A vulnerability in the training center registration page of Cisco WebEx Training Center could allow an unauthenticated, remote attacker to attend the audio conference for a training session without having to confirm the email address. The vulnerability is due to the disclosure of the training session information URL before registration is complete. An attacker could exploit this vulnerability by gathering the training session access code and password from the disclosed URL and using the information to join the audio conference for a training session without receiving the registration email. Cisco has confirmed the vulnerability in a security notice; however, software updates are not available. To exploit this vulnerability, it is likely that an attacker would need access to the training session URL prior to an exploit attempt. In a typical enterprise environment, the training session URL would originate from a device located on a trusted, internal network, reducing the possibility of a successful attack. Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly 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 |
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.
A stand-alone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy, and may lack important information or contain factual errors. The information in this document is intended for end-users of Cisco products.
Vulmon