CVE-2021-33045
CriticalActively exploited (CISA KEV)
Description
The identity authentication bypass vulnerability found in some Dahua products during the login process. Attackers can bypass device identity authentication by constructing malicious data packets.
SeverityCritical
CVSS9.8
Exploit probability—
ProductDahua IP Camera Firmware
PublishedSep 15, 2021
First seenSep 15, 2021
Added to KEVAug 21, 2024
Weakness typeCWE-287Improper authentication
How to fix
CISA required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA due date: Sep 11, 2024Update
- dahuasecurity ipc-hum7xxx_firmware2.820.0000000.5.r.210705 or later
- dahuasecurity ipc-hx3xxx_firmware2.800.0000000.29.r.210630 or later
- dahuasecurity ipc-hx5xxx_firmware2.820.0000000.5.r.210705 or later
- dahuasecurity nvr-1xxx_firmware4.001.0000005.1.r.210709 or later
- dahuasecurity nvr-2xxx_firmware4.001.0000000.1.r.210710 or later
- dahuasecurity nvr-4xxx_firmware4.001.0000005.1.r.210713 or later
- dahuasecurity nvr-5xxx_firmware4.001.0000000.0.r.210710 or later
- dahuasecurity nvr-6xx_firmware4.001.0000001.1.r.210716 or later
- dahuasecurity vth-542xh_firmware4.500.0000002.0.r.210715 or later
- dahuasecurity vto-65xxx_firmware4.300.0000004.0.r.210715 or later
- dahuasecurity vto-75x95x_firmware4.300.0000003.0.r.210714 or later
- dahuasecurity xvr-4x04_firmware4.001.0000001.1.r.210709 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| dahuasecurity ipc-hum7xxx_firmware | v < 2.820.0000000.5.r.210705 | 2.820.0000000.5.r.210705 |
| dahuasecurity ipc-hx3xxx_firmware | v < 2.800.0000000.29.r.210630 | 2.800.0000000.29.r.210630 |
| dahuasecurity ipc-hx5xxx_firmware | v < 2.820.0000000.5.r.210705 | 2.820.0000000.5.r.210705 |
| dahuasecurity nvr-1xxx_firmware | v < 4.001.0000005.1.r.210709 | 4.001.0000005.1.r.210709 |
| dahuasecurity nvr-2xxx_firmware | v < 4.001.0000000.1.r.210710 | 4.001.0000000.1.r.210710 |
| dahuasecurity nvr-4xxx_firmware | v < 4.001.0000005.1.r.210713 | 4.001.0000005.1.r.210713 |
| dahuasecurity nvr-5xxx_firmware | v < 4.001.0000000.0.r.210710 | 4.001.0000000.0.r.210710 |
| dahuasecurity nvr-6xx_firmware | v < 4.001.0000001.1.r.210716 | 4.001.0000001.1.r.210716 |
| dahuasecurity vth-542xh_firmware | v < 4.500.0000002.0.r.210715 | 4.500.0000002.0.r.210715 |
| dahuasecurity vto-65xxx_firmware | v < 4.300.0000004.0.r.210715 | 4.300.0000004.0.r.210715 |
| dahuasecurity vto-75x95x_firmware | v < 4.300.0000003.0.r.210714 | 4.300.0000003.0.r.210714 |
| dahuasecurity xvr-4x04_firmware | No range specified, v < 4.001.0000001.1.r.210709 | 4.001.0000001.1.r.210709 |
| dahuasecurity xvr-4x08_firmware | v < 4.001.0000001.1.r.210709 | 4.001.0000001.1.r.210709 |
| dahuasecurity xvr-5x04_firmware | v < 4.001.0000003.1.r.210710 | 4.001.0000003.1.r.210710 |
| dahuasecurity xvr-5x08_firmware | v < 4.001.0000003.1.r.210710 | 4.001.0000003.1.r.210710 |
| dahuasecurity xvr-5x16_firmware | v < 4.001.0000003.1.r.210710 | 4.001.0000003.1.r.210710 |
| dahuasecurity xvr-7x16_firmware | v < 4.001.0000003.1.r.210710 | 4.001.0000003.1.r.210710 |
| dahuasecurity xvr-7x32_firmware | v < 4.001.0000003.1.r.210710 | 4.001.0000003.1.r.210710 |
Check your version
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