CVE:CVE-2021-34744
CNNVD:CNNVD-202110-297
Cisco Business 220 Series Smart Switches是美国思科（Cisco）公司的一系列智能交换机。用于在有限预算范围内构建可靠的企业网络。
Cisco Business 220 Series Smart Switches 固件中存在信任管理问题漏洞，该漏洞源于固件映像中使用了静态加密密钥。攻击者可利用该漏洞访问受影响设备上的敏感信息。
solution:Upgrade cisco business_220-8t-e-2g_firmware to a higher version than 1.2.0.6,and avoid the version (,1.2.0.6]; Upgrade cisco business_220-8p-e-2g_firmware to a higher version than 1.2.0.6,and avoid the version (,1.2.0.6]; Upgrade cisco business_220-8fp-e-2g_firmware to a higher version than 1.2.0.6,and avoid the version (,1.2.0.6]; Upgrade cisco business_220-16t-2g_firmware to a higher version than 1.2.0.6,and avoid the version (,1.2.0.6]; Upgrade cisco business_220-16p-2g_firmware to a higher version than 1.2.0.6,and avoid the version (,1.2.0.6]; Upgrade cisco business_220-24t-4g_firmware to a higher version than 1.2.0.6,and avoid the version (,1.2.0.6]; Upgrade cisco business_220-24p-4g_firmware to a higher version than 1.2.0.6,and avoid the version (,1.2.0.6]; Upgrade cisco business_220-24fp-4g_firmware to a higher version than 1.2.0.6,and avoid the version (,1.2.0.6]; Upgrade cisco business_220-48t-4g_firmware to a higher version than 1.2.0.6,and avoid the version (,1.2.0.6]; Upgrade cisco business_220-48p-4g_firmware to a higher version than 1.2.0.6,and avoid the version (,1.2.0.6]; Upgrade cisco business_220-24t-4x_firmware to a higher version than 1.2.0.6,and avoid the version (,1.2.0.6]; Upgrade cisco business_220-24p-4x_firmware to a higher version than 1.2.0.6,and avoid the version (,1.2.0.6]; Upgrade cisco business_220-24fp-4x_firmware to a higher version than 1.2.0.6,and avoid the version (,1.2.0.6]; Upgrade cisco business_220-48t-4x_firmware to a higher version than 1.2.0.6,and avoid the version (,1.2.0.6]; Upgrade cisco business_220-48p-4x_firmware to a higher version than 1.2.0.6,and avoid the version (,1.2.0.6]; Upgrade cisco business_220-48fp-4x_firmware to a higher version than 1.2.0.6,and avoid the version (,1.2.0.6]