Description Preview
Multiple exploitable buffer overflow vulnerabilities exist in the PubNub message handler for the "cc" channel of Insteon Hub running firmware version 1012. Specially crafted commands sent through the PubNub service can cause a stack-based buffer overflow, overwriting arbitrary data on the stack. The vulnerability occurs when the value for the "id" key is copied using strcpy to a 32-byte buffer at $sp+0x290, without proper bounds checking. By sending a value longer than 32 bytes, an attacker can cause a buffer overflow condition. This vulnerability requires the attacker to send an authenticated HTTP request to trigger the exploit.
Overview
The Insteon Hub is a home automation controller device that allows users to control various smart home devices. The vulnerability affects the PubNub message handler component of the Insteon Hub firmware version 1012. The issue stems from improper bounds checking when handling messages on the "cc" channel. Specifically, in the cmd sn_exw function at memory address 0x9d01b20c, the application uses an unsafe strcpy operation to copy user-controlled input into a fixed-size buffer of 32 bytes. An attacker who can send authenticated HTTP requests to the device can exploit this vulnerability to potentially execute arbitrary code or cause a denial of service condition by crashing the device.
Remediation
Users of affected Insteon Hub devices should:
- Update to the latest firmware version if available from the manufacturer
- If no patch is available, consider implementing network segmentation to limit access to the hub from untrusted networks
- Ensure that the Insteon Hub is not directly accessible from the internet
- Monitor for suspicious activity or unexpected behavior from the device
- Contact Insteon support for additional security guidance or patch information
References
- Cisco Talos Intelligence Group Vulnerability Report: https://talosintelligence.com/vulnerability_reports/TALOS-2017-0483
- MITRE CVE Entry: CVE-2017-16305
- The vulnerability was discovered and reported by Cisco Talos security researchers
Industry ExposureMost to leastThis section illustrates the prevalence of a specific Common Vulnerabilities and Exposures (CVE) across various industries based on customer reports. The ranking displays industries from the most to least affected by this particular vulnerability, offering valuable insight into where this CVE has been most frequently observed. This information can help organizations within these sectors prioritize their security efforts, understand their relative risk exposure compared to their peers, and focus remediation strategies where they are most needed. By understanding the industry-specific impact, organizations can make more informed decisions regarding patching, resource allocation, and overall risk management related to this CVE.
This section illustrates the prevalence of a specific Common Vulnerabilities and Exposures (CVE) across various industries based on customer reports. The ranking displays industries from the most to least affected by this particular vulnerability, offering valuable insight into where this CVE has been most frequently observed. This information can help organizations within these sectors prioritize their security efforts, understand their relative risk exposure compared to their peers, and focus remediation strategies where they are most needed. By understanding the industry-specific impact, organizations can make more informed decisions regarding patching, resource allocation, and overall risk management related to this CVE.
- Accommodation & Food ServicesAccommodation & Food Services
- Administrative, Support, Waste Management & Remediation ServicesAdministrative, Support, Waste Management & Remediation Services
- Agriculture, Forestry Fishing & HuntingAgriculture, Forestry Fishing & Hunting
- Arts, Entertainment & RecreationArts, Entertainment & Recreation
- ConstructionConstruction
- Educational ServicesEducational Services
- Finance and InsuranceFinance and Insurance
- Health Care & Social AssistanceHealth Care & Social Assistance
- InformationInformation
- Management of Companies & EnterprisesManagement of Companies & Enterprises
- ManufacturingManufacturing
- MiningMining
- Other Services (except Public Administration)Other Services (except Public Administration)
- Professional, Scientific, & Technical ServicesProfessional, Scientific, & Technical Services
- Public AdministrationPublic Administration
- Real Estate Rental & LeasingReal Estate Rental & Leasing
- Retail TradeRetail Trade
- Transportation & WarehousingTransportation & Warehousing
- UtilitiesUtilities
- Wholesale TradeWholesale Trade
