CVE-2018-12920 in Brickstream 2300
Summary
by MITRE
Brickstream 2300 devices allow remote attackers to obtain potentially sensitive information via a direct request for the basic.html#ipsettings or basic.html#datadelivery URI.
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Analysis
by VulDB Data Team • 02/23/2020
The vulnerability identified as CVE-2018-12920 affects Brickstream 2300 devices, which are network infrastructure appliances commonly used in broadcasting and telecommunications environments. This security flaw represents a critical information disclosure vulnerability that allows remote attackers to access sensitive system information without authentication. The affected devices expose web interfaces that contain configuration data and network settings through specific URI endpoints, making them susceptible to unauthorized information gathering. The vulnerability specifically impacts the basic.html web interface where the ipsettings and datadelivery URI paths are accessible to unauthenticated users.
The technical implementation of this vulnerability stems from improper access control mechanisms within the web server component of the Brickstream 2300 devices. When attackers make direct HTTP requests to the basic.html#ipsettings or basic.html#datadelivery URIs, the system fails to authenticate the user request and instead returns sensitive configuration data including network parameters, IP addresses, and potentially other system information. This represents a classic case of insecure direct object reference vulnerability where the application does not properly verify access permissions before exposing sensitive resources. The flaw falls under CWE-284 which specifically addresses improper access control issues in software applications.
The operational impact of this vulnerability is significant for organizations relying on Brickstream 2300 devices for their network infrastructure. Remote attackers can obtain detailed information about network topology, IP configurations, and potentially other system parameters that could be used to plan further attacks. This information disclosure could enable attackers to map network structures, identify vulnerable endpoints, or conduct targeted attacks against specific network segments. The exposure of network settings and configuration data could compromise the overall security posture of the affected organization, particularly in broadcast and telecommunications environments where these devices often handle critical infrastructure components.
The vulnerability aligns with several ATT&CK techniques including T1083 (File and Directory Discovery) and T1046 (Network Service Scanning) as attackers can systematically enumerate network configurations and gather intelligence about the target environment. Organizations should consider implementing network segmentation to limit access to these devices and establish monitoring for unusual access patterns to web interfaces. The security implications extend beyond simple information disclosure as this data could be leveraged for privilege escalation attempts or as part of broader reconnaissance activities. Organizations should also review their web application security configurations and ensure proper authentication mechanisms are in place for all administrative interfaces.
Mitigation strategies should include immediate firmware updates from Brickstream to address the access control flaw, implementation of network access controls to restrict unauthorized access to these devices, and deployment of web application firewalls to monitor and filter requests to sensitive URI paths. Security teams should also conduct comprehensive network assessments to identify all devices with similar vulnerabilities and establish proper monitoring for unauthorized access attempts. The vulnerability demonstrates the importance of secure configuration management and proper access control implementation in network infrastructure devices. Organizations should also implement regular security assessments and vulnerability scanning to identify similar issues in their network infrastructure components.