Check Point Advisories

Dahua Security Multiple Products Authentication Bypass (CVE-2021-33044)

Vulnerability
Protection

Check Point Reference:	CPAI-2021-2137
Date Published:	29 Aug 2024
Severity:	Critical
Last Updated:	Thursday 29 August, 2024
Source:
Industry Reference:	CVE-2021-33044
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Dahua Security ipc-hum7xxx prior to 2.820.0000000.5.r.210705 Dahua Security ipc-hx3xxx prior to 2.800.0000000.29.r.210630 Dahua Security ipc-hx5xxx prior to 2.820.0000000.18.r.210705 Dahua Security sd1a1 prior to 2.812.0000007.0.r.210706 Dahua Security sd22 prior to 2.812.0000007.0.r.210706 Dahua Security sd41 prior to 2.812.0000007.0.r.210706 Dahua Security sd50 prior to 2.812.0000007.0.r.210706 Dahua Security sd52c prior to 2.812.0000007.0.r.210706 Dahua Security sd6al prior to 2.812.0000007.0.r.210706 Dahua Security tpc-bf1241 prior to 2.630.0000000.6.r.210707 Dahua Security tpc-bf2221 prior to 2.630.0000000.6.r.210707 Dahua Security tpc-bf5x01 prior to 2.630.0000000.12.r.210707 Dahua Security tpc-pt8x21b prior to 2.630.0000000.10.r.210701 Dahua Security tpc-sd2221 prior to 2.630.0000000.7.r.210707 Dahua Security tpc-sd8x21 prior to 2.630.0000000.9.r.210706 Dahua Security vto-65xxx prior to 4.300.0000004.0.r.210715 Dahua Security vto-75x95x prior to 4.300.0000003.0.r.210714 Dahua Security vth-542xh prior to 4.500.0000002.0.r.210715 Dahua Security tpc-bf5x21 prior to 2.630.0000000.8.r.210630
Vulnerability Description	An authentication bypass vulnerability exists in Dahua Security products. Successful exploitation of this vulnerability would allow remote attackers to gain unauthorized access into the affected system.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R81 / R80 / R77 / R75

In the IPS tab, click Protections and find the Dahua Security Multiple Products Authentication Bypass (CVE-2021-33044) protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Web Server Enforcement Violation.
Attack Information: Dahua Security Multiple Products Authentication Bypass (CVE-2021-33044)