CVE-2011-2077 in MediaCAST
Summary
by MITRE
The default configuration of the New Atlanta BlueDragon administrative interface in MediaCAST 8 and earlier enables external TCP connections to port 10000, instead of connections only from 127.0.0.1, which makes it easier for remote attackers to have an unspecified impact via a TCP session.
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Analysis
by VulDB Data Team • 02/09/2019
The vulnerability identified as CVE-2011-2077 resides within the MediaCAST 8 and earlier versions of the New Atlanta BlueDragon administrative interface, representing a critical configuration flaw that undermines fundamental network security principles. This issue manifests through the default settings of the administrative interface which fail to properly restrict network access to the designated management port 10000, thereby creating an unintended attack surface that exposes sensitive administrative functions to external network entities. The flaw directly violates the principle of least privilege and network segmentation, as the interface should only accept connections from the local loopback address 127.0.0.1 to ensure that administrative access remains restricted to the local system.
The technical implementation of this vulnerability stems from the improper default configuration where the BlueDragon administrative interface listens on all available network interfaces rather than binding exclusively to the localhost interface. This misconfiguration allows remote attackers to establish TCP sessions directly to port 10000 without proper authentication or authorization mechanisms, creating multiple potential attack vectors for exploitation. The vulnerability can be categorized under CWE-284, which specifically addresses improper access control, and more broadly under CWE-668, which covers exposure of resource to the wrong sphere. The flaw enables attackers to potentially gain unauthorized access to administrative functions through unencrypted TCP connections, making it particularly dangerous in environments where network traffic is not properly secured or monitored.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it provides attackers with the capability to perform unspecified but potentially severe actions through the administrative interface. Attackers could leverage this exposure to manipulate system configurations, access sensitive data, or potentially execute arbitrary commands depending on the administrative interface's capabilities. The vulnerability's impact is amplified by the fact that it affects the administrative interface of a media delivery system, potentially allowing attackers to disrupt content delivery services or compromise the entire media infrastructure. This aligns with ATT&CK technique T1078 which covers valid accounts usage, and T1046 which addresses network service scanning, as the vulnerability enables both unauthorized access and reconnaissance activities.
Mitigation strategies for CVE-2011-2077 should focus on immediate configuration adjustments to restrict network access to the administrative interface. System administrators must ensure that the BlueDragon administrative interface is configured to only accept connections from 127.0.0.1, effectively isolating administrative functions from external network access. This can be achieved through proper firewall rules, network configuration changes, or application-level binding restrictions. Additionally, organizations should implement comprehensive network monitoring to detect unauthorized access attempts to the administrative port, and consider implementing additional authentication mechanisms beyond the default configuration. The vulnerability highlights the importance of secure configuration management and regular security audits to identify and remediate similar exposure issues in network services and applications.