CVE-2021-33045
Dahua IP Camera Authentication Bypass Vulnerability
Severity Score
9.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
3
*Multiple Sources
Exploited in Wild
Yes
*KEV
Decision
Act
*SSVC
Descriptions
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.
Una vulnerabilidad de omisión de autenticación de identidad encontrada en algunos productos Dahua durante el proceso de inicio de sesión. Los atacantes pueden omitir la autenticación de identidad del dispositivo al construir paquetes de datos maliciosos
Various Dahua products suffers from multiple authentication bypass vulnerabilities.
Dahua IP cameras and related products contain an authentication bypass vulnerability when the loopback device is specified by the client during authentication.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Act
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-05-17 CVE Reserved
- 2021-09-15 CVE Published
- 2023-11-27 First Exploit
- 2024-08-21 Exploited in Wild
- 2024-09-05 CVE Updated
- 2024-09-11 KEV Due Date
- 2025-01-01 EPSS Updated
CWE
- CWE-287: Improper Authentication
CAPEC
References (4)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|---|---|
| https://github.com/dongpohezui/cve-2021-33045 | 2023-11-27 | |
| http://packetstormsecurity.com/files/164423/Dahua-Authentication-Bypass.html | 2024-09-05 | |
| http://seclists.org/fulldisclosure/2021/Oct/13 | 2024-09-05 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.dahuasecurity.com/support/cybersecurity/details/957 | 2021-12-02 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Dahuasecurity Search vendor "Dahuasecurity" | Ipc-hum7xxx Firmware Search vendor "Dahuasecurity" for product "Ipc-hum7xxx Firmware" | < 2.820.0000000.5.r.210705 Search vendor "Dahuasecurity" for product "Ipc-hum7xxx Firmware" and version " < 2.820.0000000.5.r.210705" | - |
Affected
| in | Dahuasecurity Search vendor "Dahuasecurity" | Ipc-hum7xxx Search vendor "Dahuasecurity" for product "Ipc-hum7xxx" | - | - |
Safe
|
| Dahuasecurity Search vendor "Dahuasecurity" | Ipc-hx3xxx Firmware Search vendor "Dahuasecurity" for product "Ipc-hx3xxx Firmware" | < 2.800.0000000.29.r.210630 Search vendor "Dahuasecurity" for product "Ipc-hx3xxx Firmware" and version " < 2.800.0000000.29.r.210630" | - |
Affected
| in | Dahuasecurity Search vendor "Dahuasecurity" | Ipc-hx3xxx Search vendor "Dahuasecurity" for product "Ipc-hx3xxx" | - | - |
Safe
|
| Dahuasecurity Search vendor "Dahuasecurity" | Ipc-hx5xxx Firmware Search vendor "Dahuasecurity" for product "Ipc-hx5xxx Firmware" | < 2.820.0000000.5.r.210705 Search vendor "Dahuasecurity" for product "Ipc-hx5xxx Firmware" and version " < 2.820.0000000.5.r.210705" | - |
Affected
| in | Dahuasecurity Search vendor "Dahuasecurity" | Ipc-hx5xxx Search vendor "Dahuasecurity" for product "Ipc-hx5xxx" | - | - |
Safe
|
| Dahuasecurity Search vendor "Dahuasecurity" | Nvr-1xxx Firmware Search vendor "Dahuasecurity" for product "Nvr-1xxx Firmware" | < 4.001.0000005.1.r.210709 Search vendor "Dahuasecurity" for product "Nvr-1xxx Firmware" and version " < 4.001.0000005.1.r.210709" | - |
