National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-12249 Detail

Current Description

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 the affected system. This vulnerability affects Cisco Meeting Server (CMS) deployments that are running a CMS Software release prior to Release 2.0.16, 2.1.11, or 2.2.6. Cisco Bug IDs: CSCvf51127.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 9.1 CRITICAL
Vector: AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H (V3 legend)
Impact Score: 6.0
Exploitability Score: 2.3


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 9.0 HIGH
Vector: (AV:N/AC:L/Au:S/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 8.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): Single
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/100821 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039357 Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170913-cmsturn Vendor Advisory

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:cisco:meeting_server:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
2.0.15
 cpe:2.3:a:cisco:meeting_server:2.1.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:meeting_server:2.1.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:meeting_server:2.1.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:meeting_server:2.1.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:meeting_server:2.1.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:meeting_server:2.1.5:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:meeting_server:2.1.6:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:meeting_server:2.1.7:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:meeting_server:2.1.8:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:meeting_server:2.1.9:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:meeting_server:2.1.10:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:meeting_server:2.2.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:meeting_server:2.2.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:meeting_server:2.2.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:meeting_server:2.2.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:meeting_server:2.2.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:meeting_server:2.2.5:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-12249
NVD Published Date:
09/13/2017
NVD Last Modified:
09/28/2017