CVE:CVE-2021-33045
CNNVD:CNNVD-202109-1081
Dahua  IPC是中国大华（Dahua）公司的大华的一系列工控机。
Dahua  IPC存在安全漏洞，攻击者可利用该漏洞通过构造恶意数据包绕过设备身份验证
solution:Upgrade dahuasecurity ipc-hum7xxx_firmware to a higher version than 2.820.0000000.5.r.210705,and avoid the version (,2.820.0000000.5.r.210705); Upgrade dahuasecurity ipc-hx3xxx_firmware to a higher version than 2.800.0000000.29.r.210630,and avoid the version (,2.800.0000000.29.r.210630); Upgrade dahuasecurity ipc-hx5xxx_firmware to a higher version than 2.820.0000000.5.r.210705,and avoid the version (,2.820.0000000.5.r.210705); Upgrade dahuasecurity nvr-1xxx_firmware to a higher version than 4.001.0000005.1.r.210709,and avoid the version (,4.001.0000005.1.r.210709); Upgrade dahuasecurity nvr-2xxx_firmware to a higher version than 4.001.0000000.1.r.210710,and avoid the version (,4.001.0000000.1.r.210710); Upgrade dahuasecurity nvr-4xxx_firmware to a higher version than 4.001.0000005.1.r.210713,and avoid the version (,4.001.0000005.1.r.210713); Upgrade dahuasecurity nvr-5xxx_firmware to a higher version than 4.001.0000000.0.r.210710,and avoid the version (,4.001.0000000.0.r.210710); Upgrade dahuasecurity nvr-6xx_firmware to a higher version than 4.001.0000001.1.r.210716,and avoid the version (,4.001.0000001.1.r.210716); Upgrade dahuasecurity vth-542xh_firmware to a higher version than 4.500.0000002.0.r.210715,and avoid the version (,4.500.0000002.0.r.210715); Upgrade dahuasecurity vto-65xxx_firmware to a higher version than 4.300.0000004.0.r.210715,and avoid the version (,4.300.0000004.0.r.210715); Upgrade dahuasecurity vto-75x95x_firmware to a higher version than 4.300.0000003.0.r.210714,and avoid the version (,4.300.0000003.0.r.210714); Upgrade dahuasecurity xvr-4x04_firmware to a higher version than -,4.001.0000001.1.r.210709,and avoid the version (,4.001.0000001.1.r.210709); Upgrade dahuasecurity xvr-4x08_firmware to a higher version than 4.001.0000001.1.r.210709,and avoid the version (,4.001.0000001.1.r.210709); Upgrade dahuasecurity xvr-5x04_firmware to a higher version than 4.001.0000003.1.r.210710,and avoid the version (,4.001.0000003.1.r.210710); Upgrade dahuasecurity xvr-5x08_firmware to a higher version than 4.001.0000003.1.r.210710,and avoid the version (,4.001.0000003.1.r.210710); Upgrade dahuasecurity xvr-5x16_firmware to a higher version than 4.001.0000003.1.r.210710,and avoid the version (,4.001.0000003.1.r.210710); Upgrade dahuasecurity xvr-7x16_firmware to a higher version than 4.001.0000003.1.r.210710,and avoid the version (,4.001.0000003.1.r.210710); Upgrade dahuasecurity xvr-7x32_firmware to a higher version than 4.001.0000003.1.r.210710,and avoid the version (,4.001.0000003.1.r.210710)