Affected
| in | Dahuasecurity Search vendor "Dahuasecurity" | Nvr-1xxx Search vendor "Dahuasecurity" for product "Nvr-1xxx" | - | - |
Safe
|
| Dahuasecurity Search vendor "Dahuasecurity" | Nvr-2xxx Firmware Search vendor "Dahuasecurity" for product "Nvr-2xxx Firmware" | < 4.001.0000000.1.r.210710 Search vendor "Dahuasecurity" for product "Nvr-2xxx Firmware" and version " < 4.001.0000000.1.r.210710" | - |
Affected
| in | Dahuasecurity Search vendor "Dahuasecurity" | Nvr-2xxx Search vendor "Dahuasecurity" for product "Nvr-2xxx" | - | - |
Safe
|
| Dahuasecurity Search vendor "Dahuasecurity" | Nvr-4xxx Firmware Search vendor "Dahuasecurity" for product "Nvr-4xxx Firmware" | < 4.001.0000005.1.r.210713 Search vendor "Dahuasecurity" for product "Nvr-4xxx Firmware" and version " < 4.001.0000005.1.r.210713" | - |
Affected
| in | Dahuasecurity Search vendor "Dahuasecurity" | Nvr-4xxx Search vendor "Dahuasecurity" for product "Nvr-4xxx" | - | - |
Safe
|
| Dahuasecurity Search vendor "Dahuasecurity" | Nvr-5xxx Firmware Search vendor "Dahuasecurity" for product "Nvr-5xxx Firmware" | < 4.001.0000000.0.r.210710 Search vendor "Dahuasecurity" for product "Nvr-5xxx Firmware" and version " < 4.001.0000000.0.r.210710" | - |
Affected
| in | Dahuasecurity Search vendor "Dahuasecurity" | Nvr-5xxx Search vendor "Dahuasecurity" for product "Nvr-5xxx" | - | - |
Safe
|
| Dahuasecurity Search vendor "Dahuasecurity" | Nvr-6xx Firmware Search vendor "Dahuasecurity" for product "Nvr-6xx Firmware" | < 4.001.0000001.1.r.210716 Search vendor "Dahuasecurity" for product "Nvr-6xx Firmware" and version " < 4.001.0000001.1.r.210716" | - |
Affected
| in | Dahuasecurity Search vendor "Dahuasecurity" | Nvr-6xx Search vendor "Dahuasecurity" for product "Nvr-6xx" | - | - |
Safe
|
| Dahuasecurity Search vendor "Dahuasecurity" | Vth-542xh Firmware Search vendor "Dahuasecurity" for product "Vth-542xh Firmware" | < 4.500.0000002.0.r.210715 Search vendor "Dahuasecurity" for product "Vth-542xh Firmware" and version " < 4.500.0000002.0.r.210715" | - |
Affected
| in | Dahuasecurity Search vendor "Dahuasecurity" | Vth-542xh Search vendor "Dahuasecurity" for product "Vth-542xh" | - | - |
Safe
|
| Dahuasecurity Search vendor "Dahuasecurity" | Vto-65xxx Firmware Search vendor "Dahuasecurity" for product "Vto-65xxx Firmware" | < 4.300.0000004.0.r.210715 Search vendor "Dahuasecurity" for product "Vto-65xxx Firmware" and version " < 4.300.0000004.0.r.210715" | - |
Affected
| in | Dahuasecurity Search vendor "Dahuasecurity" | Vto-65xxx Search vendor "Dahuasecurity" for product "Vto-65xxx" | - | - |
Safe
|
| Dahuasecurity Search vendor "Dahuasecurity" | Vto-75x95x Firmware Search vendor "Dahuasecurity" for product "Vto-75x95x Firmware" | < 4.300.0000003.0.r.210714 Search vendor "Dahuasecurity" for product "Vto-75x95x Firmware" and version " < 4.300.0000003.0.r.210714" | - |
Affected
| in | Dahuasecurity Search vendor "Dahuasecurity" | Vto-75x95x Search vendor "Dahuasecurity" for product "Vto-75x95x" | - | - |
Safe
|
