critical
9.1
CWE
668 16
Advisory Published
Updated

CVE-2017-12249

First published: Wed Sep 13 2017(Updated: )

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.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco Webex Meetings Server<=2.0.15
Cisco Webex Meetings Server=2.1.0
Cisco Webex Meetings Server=2.1.1
Cisco Webex Meetings Server=2.1.2
Cisco Webex Meetings Server=2.1.3
Cisco Webex Meetings Server=2.1.4
Cisco Webex Meetings Server=2.1.5
Cisco Webex Meetings Server=2.1.6
Cisco Webex Meetings Server=2.1.7
Cisco Webex Meetings Server=2.1.8
Cisco Webex Meetings Server=2.1.9
Cisco Webex Meetings Server=2.1.10
Cisco Webex Meetings Server=2.2.0
Cisco Webex Meetings Server=2.2.1
Cisco Webex Meetings Server=2.2.2
Cisco Webex Meetings Server=2.2.3
Cisco Webex Meetings Server=2.2.4
Cisco Webex Meetings Server=2.2.5

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2017-12249?

    CVE-2017-12249 is rated as a high severity vulnerability that could lead to unauthorized access.

  • How do I fix CVE-2017-12249?

    To mitigate CVE-2017-12249, update your Cisco Meeting Server to a version above 2.0.15 or apply appropriate patches.

  • Which versions of Cisco Meeting Server are affected by CVE-2017-12249?

    CVE-2017-12249 affects all versions of Cisco Meeting Server up to and including 2.0.15 and specific versions from 2.1.0 to 2.2.5.

  • Can CVE-2017-12249 be exploited remotely?

    Yes, CVE-2017-12249 can be exploited by an authenticated remote attacker.

  • What kind of access can be gained through CVE-2017-12249?

    Exploitation of CVE-2017-12249 could allow an attacker to access sensitive information or components unauthorized.

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