CVE-2018-2789 in Siebel CRM
Summary
by MITRE
Vulnerability in the Siebel Core - Server Framework component of Oracle Siebel CRM (subcomponent: Services). The supported version that is affected is 17.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Siebel Core - Server Framework. While the vulnerability is in Siebel Core - Server Framework, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Siebel Core - Server Framework accessible data. CVSS 3.0 Base Score 5.0 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N).
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Analysis
by VulDB Data Team • 03/03/2023
The vulnerability identified as CVE-2018-2789 resides within Oracle Siebel CRM's Siebel Core - Server Framework component, specifically within the Services subcomponent of version 17.0. This represents a significant security weakness that affects organizations utilizing Oracle's customer relationship management platform. The vulnerability's classification as easily exploitable indicates that attackers can leverage relatively simple techniques to gain unauthorized access to sensitive system resources. The attack vector requires only network access via HTTP, making it particularly concerning as it can be executed from external networks without requiring physical access to the target system. Security researchers have categorized this issue as a low privilege vulnerability, meaning that an attacker does not need elevated system permissions to exploit the flaw, which significantly broadens the potential threat landscape.
The technical nature of this vulnerability manifests as a weakness in the server framework's handling of requests or data processing within the Siebel Core environment. While the exact implementation details of the flaw remain undisclosed in the public CVE description, the CVSS 3.0 scoring system provides critical insights into its operational characteristics. The base score of 5.0 indicates a medium severity vulnerability with a focus on confidentiality impacts, as reflected by the CVSS vector components indicating low attack complexity, low privilege requirements, and a scope change that could affect additional products beyond the primary target. The vulnerability's potential to impact additional products suggests a cascading effect that could extend beyond the immediate Siebel Core - Server Framework, potentially affecting interconnected systems or services within the Oracle Siebel ecosystem. This characteristic aligns with common patterns seen in software frameworks where a single point of failure can create widespread consequences throughout the application architecture.
From an operational perspective, successful exploitation of CVE-2018-2789 could enable unauthorized read access to a subset of data within the Siebel Core - Server Framework, potentially exposing sensitive customer information, business data, or system configuration details. The confidentiality impact rating of C:L (low) suggests that while the data exposure is limited, it could still contain valuable information for attackers seeking to understand system behavior or extract business-critical data. The scope change indicator of S:C (scope change) indicates that the vulnerability's impact could extend beyond the immediate component, potentially affecting other products or services within the Oracle Siebel suite. This broader impact potential creates additional operational concerns for organizations that may not immediately recognize the full extent of their exposure when addressing this specific vulnerability. The attack scenario typically involves an unauthenticated or low-privileged attacker sending malicious HTTP requests to the vulnerable Siebel server, which then processes these requests through the flawed server framework component.
Organizations affected by CVE-2018-2789 should implement immediate mitigation strategies to reduce their exposure to potential exploitation. The most effective approach involves applying the relevant Oracle security patches or updates that address this specific vulnerability within the Siebel Core - Server Framework. Network-level protections such as firewalls, intrusion detection systems, and web application firewalls should be configured to monitor and restrict access to the Siebel application services, particularly focusing on HTTP traffic that could target the vulnerable framework. Access controls should be reviewed and strengthened to ensure that only authorized personnel can access the Siebel system, with additional monitoring implemented for any unusual access patterns or data retrieval activities. Organizations should also conduct comprehensive vulnerability assessments to identify other potential weaknesses within their Siebel installations that could be exploited in conjunction with this vulnerability. The vulnerability's characteristics place it within the purview of CWE categories related to information disclosure and improper access control, making it relevant to both the Common Weakness Enumeration taxonomy and the MITRE ATT&CK framework's tactics related to credential access and defense evasion. Regular security monitoring and incident response procedures should be enhanced to detect potential exploitation attempts, as the vulnerability's low privilege requirement and network accessibility make it a prime target for automated attack tools commonly used in modern threat landscapes.