • 07/06/2020
The vulnerability identified as CVE-2019-2835 resides within Oracle Outside In Technology, a comprehensive suite of software development kits that provides document processing capabilities across various applications. This component specifically affects Oracle Fusion Middleware version 8.5.4, where it operates as part of the Outside In Filters subcomponent. The flaw represents a critical 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 commonly exposed to external networks. The vulnerability's classification as easily exploitable indicates that attackers require minimal prerequisites to execute successful attacks, significantly increasing the risk to organizations that rely on this technology stack.
The technical implementation of this vulnerability stems from inadequate input validation and access control mechanisms within the Outside In Technology processing pipeline. When network data is passed directly to the affected code, the system fails to properly authenticate or authorize requests before processing document content, creating multiple attack vectors for malicious actors. The vulnerability enables unauthorized modification of data through update, insert, or delete operations against accessible data stores, while simultaneously allowing read access to sensitive information within the system's purview. Additionally, attackers can potentially induce partial denial of service conditions that disrupt normal operational capabilities of the affected systems. This multi-faceted impact aligns with CWE-284 (Improper Access Control) and CWE-311 (Missing Encryption of Sensitive Data) categories, reflecting fundamental security weaknesses in the application's data handling and access control mechanisms.
The operational impact of CVE-2019-2835 extends beyond immediate data compromise to encompass significant business continuity risks and regulatory compliance violations. Organizations utilizing Oracle Fusion Middleware 8.5.4 may experience unauthorized data manipulation that could affect critical business processes, while the partial denial of service capability could disrupt document processing workflows essential to enterprise operations. The CVSS 3.0 base score of 7.3 reflects the severity of potential impacts across confidentiality, integrity, and availability domains, with the vector AV:N/AC:L/PR:N/UI:N/S:U indicating network-based exploitation with low attack complexity and no user interaction required. The vulnerability's exploitation directly violates principles outlined in the MITRE ATT&CK framework under T1071.004 (Application Layer Protocol: DNS) and T1566 (Phishing) attack techniques, as attackers can leverage the HTTP protocol to deliver malicious payloads that exploit the document processing functionality.
Mitigation strategies for this vulnerability should focus on immediate patch management and network segmentation approaches. Organizations must prioritize applying Oracle's security patches and updates to upgrade to versions that address the identified access control weaknesses in the Outside In Technology component. Network-level protections including firewall rules, web application firewalls, and strict access controls should be implemented to limit exposure of vulnerable services to untrusted networks. Additionally, organizations should consider implementing input validation controls and data sanitization processes that can prevent malicious data from reaching the vulnerable processing code paths. Regular security assessments and monitoring of document processing workflows will help detect potential exploitation attempts, while maintaining detailed audit logs of system activities can provide forensic evidence for incident response activities. The vulnerability's characteristics make it particularly suitable for automated exploitation, emphasizing the importance of proactive security measures and continuous monitoring of affected systems.