Cisco SPA100 Series Analog Telephone Adapters Web Management Interface Denial of Service Vulnerability

Vulnerability Description

A vulnerability in the web-based management interface of Cisco SPA100 Series Analog Telephone Adapters (ATAs) could allow an authenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper validation of user-supplied requests to the web-based management interface. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface of an affected device. A successful exploit could allow the attacker to cause the device to stop responding, requiring manual intervention for recovery.

References

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191016-spa-webui-dos
• https://www.tenable.com/security/research/tra-2019-44