A vulnerability in Cisco WebEx Training Center could allow an unauthenticated, remote attacker to gather the registration ID of other users.
The vulnerability is due to inappropriate disclosure of sensitive information to unauthenticated users. An attacker could exploit this vulnerability by sending a crafted URL request to a vulnerable server.
Cisco has confirmed the vulnerability in a security notice; however, software updates are not available.
To exploit the vulnerability, the attacker may provide a link that directs a user to a malicious site and use misleading language or instructions to persuade the user to follow the provided link.
Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.
Customers are advised to consult Cisco bug ID CSCul57121 for the most complete list of affected product versions.
Administrators are advised to contact the vendor regarding future updates and releases.
Users are advised not to visit websites or follow links that have suspicious characteristics or cannot be verified as safe.
Administrators are advised to monitor affected systems.
Software updates are not available.
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.
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.
Version Description Section Status Date 1.0 Initial Release NA Final 2013-Dec-13
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