CVE:CVE-2020-3299
CNNVD:CNNVD-202010-1142
Cisco Firepower Threat Defense（FTD）等都是美国思科（Cisco）公司的产品。Cisco Firepower Threat Defense是一套提供下一代防火墙服务的统一软件。Cisco 3000 Series Industrial Security Appliances是3000系列工业防火墙。Cisco 4000 Series Integrated Services Routers（ISRS）是4000系列企业级多业务路由器。
多个Cisco产品存在安全漏洞，该漏洞源于Snort detection engine 错误地检测到在分组响应中使用的修改HTTP数据包，攻击者可利用该漏洞绕过已配置的HTTP文件策略。以下产品及版本受到影响：1000 Series Integrated Services Routers (ISRs)，3000 Series Industrial Security Appliances (ISAs)，4000 Series Integrated Services Routers (ISRs)，Cloud Services Router 1000V，Firepower Threat Defense (FTD) Software，Integrated Services Virtual Router (ISRv)，Meraki MX Series Security Appliances1
solution:Upgrade cisco firepower_threat_defense to a higher version than 6.3.0.1,and avoid the version [6.0.0,6.3.0.1); Upgrade snort snort to a higher version than 2.9.13.1,and avoid the version (,2.9.13.1)