Information disclosure in Dahua Technology products - CVE-2019-3948

Vulnerability identifier: #VU20932

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-3948

CWE-ID: CWE-200

Exploitation vector: Remote access

Exploit availability: Public exploit is available

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the software does not require authentication to access the HTTP endpoint /videotalk. A remote unauthenticated attacker can connect to this endpoint and potentionally listen to the audio of the capturing device.

IP2M-841B
Dahua DH-IPC-HX863X
Dahua DH-IPC-HX883X
Dahua IPC-XXBXX
Dahua DH-SD6XXXXX
Dahua DH-SD5XXXXX
Dahua DH-SD4XXXXX
Dahua IPC-HX4X3X
Dahua IPC-HX5X3X
Dahua NVR2XXX-4KS2
Dahua NVR4XXX-4KS2
Dahua NVR5XXX-4KS2

Install updates from vendor's website.

IP2M-841B - update to 2.420.AC00.18.R
Dahua DH-IPC-HX863X - update to 2.622.0000000.7.R.190619
Dahua DH-IPC-HX883X - update to 2.622.0000000.7.R.190619
Dahua IPC-XXBXX - update to 2.622.0000000.9.R.190713
Dahua DH-SD6XXXXX - addressed in versions 2.623.0000000.1.R.180627, 2.640.0000000.2.R.180628
Dahua DH-SD5XXXXX - update to 2.623.0000000.1.R.180627
Dahua DH-SD4XXXXX - update to 2.623.0000000.7.R.181124
Dahua IPC-HX4X3X - update to 2.800.0000008.0.R.190619
Dahua IPC-HX5X3X - update to 2.800.0000008.0.R.190619
Dahua NVR2XXX-4KS2 - update to 3.216.0000000.0.R.180705
Dahua NVR4XXX-4KS2 - update to 3.216.0000003.0.R.190521
Dahua NVR5XXX-4KS2 - update to 3.216.0000006.0.R.20190223

• Exploit #5904 - Amcrest Cameras 2.520.AC00.18.R - Unauthenticated Audio Streaming (June 17, 2021)

• https://us.dahuasecurity.com/wp-content/uploads/2019/08/Cybersecurity_2019-08-02.pdf
• https://www.dahuasecurity.com/support/cybersecurity/details/627?us
• https://www.tenable.com/security/research/tra-2019-36

• Information disclosure in Dahua Amcrest IP Cameras