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Cisco Security Advisory: Cisco WebEx Meetings Server Information Disclosure Vulnerability

Advisory ID: cisco-sa-20170510-cwms

Revision: 1.0

For Public Release: 2017 May 10 16:00 GMT

Last Updated: 2017 May 10 16:00 GMT

CVE ID(s): CVE-2017-6651

CVSS Score v(3): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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Summary
=======
A vulnerability in Cisco WebEx Meetings Server could allow unauthenticated, remote attackers to gain information that could allow them to access scheduled customer meetings.

The vulnerability is due to an incomplete configuration of the robots.txt file on customer-hosted WebEx solutions and occurs when the Short URL functionality is not activated. All releases of Cisco WebEx Meetings Server later than release 2.5MR4 provide this functionality.

An attacker could exploit this vulnerability via an exposed parameter to search for indexed meeting information. A successful exploit could allow the attacker to obtain scheduled meeting information and potentially allow the attacker to attend scheduled, customer meetings.

Cisco has released software updates that address this vulnerability. Workarounds are available to address this vulnerability. This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170510-cwms [“https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170510-cwms”]

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