Cisco Security Advisory
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AV:N/AC:M/Au:N/C:P/I:N/A:N/E:H/RL:OF/RC:C
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A vulnerability in Cisco WebEx Meetings could allow an unauthenticated, remote attacker to discover the meeting access number.
The vulnerability is due to the inclusion of sensitive information in URLs. An attacker could exploit this vulnerability by accessing the web page containing meeting registration information. An exploit could allow the attacker to connect to a WebEx meeting without registering to attend.
Cisco has confirmed the vulnerability and released software updates.
To exploit this vulnerability, an attacker must first be able to access the web page containing meeting registration information from a targeted device. The attacker may try to acquire this information via social engineering techniques from a targeted user.
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Cisco has released bug ID CSCus62147 for registered users, which contains additional details and an up-to-date list of affected product versions.
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Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to have network access.
Administrators may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.
Administrators are advised to monitor affected systems.
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Cisco customers with active contracts can obtain updates through the Software Center at the following link: Cisco. Cisco customers without contracts can obtain upgrades by contacting the Cisco Technical Assistance Center at 1-800-553-2447 or 1-408-526-7209 or via email at tac@cisco.com.
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The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
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To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
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Show LessVersion Description Section Status Date 1.0 Initial Release NA Final 2015-Jun-22
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