CVE-2016-1317

Vulnerability

An information disclosure vulnerability exists in the web framework of Cisco Unified Communications Manager version 11.5(0.98000.480) [1]. The flaw arises from insufficient protection of database tables, allowing them to be accessed directly via a specific URL [1]. The vulnerability is assigned Cisco Bug IDs CSCuy11098 and CSCvb17829 [1].

Exploitation

An attacker must be an authenticated remote user with network access to the affected Cisco Unified Communications Manager system [1]. The attacker can exploit the vulnerability by browsing to an unspecified URL that directly queries the database, which reveals entity and table names in the response [1]. No special privileges beyond standard user access are required; the attacker simply issues a direct HTTP request to the vulnerable endpoint.

Impact

Successful exploitation allows the attacker to obtain sensitive information, specifically database table names and entity names [1]. This information disclosure could aid an adversary in understanding the underlying data structure and potentially enable further attacks against the system. The confidentiality of system metadata is compromised, but no direct code execution or data modification is achieved [1].

Mitigation

As of the advisory publication date (February 8, 2016), Cisco had not released software updates to address this vulnerability [1]. No workarounds are available [1]. The only recommended mitigation is to monitor for updates from Cisco or restrict access to the affected system to trusted users only. No advisory has since indicated a fixed release as of the advisory's final status [1].