CVE-2019-9678 : Security Advisory and Response
Learn about CVE-2019-9678 affecting Dahua products. Attackers can crash devices by sending harmful packets. Find mitigation steps and long-term security practices here.
Certain Dahua products have a denial of service vulnerability that allows attackers to crash devices by sending malicious packets. The affected products include various Dahua camera models built before August 18, 2019.
Understanding CVE-2019-9678
This CVE involves a denial of service vulnerability in Dahua products, impacting the login process and device stability.
What is CVE-2019-9678?
- The vulnerability allows attackers to crash Dahua devices by sending harmful packets during login attempts.
The Impact of CVE-2019-9678
- Attackers can exploit this vulnerability to disrupt the functionality of affected Dahua cameras, potentially leading to service interruptions or device unavailability.
Technical Details of CVE-2019-9678
This section provides detailed technical insights into the vulnerability.
Vulnerability Description
- The vulnerability in Dahua products results in a denial of service condition when malicious packets are sent during login procedures.
Affected Systems and Versions
- Affected Dahua camera models include IPC-HDW1X2X, IPC-HFW1X2X, IPC-HDW2X2X, IPC-HFW2X2X, IPC-HDW4X2X, IPC-HFW4X2X, IPC-HDBW4X2X, IPC-HDW5X2X, and IPC-HFW5X2X built before August 18, 2019.
Exploitation Mechanism
- Attackers exploit this vulnerability by crafting harmful packets that, when sent during login attempts, crash the targeted Dahua devices.
Mitigation and Prevention
Protecting systems from CVE-2019-9678 requires immediate actions and long-term security measures.
Immediate Steps to Take
- Update affected Dahua devices to versions built after August 18, 2019, to mitigate the vulnerability.
- Monitor network traffic for any suspicious login attempts or packet anomalies.
Long-Term Security Practices
- Implement network segmentation to isolate critical devices from potential attacks.
- Regularly review and update security configurations to address emerging threats.
Patching and Updates
- Stay informed about security advisories from Dahua and promptly apply patches and firmware updates to address known vulnerabilities.