CVE-2020-3164— Cisco ESA, Cisco WSA, and Cisco SMA GUI Denial of Service Vulnerability

Cisco ESA, Cisco WSA, and Cisco SMA GUI Denial of Service Vulnerability

A vulnerability in the web-based management interface of Cisco AsyncOS for Cisco Email Security Appliance (ESA), Cisco Web Security Appliance (WSA), and Cisco Content Security Management Appliance (SMA) could allow an unauthenticated remote attacker to cause high CPU usage on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of specific HTTP request headers. An attacker could exploit this vulnerability by sending a malformed HTTP request to an affected device. A successful exploit could allow the attacker to trigger a prolonged status of high CPU utilization relative to the GUI process(es). Upon successful exploitation of this vulnerability, an affected device will still be operative, but its response time and overall performance may be degraded.

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输入验证不恰当

多款Cisco产品AsyncOS输入验证错误漏洞

Cisco Content Security Management Appliance（SMA）等都是美国思科（Cisco）公司的产品。Cisco Content Security Management Appliance是一套内容安全管理设备。该设备主要用于管理电子邮件和Web安全设备的所有策略、报告、审计信息等。AsyncOS Software是运行在其中的一套操作系统。Cisco Email Security Appliance是一个电子邮件安全设备。Cisco Web Security Appli

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