CVE-2017-12249
CriticalSummary
A vulnerability in the TURN server included with Cisco Meeting Server (CMS) could allow an authenticated, remote attacker to gain unauthorized access to components or sensitive information in an affected system. The issue is due to an incorrect default configuration of the TURN server, which could expose internal interfaces and ports.
Risk Assessment
The organization may be at risk of unauthorized access to critical components, such as Call Bridge or database clusters, potentially leading to the leakage of sensitive meeting information.
Recommendation
It is recommended to review and improve the configuration of the TURN server to secure internal interfaces and ports against unauthorized access.
Original NVD description (English source)
A vulnerability in the Traversal Using Relay NAT (TURN) server included with Cisco Meeting Server (CMS) could allow an authenticated, remote attacker to gain unauthenticated or unauthorized access to components of or sensitive information in an affected system. The vulnerability is due to an incorrect default configuration of the TURN server, which could expose internal interfaces and ports on the external interface of an affected system. An attacker could exploit this vulnerability by using a TURN server to perform an unauthorized connection to a Call Bridge, a Web Bridge, or a database cluster in an affected system, depending on the deployment model and CMS services in use. A successful exploit could allow the attacker to gain unauthenticated access to a Call Bridge or database cluster in an affected system or gain unauthorized access to sensitive meeting information in an affected system. To exploit this vulnerability, the attacker must have valid credentials for the TURN server of