CVE-2018-11560 in HD IP Camera White 2864-222
Summary
by MITRE
The webService binary on Insteon HD IP Camera White 2864-222 devices has a stack-based Buffer Overflow leading to Control-Flow Hijacking via a crafted usr key, as demonstrated by a long remoteIp parameter to cgi-bin/CGIProxy.fcgi on port 34100.
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Analysis
by VulDB Data Team • 02/21/2020
The vulnerability identified as CVE-2018-11560 affects Insteon HD IP Camera White 2864-222 devices where the webService binary contains a stack-based buffer overflow flaw. This issue manifests through the cgi-bin/CGIProxy.fcgi interface on port 34100, specifically when processing a crafted usr key parameter that includes an excessively long remoteIp value. The vulnerability resides in the device's web service component that handles network communication requests, making it accessible over the network interface.
The technical exploitation of this buffer overflow occurs when an attacker sends a specially crafted HTTP request containing an overly long remoteIp parameter value that exceeds the allocated buffer space in the webService binary. This condition causes the program to overwrite adjacent memory locations on the stack, potentially allowing an attacker to manipulate the instruction pointer and redirect program execution flow. The vulnerability is classified as a stack-based buffer overflow under CWE-121, which represents a fundamental memory safety issue where insufficient bounds checking allows data to overwrite adjacent stack variables.
The operational impact of this vulnerability is significant as it enables remote code execution capabilities and control-flow hijacking without requiring authentication. An attacker can leverage this flaw to gain unauthorized access to the device's operating system, potentially leading to full system compromise, data exfiltration, or use of the device as a pivot point for attacks on other networked systems. The vulnerability affects devices that are typically deployed in residential and commercial security environments, making them attractive targets for cybercriminals seeking to compromise surveillance infrastructure.
Security professionals should implement immediate mitigations including network segmentation to isolate affected devices from critical network segments, disabling unnecessary network services, and applying firmware updates from the vendor when available. The vulnerability aligns with ATT&CK technique T1210 for exploitation of remote services and T1059 for command and scripting interpreter usage. Organizations should also consider network monitoring to detect anomalous traffic patterns associated with exploitation attempts, particularly on port 34100 where the CGIProxy.fcgi interface operates. Device administrators should conduct regular security assessments and maintain updated inventories of networked devices to identify and remediate similar vulnerabilities across their infrastructure.