Cisco Unified Computing System Software contains a vulnerability that could allow an unauthenticated, remote attacker to conduct man-in-the-middle attacks. Updates are not available.
A vulnerability in the management interface of the Cisco Unified Computing System could
allow an unauthenticated, remote attacker to perform a man-in-the-middle
The vulnerability is due to improper identity validation of vCenter management consoles. An attacker could exploit this
vulnerability by spoofing their identity and inserting themselves
between the vCenter console and the Cisco Unified Computing System
Manager. A successful exploit will allow the attacker to collect and
modify data sent between the devices.
Cisco has confirmed the vulnerability in a security notice; however, software updates are not available.
At the time this alert was first published, Cisco Unified Computing System versions 2.2 and prior were vulnerable. Later releases of Cisco Unified Computing System may also be vulnerable.
To exploit this vulnerability, an attacker must be able to conduct a spoofing attack against the vCenter console to obtain the identity of the console. In addition, it is likely that an attacker would need access to trusted internal networks to be positioned between the vCenter console and an affected device. These conditions make it unlikely for an attacker to achieve 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-2012-4092
Customers are advised to consult Cisco bug ID CSCtk00683 for the most complete list of affected product versions.
An unauthenticated, remote attacker could exploit this vulnerability to gain access or modify sensitive information on communication between the vCenter console and the Cisco Unified Computing System Manager. Successful exploitation could be leveraged to conduct further attacks.
The vulnerability is due to improper identity validation of vCenter management consoles by an affected device.
An unauthenticated, remote attacker could exploit this vulnerability by spoofing the identity of a vCenter console and inserting themselves between the vCenter console and the Cisco Unified Computing System Manager. A successful exploit will allow the attacker to collect and modify data sent between the devices, which could be leveraged to conduct further attacks.
Administrators are advised to contact the vendor regarding future updates and releases.
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.
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.