IntelliShield has updated this alert to indicate that software updates are available for the Cisco Unified Communications Manager role bypass vulnerability.
A vulnerability in the administration portal of Cisco Unified Communications Manager (Unified CM) could allow an authenticated, remote attacker to bypass role restrictions.
The vulnerability is due to insufficient role restriction processing. An attacker could exploit this vulnerability by revisiting the link to a previously denied location of the administration portal. An exploit could allow the attacker to access sections of the administration portal to which the attacker does not have role-based access.
Cisco has confirmed the vulnerability in a security notice and released software updates.
At the time this alert was first published, Cisco Unified CM versions 9.1(2.10000.28) and prior were vulnerable. Later releases of Cisco Unified CM may also be vulnerable.
To exploit this vulnerability, an attacker must authenticate to a targeted device. This access requirement reduces the likelihood of a successful exploit.
Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.
Cisco has released a security notice at the following link: CVE-2014-0657
Customers are advised to consult Cisco bug ID CSCuj83540 for the most complete list of affected product versions.
An authenticated, remote attacker could exploit this vulnerability to bypass role restrictions on a targeted device. A successful exploit could be leveraged to conduct further attacks.
The vulnerability is due to insufficient role restriction processing by the administration portal of an affected device.
An authenticated, remote attacker could exploit this vulnerability by revisiting the link to a previously denied location of the administration portal. An exploit could allow the attacker to access sections of the administration portal to which the attacker does not have role-based access.
Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to have network access.
Administrators are advised to monitor affected systems.
Cisco customers with active contracts should contact their Cisco support team for assistance in upgrading to a software version that includes fixes for this vulnerability. Cisco customers without contracts may contact the Cisco Technical Assistance Center at 1-800-553-2447 or 1-408-526-7209 or via email at email@example.com for assistance.
Version 1, January 7, 2014, 3:43 PM: Cisco Unified Communications Manager contains a vulnerability that could allow an authenticated, remote attacker to bypass security restrictions. Updates are not available.
The security vulnerability applies to the following combinations of products.
Cisco Unified Communications Manager
8.6 Base, .1, .2 | 9.0 Base | 9.0(1) Base | 9.1 Base, .2 | 9.1(1) Base | 9.1(2.10000.28) Base
Alerts and bulletins on the Cisco Security Intelligence Operations Portal are highlighted by analysts in the
Cisco Threat Operations Center and represent a subset of the comprehensive content that is available through Cisco Security IntelliShield Alert Manager Service.
This customizable threat and vulnerability alert service provides security staff with access to timely, accurate, and credible information about threats and vulnerabilities that may affect their environment.
The urgency and severity ratings of this alert are not tailored to individual users; users may value alerts differently based upon their network configurations and circumstances. THE ALERT, AND INFORMATION CONTAINED THEREIN, ARE PROVIDED ON AN "AS IS" BASIS AND DO NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE ALERT, AND INFORMATION CONTAINED THEREIN, OR MATERIALS LINKED FROM THE ALERT, IS AT YOUR OWN RISK. INFORMATION IN THIS ALERT AND ANY RELATED COMMUNICATIONS IS BASED ON OUR KNOWLEDGE AT THE TIME OF PUBLICATION AND IS SUBJECT TO CHANGE WITHOUT NOTICE. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE ALERTS AT ANY TIME.