Cisco Prime Central for Hosted Collaboration Solution Assurance
contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service condition. Updates are available.
Cisco Prime Central for Hosted Collaboration Solution (HCS) Assurance
contains a vulnerability that could allow an unauthenticated, remote
attacker to cause a denial of service (DoS) condition.
The vulnerability is due to the improper handling of TCP packets sent to the Prime Central Ephemeral Java Port (port 44444). An attacker could exploit this vulnerability by sending a large amount of TCP packets to the affected port. A successful exploit could allow the attacker to consume all available memory and cause a DoS condition on the affected system.
Cisco has confirmed the vulnerability in a security advisory and has released software updates.
Cisco Prime Central for HCS Assurance versions prior to 9.1 are affected.
Cisco Prime Central for HCS Assurance was formerly known as Cisco Hosted Collaboration Mediation (HCM).
The attacker may require access to trusted, internal networks to conduct a TCP connection flood attack. This access limitation could limit 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.
An unauthenticated, remote attacker could exploit this vulnerability to cause an affected device to consume excessive amounts of memory resources which could prevent access to the web GUI and cause out-of-memory exceptions when executing basic commands, resulting in a DoS condition.
The vulnerability is due to excessive memory consumption while processing large amounts of TCP packets via TCP port 44444 on an affected device.
An unauthenticated, remote attacker could exploit this vulnerability by sending large amounts of TCP packets via TCP port 44444 to an affected device. Such action could allow the attacker to execute a sustained TCP flood which could exhaust memory on an affected device, resulting in a DoS condition.
Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to have network access.
Administrators can help protect affected systems from external attacks by using a solid firewall strategy.
The security vulnerability applies to the following combinations of products.
Cisco Hosted Collaboration Solution
8.6(x) Base | 9.0(x) Base
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.