CVE:CVE-2020-8187
CNNVD:CNNVD-202007-363
Citrix Systems Citrix Application Delivery Controller（ADC）和Citrix Systems Gateway（Citrix Systems NetScaler Gateway）都是美国思杰系统（Citrix Systems）公司的产品。Citrix Application Delivery Controller是一款应用交付控制器。该产品具有应用交付控制和负载均衡等功能。Citrix Systems Gateway是一套安全的远程接入解决方案。该产品可为管理员提供应用级和数据级管控功能，以实现用户从任何地点远程访问应用和数据。
Citrix Systems Citrix Application Delivery Controller和Citrix Systems Gateway 11.1-63.9之前版本和12.0-62.10之前版本中存在输入验证错误漏洞。攻击者可利用该漏洞造成拒绝服务。
solution:Upgrade citrix application_delivery_controller_firmware to a higher version than 11.1-63.9,12.0-62.10,and avoid the version [11.1,11.1-63.9),[12.0,12.0-62.10); Upgrade citrix netscaler_gateway_firmware to a higher version than 11.1-63.9,12.0-62.10,and avoid the version [11.1,11.1-63.9),[12.0,12.0-62.10)