CVE-2014-7897 in OLE Point of Sale Driver
Summary
by MITRE
The OLE Point of Sale (OPOS) drivers before 1.13.003 on HP Point of Sale Windows PCs allow remote attackers to execute arbitrary code via vectors involving OPOSScanner.ocx for Imaging Barcode scanners, Linear Barcode scanners, Presentation Barcode scanners, Retail Integrated Barcode scanners, Wireless Barcode scanners, and 2D Value Wireless scanners.
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Analysis
by VulDB Data Team • 05/17/2022
The vulnerability identified as CVE-2014-7897 represents a critical remote code execution flaw within HP Point of Sale systems that affects OLE Point of Sale drivers prior to version 1.13.003. This security weakness specifically targets the OPOSScanner.ocx component which serves as the core interface for various barcode scanner types including imaging barcode scanners, linear barcode scanners, presentation barcode scanners, retail integrated barcode scanners, wireless barcode scanners, and 2D value wireless scanners. The vulnerability stems from inadequate input validation and memory handling within the scanner driver architecture, creating exploitable conditions that allow remote attackers to inject and execute malicious code on affected systems. This flaw fundamentally compromises the security posture of point of sale environments where these devices are deployed, as it enables attackers to gain unauthorized system access without physical presence or local credentials.
The technical exploitation of this vulnerability occurs through manipulation of the OPOSScanner.ocx ActiveX control which is designed to facilitate communication between the point of sale software and various barcode scanning hardware. Attackers can leverage this component to craft malicious payloads that trigger buffer overflows or other memory corruption conditions within the driver code, ultimately leading to arbitrary code execution at the privilege level of the running process. The vulnerability aligns with CWE-121, which describes heap-based buffer overflow conditions, and CWE-787, which addresses out-of-bounds write vulnerabilities. These classifications indicate that the flaw allows attackers to write data beyond the bounds of allocated memory regions, potentially enabling code injection attacks that can escalate privileges and establish persistent access to target systems. The attack vector is particularly concerning as it does not require authentication or physical access to the device, making it susceptible to exploitation through network-based attacks.
The operational impact of CVE-2014-7897 extends beyond simple remote code execution, as it creates opportunities for comprehensive system compromise within retail environments. Point of sale systems are often connected to corporate networks and may contain sensitive customer data including credit card information, personal identification details, and transaction records. Successful exploitation could lead to data breaches, financial fraud, system disruption, and potential lateral movement within network infrastructures. The vulnerability affects Windows-based point of sale systems that are commonly found in retail stores, restaurants, and other commercial environments where barcode scanning is integral to operations. Organizations utilizing these systems face significant risk of unauthorized access, data exfiltration, and potential establishment of backdoors that could persist undetected for extended periods. The attack surface is further expanded by the fact that these scanners are frequently deployed in environments with limited security monitoring, making detection of exploitation activities challenging. This vulnerability also aligns with several ATT&CK techniques including T1059 for command and scripting interpreter and T1068 for exploit for privilege escalation, as attackers can leverage the initial compromise to gain elevated system privileges and expand their control.
Mitigation strategies for this vulnerability should prioritize immediate driver updates to version 1.13.003 or later, which contain patches addressing the memory handling flaws in OPOSScanner.ocx. System administrators should implement network segmentation to isolate point of sale systems from critical corporate infrastructure, reducing the potential impact of successful exploitation. Additional protective measures include disabling unnecessary ActiveX controls, implementing application whitelisting policies, and conducting regular security assessments of point of sale environments. Organizations should also establish monitoring protocols specifically designed to detect anomalous behavior in scanner communication protocols and implement intrusion detection systems capable of identifying exploitation attempts. The vulnerability underscores the importance of maintaining current security patches for specialized point of sale components and highlights the need for comprehensive vulnerability management programs that address both general system security and specialized hardware drivers. Regular security awareness training for personnel managing point of sale systems can also help identify potential social engineering attempts that might accompany technical exploitation efforts.