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 using the Omnibus Port.
vulnerability is due to the improper handling of TCP packets sent to the Omnibus Port (port 5400). An attacker could exploit
this vulnerability by sending a TCP flood to the affected port. An
exploit could allow the attacker to trigger a disk exhaustion condition which could disrupt services and cause a DoS condition on the affected system.
Cisco has confirmed the vulnerability in a security advisory and has released software updates.
Cisco Hosted Collaboration Mediation Service Assurance versions prior to 9.1 are affected.
Cisco Prime Central for HCS Assurance was formerly known as Cisco Hosted Collaboration Mediation (HCM).
To exploit this vulnerability, the attacker may require access to trusted, internal networks to conduct a TCP connection flood attack against a targeted device. 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 trigger a memory leak, which could interrupt services on an affected device, resulting in a DoS condition.
The vulnerability is due to a disk exhaustion condition that may occur when the affected software generates error logs during a TCP connection flood.
An unauthenticated, remote attacker could exploit this vulnerability by triggering a TCP connection flood attack by sending large amounts of TCP packets via TCP port 5400. If successful, the targeted device would generate error logs until the disk space is exhausted, 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
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.