cisco-sa-20190417-ces-tvcs-dos: Cisco Expressway Series and Cisco TelePresence Video Communication Server Denial of Service Vulnerability
First published: Wed Apr 17 2019(Updated: )
A vulnerability in the XML API of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker to cause the CPU to increase to 100% utilization, causing a denial of service (DoS) condition on an affected system. The vulnerability is due to improper handling of the XML input. An attacker could exploit this vulnerability by sending a specifically crafted XML payload. A successful exploit could allow the attacker to exhaust CPU resources, resulting in a DoS condition until the system is manually rebooted. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-ces-tvcs-dos
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Expressway | ||
| Cisco TelePresence Video Communication Server Firmware |
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Reference Links
Frequently Asked Questions
What is the severity of cisco-sa-20190417-ces-tvcs-dos?
The severity of cisco-sa-20190417-ces-tvcs-dos is high due to its potential to cause a denial of service condition.
How do I fix cisco-sa-20190417-ces-tvcs-dos?
To fix cisco-sa-20190417-ces-tvcs-dos, update your Cisco Expressway Series and TelePresence Video Communication Server to the latest firmware version released by Cisco.
What type of attack does cisco-sa-20190417-ces-tvcs-dos enable?
cisco-sa-20190417-ces-tvcs-dos enables authenticated remote attackers to overload the CPU, leading to a denial of service.
Which Cisco products are affected by cisco-sa-20190417-ces-tvcs-dos?
The affected Cisco products include the Cisco Expressway Series and the Cisco TelePresence Video Communication Server.
What is the impact of cisco-sa-20190417-ces-tvcs-dos on systems?
The impact of cisco-sa-20190417-ces-tvcs-dos can cause the affected systems' CPU utilization to spike to 100%, resulting in service disruption.
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