Cybersecurity is an on-going challenge for all IoT connected device manufacturers and users, as it is for all digital products and services. Dahua Technology is committed to developing and maintaining state-of-the-art cybersecurity practices, including through our product design process and our customer-facing Dahua Cybersecurity Center (DHCC) for transparent vulnerability reporting and handling.
In response to the security issues reported by Nozomi Networks, Dahua immediately conducted a comprehensive investigation of affected product models and has developed patches and firmware that fix the vulnerabilities. Please download from https://www.dahuasecurity.com/support/downloadCenter or contact Dahua local technical support to upgrade.
We strongly suggest, consistent with cybersecurity best practice, that all Dahua customers follow our security advisory, in order to insure their systems are up-to-date and maximally protected. In the meantime, customers with other concerns on cybersecurity related issues, please feel free to contact us at email@example.com
When an attacker obtaining the administrative account and password, or through a man-in-the-middle attack, the attacker could send a specified crafted packet to the vulnerable interface then lead the device to crash.
When an attacker uses a man-in-the-middle attack to sniff the request packets with success logging in, the attacker could log in to the device by replaying the user's login packet.
If the user enables the https function on the device, an attacker can modify the user’s request data packet through a man-in-the-middle attack and redirect to a malicious page.
When an attacker uses a man-in-the-middle attack to sniff the request packets with success logging in through ONVIF, he can log in to the device by replaying the user's login packet.
Vulnerability CVSS Score
The vulnerability classification has been performed by using the CVSSv3.1 scoring system (http://www.first.org/cvss/specification-document).
Base Score: 5.4 (AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N)
Temporal Score: 4.9 (E:P/RL:O/RC:C)
Base Score: 5.9 (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
Temporal Score: 5.3 (E:P/RL:O/RC:C)
Base Score: 3.7 (AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N)
Temporal Score: 3.4 (E:P/RL:O/RC:C)
Base Score: 6.8 (AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N)
Temporal Score: 6.1 (E:P/RL:O/RC:C)
Affected Products & Fix Software
The following product series and models are currently known to be affected.
Versions which Build time before April, 2022
Versions which Build time before September, 2021
Note: Please login to the Web interface of the device to view Build time, which you can find on the Settings-System Information-Version Information page (setting-systeminfo-version).
Fix Software Download
Please download the corresponding fix software or its newer version as listed in the above table from Dahua website, or contact Dahua local technical support to upgrade.
· Cloud Upgrade: Dahua products have the capability of cloud upgrade. Relevant repair versions can be obtained through cloud upgrade.
· Dahua Official website: Overseas: https://www.dahuasecurity.com/support/downloadCenter.
· Dahua Technical Support Personnel
For any questions or concerns related to our products and solutions, please contact Dahua DHCC at firstname.lastname@example.org.
We acknowledge the support of Andrea Palanca from Nozomi Networks who discovered these vulnerabilities and reported to DHCC.
Initial public release