CVE-2016-1316 in TelePresence Video Communication Server
Summary
by MITRE
Cisco TelePresence Video Communication Server (VCS) X8.1 through X8.7, as used in conjunction with Jabber Guest, allows remote attackers to obtain sensitive call-statistics information via a direct request to an unspecified URL, aka Bug ID CSCux73362.
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Analysis
by VulDB Data Team • 07/07/2022
The vulnerability described in CVE-2016-1316 affects Cisco TelePresence Video Communication Server (VCS) versions X8.1 through X8.7 when integrated with Jabber Guest functionality. This issue represents a critical information disclosure weakness that enables remote attackers to access sensitive call-statistics data through direct URL manipulation. The vulnerability specifically resides in the web interface component of the VCS system, where improper access controls fail to validate user permissions before serving sensitive operational data. Attackers can exploit this flaw by crafting specific HTTP requests to unspecified URLs within the system's web application interface, bypassing normal authentication and authorization mechanisms that should protect confidential telepresence communication metrics.
The technical exploitation of this vulnerability occurs through unauthenticated direct requests to internal web service endpoints that should only be accessible to authorized administrative users. This type of flaw falls under the category of improper access control as defined by CWE-285, where the system fails to properly enforce access restrictions on sensitive resources. The vulnerability enables attackers to gather detailed call statistics including connection logs, participant information, call duration data, and potentially other operational metrics that could reveal network topology, user behavior patterns, and communication trends. Such information disclosure can provide adversaries with valuable intelligence for planning more sophisticated attacks against the organization's communication infrastructure.
The operational impact of this vulnerability extends beyond simple data exposure, as the collected call statistics could reveal critical business intelligence about communication patterns, user schedules, and network usage. Attackers could potentially identify high-value targets, map communication relationships within the organization, and correlate this information with other reconnaissance activities. The vulnerability affects organizations using Cisco TelePresence solutions in enterprise environments where communication security is paramount, making it particularly dangerous for companies with sensitive data handling requirements. The exposure of call statistics could also violate compliance requirements in regulated industries where communication monitoring and privacy controls are mandatory.
Mitigation strategies for CVE-2016-1316 should include immediate implementation of the vendor-provided security patches and updates released for affected VCS versions. Organizations should also implement network segmentation to isolate the VCS components from untrusted networks and apply web application firewalls to monitor and filter incoming requests to the affected URL endpoints. Access controls should be strengthened through proper authentication enforcement and regular security audits of web application interfaces. The vulnerability demonstrates the importance of secure configuration management and continuous monitoring of network services, as outlined in the ATT&CK framework's privilege escalation and credential access techniques. Additionally, organizations should conduct thorough vulnerability assessments of their telepresence and collaboration systems to identify similar access control weaknesses that could be exploited by threat actors.