CVE-2018-3126 in Retail Xstore Point of Service
Summary
by MITRE
Vulnerability in the Oracle Retail Xstore Point of Service component of Oracle Retail Applications (subcomponent: Xenvironment). Supported versions that are affected are 15.0.2, 16.0.4 and 17.0.2. Difficult to exploit vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle Retail Xstore Point of Service. Successful attacks of this vulnerability can result in takeover of Oracle Retail Xstore Point of Service. CVSS 3.0 Base Score 6.6 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H).
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Analysis
by VulDB Data Team • 05/29/2023
The vulnerability identified as CVE-2018-3126 resides within the Oracle Retail Xstore Point of Service component, specifically within the Xenvironment subcomponent of Oracle Retail Applications. This security flaw affects versions 15.0.2, 16.0.4, and 17.0.2, representing a significant risk to retail organizations that depend on these systems for their point-of-sale operations. The vulnerability classification as difficult to exploit indicates that while the attack vector requires some level of sophistication, the potential impact makes it a serious concern for organizations operating in retail environments where point-of-sale systems handle sensitive customer data and financial transactions.
The technical nature of this vulnerability stems from insufficient access controls and authentication mechanisms within the Xstore Point of Service system. Attackers with high privileges and network access via HTTP can exploit this weakness to gain complete control over the affected system. The CVSS 3.0 score of 6.6 reflects the severity of the potential impact, with high scores across all three impact metrics: confidentiality, integrity, and availability. This means that successful exploitation could result in unauthorized access to sensitive data, modification of critical system information, and complete system disruption or unavailability.
The operational impact of this vulnerability extends beyond simple system compromise, as it directly affects the core functionality of retail point-of-sale operations. When an attacker gains control of the Xstore Point of Service system, they can potentially manipulate transaction data, access customer payment information, and disrupt normal business operations. The availability impact is particularly concerning in retail environments where continuous operation is critical for business continuity, as system downtime could result in significant financial losses and customer dissatisfaction. The confidentiality impact poses risks to sensitive customer data including payment card information, personal identification details, and transaction histories that organizations are legally required to protect under various compliance frameworks.
Organizations should implement immediate mitigations including network segmentation to limit access to the affected systems, implementation of strong authentication mechanisms, and regular security monitoring to detect potential exploitation attempts. The vulnerability aligns with CWE-284 (Improper Access Control) and represents a significant risk under the ATT&CK framework's privilege escalation and persistence tactics. Security teams should also consider deploying web application firewalls and conducting thorough network scans to identify any potential exploitation attempts. Regular updates and patches from Oracle should be prioritized, and organizations should review their access control policies to ensure that only authorized personnel have network access to critical retail systems. The vulnerability demonstrates the importance of maintaining up-to-date security measures and implementing defense-in-depth strategies to protect critical retail infrastructure from sophisticated attacks targeting point-of-sale systems.