CVE:CVE-2019-1968
CNNVD:CNNVD-201908-2137
Cisco NX-OS Software是美国思科（Cisco）公司的一套交换机使用的数据中心级操作系统软件。
Cisco NX-OS Software中的NX-API功能存在输入验证错误漏洞，该漏洞源于程序没有正确验证发送到NX-API的请求的HTTP头。远程攻击者可通过发送特制的HTTP请求利用该漏洞造成拒绝服务。以下产品及版本受到影响：Cisco MDS 9000 Series Multilayer Switches；Nexus 3000 Series Switches；Nexus 3500 Platform Switches；Nexus 3600 Platform Switches；Nexus 5500 Platform Switches；Nexus 5600 Platform Switches；Nexus 6000 Series Switches；Nexus 7000 Series Switches；Nexus 7700 Series Switches；Nexus 9000 Series Switches（standalone NX-OS mode）；Nexus 9500 R-Series Switching Platform。
solution:Upgrade cisco nx-os to a higher version than 7.3,8.1,8.2,8.3,6.1(2i2,6.1(2i3,7.0(3i4,7.0(3i7,9.2,6.0(2a8,7.0(3f,7.1,7.2,8.0,and avoid the version 7.3,8.1,8.2,8.3,6.1(2)i2,6.1(2)i3,7.0(3)i4,7.0(3)i7,9.2,6.0(2)a8,7.0(3)f,7.1,7.2,8.0