CVE:CVE-2017-12334
CNNVD:CNNVD-201711-1230
Cisco Multilayer Director Switches等都是美国思科（Cisco）公司的产品。Cisco Multilayer Director Switches是一款交换机产品。Nexus 2000 Series Fabric Extenders是一款Nexus 2000系列阵列扩展器。NX-OS System Software是使用在其中的一套操作系统。CLI是其中的一个命令行程序。
多款Cisco产品中的Cisco NX-OS System Software的CLI存在命令注入漏洞，该漏洞源于程序没有对命令参数执行充分的输入验证。本地攻击者可通过向受影响的CLI命令注入特制的命令参数利用该漏洞以root权限执行任意命令。以下产品受到影响：Cisco Multilayer Director Switches；Nexus 2000 Series Fabric Extenders；Nexus 3000 Series Switches；Nexus 3500 Platform Switches；Nexus 5000 Series 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 in standalone NX-OS mode；Nexus 9500 R-Series Line Cards和Fabric Modules；Unified Computing System Manager。
solution:Upgrade cisco nx-os to a higher version than 6.0(2a8(3,7.0(0hsk(0.357,8.1(0bd(0.20,8.1(0.59s0,8.1(1,and avoid the version 6.0(2)a8(3),7.0(0)hsk(0.357),8.1(0)bd(0.20),8.1(0.59)s0,8.1(1); Upgrade cisco unified_computing_system to a higher version than 7.0(0hsk(0.357,and avoid the version 7.0(0)hsk(0.357)