| Dahuasecurity Search vendor "Dahuasecurity" | Xvr-4x04 Firmware Search vendor "Dahuasecurity" for product "Xvr-4x04 Firmware" | - | - |
Affected
| in | Dahuasecurity Search vendor "Dahuasecurity" | Xvr-4x04 Search vendor "Dahuasecurity" for product "Xvr-4x04" | - | - |
Safe
|
| Dahuasecurity Search vendor "Dahuasecurity" | Xvr-4x08 Firmware Search vendor "Dahuasecurity" for product "Xvr-4x08 Firmware" | < 4.001.0000001.1.r.210709 Search vendor "Dahuasecurity" for product "Xvr-4x08 Firmware" and version " < 4.001.0000001.1.r.210709" | - |
Affected
| in | Dahuasecurity Search vendor "Dahuasecurity" | Xvr-4x08 Search vendor "Dahuasecurity" for product "Xvr-4x08" | - | - |
Safe
|
| Dahuasecurity Search vendor "Dahuasecurity" | Xvr-4x04 Firmware Search vendor "Dahuasecurity" for product "Xvr-4x04 Firmware" | < 4.001.0000001.1.r.210709 Search vendor "Dahuasecurity" for product "Xvr-4x04 Firmware" and version " < 4.001.0000001.1.r.210709" | - |
Affected
| in | Dahuasecurity Search vendor "Dahuasecurity" | Xvr-4x04 Search vendor "Dahuasecurity" for product "Xvr-4x04" | - | - |
Safe
|
| Dahuasecurity Search vendor "Dahuasecurity" | Xvr-5x04 Firmware Search vendor "Dahuasecurity" for product "Xvr-5x04 Firmware" | < 4.001.0000003.1.r.210710 Search vendor "Dahuasecurity" for product "Xvr-5x04 Firmware" and version " < 4.001.0000003.1.r.210710" | - |
Affected
| in | Dahuasecurity Search vendor "Dahuasecurity" | Xvr-5x04 Search vendor "Dahuasecurity" for product "Xvr-5x04" | - | - |
Safe
|
| Dahuasecurity Search vendor "Dahuasecurity" | Xvr-5x08 Firmware Search vendor "Dahuasecurity" for product "Xvr-5x08 Firmware" | < 4.001.0000003.1.r.210710 Search vendor "Dahuasecurity" for product "Xvr-5x08 Firmware" and version " < 4.001.0000003.1.r.210710" | - |
Affected
| in | Dahuasecurity Search vendor "Dahuasecurity" | Xvr-5x08 Search vendor "Dahuasecurity" for product "Xvr-5x08" | - | - |
Safe
|
| Dahuasecurity Search vendor "Dahuasecurity" | Xvr-5x16 Firmware Search vendor "Dahuasecurity" for product "Xvr-5x16 Firmware" | < 4.001.0000003.1.r.210710 Search vendor "Dahuasecurity" for product "Xvr-5x16 Firmware" and version " < 4.001.0000003.1.r.210710" | - |
Affected
| in | Dahuasecurity Search vendor "Dahuasecurity" | Xvr-5x16 Search vendor "Dahuasecurity" for product "Xvr-5x16" | - | - |
Safe
|
| Dahuasecurity Search vendor "Dahuasecurity" | Xvr-7x16 Firmware Search vendor "Dahuasecurity" for product "Xvr-7x16 Firmware" | < 4.001.0000003.1.r.210710 Search vendor "Dahuasecurity" for product "Xvr-7x16 Firmware" and version " < 4.001.0000003.1.r.210710" | - |
Affected
| in | Dahuasecurity Search vendor "Dahuasecurity" | Xvr-7x16 Search vendor "Dahuasecurity" for product "Xvr-7x16" | - | - |
Safe
|
| Dahuasecurity Search vendor "Dahuasecurity" | Xvr-7x32 Firmware Search vendor "Dahuasecurity" for product "Xvr-7x32 Firmware" | < 4.001.0000003.1.r.210710 Search vendor "Dahuasecurity" for product "Xvr-7x32 Firmware" and version " < 4.001.0000003.1.r.210710" | - |
Affected
| in | Dahuasecurity Search vendor "Dahuasecurity" | Xvr-7x32 Search vendor "Dahuasecurity" for product "Xvr-7x32" | - | - |
Safe
|