CVE-2023-49722 in BCC101
Summary
by MITRE • 01/09/2024
Network port 8899 open in WiFi firmware of BCC101/BCC102/BCC50 products, that allows an attacker to connect to the device via same WiFi network.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 01/26/2024
The vulnerability identified as CVE-2023-49722 represents a significant security weakness in the WiFi firmware of BCC101/BCC102/BCC50 network devices. This flaw manifests through an unsecured network port that remains accessible within the device's firmware implementation, creating an attack surface that can be exploited by malicious actors within the same wireless network segment. The vulnerability specifically affects devices that operate using the BCC101/BCC102/BCC50 product line, which are typically consumer or enterprise networking equipment designed to provide wireless connectivity and network management functions. The exposed port 8899 operates as a persistent entry point that remains active regardless of the device's intended operational security posture.
The technical implementation of this vulnerability stems from inadequate firmware security controls that fail to properly restrict access to administrative or diagnostic interfaces. The port 8899 serves as an unauthorized communication channel that bypasses normal authentication mechanisms and access controls typically implemented within network device firmware. This represents a violation of fundamental security principles that require proper network segmentation and access control enforcement. The flaw operates at the network protocol level, allowing attackers to establish connections without proper credentials or authorization, effectively creating a backdoor access mechanism within the device's operational framework. This type of vulnerability aligns with CWE-284, which addresses improper access control in software implementations, and reflects poor privilege management within embedded systems.
The operational impact of this vulnerability extends beyond simple network access, as it enables attackers to potentially gain unauthorized control over device functions, access sensitive configuration data, or establish persistent access points within the network infrastructure. An attacker positioned within the same WiFi network segment can exploit this vulnerability to perform reconnaissance activities, manipulate device settings, or potentially use the compromised device as a pivot point for further network exploration. The vulnerability's exploitation requires minimal network proximity but provides substantial access privileges that could compromise the entire network ecosystem. This represents a critical risk for enterprise environments where wireless network segmentation is not properly enforced, as the attack vector can be leveraged to escalate privileges and move laterally within the network.
Security mitigations for this vulnerability should focus on immediate firmware updates provided by the vendor, which typically include disabling the exposed port or implementing proper authentication controls. Network administrators should consider implementing additional network segmentation measures, such as wireless network isolation or access control lists that prevent unauthorized communication between network segments. The implementation of network monitoring solutions that can detect unusual traffic patterns on port 8899 can serve as an early warning system for potential exploitation attempts. Organizations should also conduct comprehensive network assessments to identify other devices that may be similarly affected and implement proper network access controls that align with the principle of least privilege. This vulnerability demonstrates the importance of secure firmware development practices and adherence to cybersecurity frameworks that emphasize secure network design and implementation. The attack surface reduction techniques recommended by ATT&CK framework include limiting network exposure and implementing proper network segmentation to prevent lateral movement once an initial compromise has occurred.