CVE-2017-2184 in Home Spot Cube2
Summary
by MITRE
Buffer overflow in HOME SPOT CUBE2 firmware V101 and earlier allows an attacker to execute arbitrary code via WebUI.
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Analysis
by VulDB Data Team • 12/31/2020
The vulnerability identified as CVE-2017-2184 represents a critical buffer overflow flaw within the HOME SPOT CUBE2 firmware version 101 and earlier releases. This security weakness resides in the device's web user interface implementation, creating an exploitable condition that enables remote code execution attacks. The buffer overflow occurs when the firmware processes input data through the web interface, specifically during handling of user-supplied parameters that exceed allocated memory boundaries. This flaw fundamentally compromises the device's integrity and provides attackers with unauthorized access to execute malicious code within the device's operational environment.
The technical nature of this vulnerability aligns with CWE-121, which describes stack-based buffer overflow conditions where insufficient bounds checking allows attackers to overwrite adjacent memory locations. The web interface serves as the attack vector, making the exploit accessible over network connections without requiring physical access to the device. Attackers can craft malicious input parameters that cause the firmware to write beyond allocated buffer space, potentially overwriting critical program execution elements such as return addresses or function pointers. This memory corruption enables attackers to redirect program flow and execute arbitrary code with the privileges of the web server process.
The operational impact of this vulnerability extends beyond simple remote code execution, as it provides attackers with persistent access to the network-connected device. Once exploited, attackers can establish backdoors, modify device configurations, intercept network traffic, or use the compromised device as a pivot point for attacking other systems within the same network segment. The vulnerability affects devices that are commonly deployed in residential and small office environments, making them attractive targets for cybercriminals seeking to establish persistent network footholds. The lack of authentication requirements for certain web interface functions exacerbates the risk, as attackers may be able to exploit the vulnerability without prior authorization.
Mitigation strategies for CVE-2017-2184 should prioritize firmware updates from the manufacturer, as version 102 and subsequent releases contain patches addressing the buffer overflow condition. Network segmentation and access control measures can help limit the potential impact of exploitation by restricting network access to the affected device. Implementing web application firewalls and monitoring for unusual network traffic patterns can aid in detecting exploitation attempts. Regular security assessments and vulnerability scanning should be conducted to identify similar issues in other networked devices. Organizations should also consider disabling unnecessary web interface access and implementing strong authentication mechanisms to reduce the attack surface. The vulnerability demonstrates the importance of secure coding practices and proper input validation in embedded systems, aligning with ATT&CK technique T1059 for command and script interpreter execution, where attackers leverage such vulnerabilities to establish persistent access and execute malicious commands within compromised environments.