CVE-2018-3140 in Hyperion
Summary
by MITRE
Vulnerability in the Hyperion Essbase Administration Services component of Oracle Hyperion (subcomponent: EAS Console). The supported version that is affected is 11.1.2.4. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Hyperion Essbase Administration Services. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Hyperion Essbase Administration Services, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Hyperion Essbase Administration Services accessible data as well as unauthorized read access to a subset of Hyperion Essbase Administration Services accessible data. CVSS 3.0 Base Score 6.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).
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Analysis
by VulDB Data Team • 05/26/2023
The vulnerability identified as CVE-2018-3140 resides within Oracle Hyperion Essbase Administration Services, specifically affecting the EAS Console subcomponent. This issue represents a significant security weakness in enterprise financial planning and analysis software that serves critical business functions across organizations. The affected version 11.1.2.4 demonstrates the persistent nature of security flaws in legacy enterprise applications where patch management and security updates may not be consistently applied across all deployments. The vulnerability's classification as easily exploitable indicates that attackers can leverage common network-based attack vectors without requiring specialized tools or extensive technical knowledge to identify and exploit the flaw.
The technical nature of this vulnerability stems from insufficient authentication mechanisms within the Hyperion Essbase Administration Services interface. Attackers can exploit this weakness through unauthenticated HTTP network connections, bypassing normal security controls that should protect administrative functions. This flaw operates under the Common Weakness Enumeration category 287, which addresses improper authentication issues that allow unauthorized access to protected resources. The CVSS 3.0 scoring system evaluates this vulnerability as having a base score of 6.1, reflecting moderate severity with specific impacts to confidentiality and integrity. The attack vector AV:N indicates network accessibility, while AC:L suggests low attack complexity, making the vulnerability particularly dangerous in environments where network exposure is common.
The operational impact of this vulnerability extends beyond the immediate compromise of Hyperion Essbase Administration Services. Successful exploitation allows attackers to perform unauthorized modifications to administrative data, including update, insert, and delete operations on sensitive configuration information. Additionally, attackers can gain unauthorized read access to subset of accessible data, potentially exposing critical financial information, user credentials, or system configuration details. The requirement for human interaction from a person other than the attacker suggests that the vulnerability may be exploited through social engineering tactics or by targeting specific administrative users who must interact with the system. This aspect aligns with ATT&CK technique T1210, which describes exploitation of remote services through legitimate user interactions. The scope of impact S:C indicates that the vulnerability can affect additional products, suggesting potential lateral movement or cascading effects within enterprise environments where Hyperion systems integrate with other Oracle products or third-party applications.
Organizations should implement immediate mitigations including network segmentation to restrict access to Hyperion Essbase Administration Services ports, deployment of web application firewalls to monitor and filter HTTP traffic, and implementation of strong authentication controls for administrative interfaces. The vulnerability demonstrates the importance of maintaining up-to-date security patches and implementing comprehensive network monitoring to detect unauthorized access attempts. Given that this affects a core enterprise financial application, organizations should also conduct thorough security assessments of their Hyperion deployments, review access controls, and implement privileged access management solutions. The CVSS vector analysis indicates that while the vulnerability requires human interaction, the potential for significant data compromise makes it a critical concern for enterprise security teams. Regular vulnerability scanning and penetration testing should be conducted to identify similar authentication weaknesses in other enterprise applications and ensure comprehensive protection against similar exploitation vectors.