- Products
- Network Security
Next Generation FirewallNext-generation firewall for SMB, Enterprise, and Government
Security ServicesComprehensive security for your network security solution
Network Security ManagerModern Security Management for today’s security landscape
- Advanced Threat Protection
Capture ATPMulti-engine advanced threat detection
Capture Security applianceAdvanced Threat Protection for modern threat landscape
- Access Security
Cloud Edge Secure AccessDeploy Zero-Trust Security in minutes
Secure Mobile AccessRemote, best-in-class, secure access
Wireless Access PointsEasy to manage, fast and secure Wi-FI
SwitchesHigh-speed network switching for business connectivity
- Email Security
Email SecurityProtect against today’s advanced email threats
- Cloud Security
Cloud App SecurityVisibility and security for Cloud Apps
Cloud Firewall (NSv)Next-generation firewall capabilities in the cloud
- Endpoint Security
Capture ClientStop advanced threats and rollback the damage caused by malware
Content Filtering ClientControl access to unwanted and unsecure web content
- Product Widgets
- Product Menu Right Image
- Network Security
- Solutions
- Solutions Widgets
- Solutions Image Widgets
- Solutions Widgets
- Partners
- Partner Widgets
- Partners Image Widgets
- Partner Widgets
- Support
- Support Widget
- Support Image Widgets
- Support Widget
- Products
- Network Security
- Next Generation FirewallNext-generation firewall for SMB, Enterprise, and Government
- Security ServicesComprehensive security for your network security solution
- Network Security ManagerModern Security Management for today’s security landscape
- Advanced Threat Protection
- Capture ATPMulti-engine advanced threat detection
- Capture Security applianceAdvanced Threat Protection for modern threat landscape
- Access Security
- Cloud Edge Secure AccessDeploy Zero-Trust Security in minutes
- Secure Mobile AccessRemote, best-in-class, secure access
- Wireless Access PointsEasy to manage, fast and secure Wi-FI
- SwitchesHigh-speed network switching for business connectivity
- Email Security
- Email SecurityProtect against today’s advanced email threats
- Cloud Security
- Cloud App SecurityVisibility and security for Cloud Apps
- Cloud Firewall (NSv)Next-generation firewall capabilities in the cloud
- Endpoint Security
- Capture ClientStop advanced threats and rollback the damage caused by malware
- Content Filtering ClientControl access to unwanted and unsecure web content
- Product Widgets
- Product Menu Right Image
- Network Security
- Solutions
- Solutions Widgets
- Solutions Image Widgets
- Solutions Widgets
- Partners
- Partner Widgets
- Partners Image Widgets
- Partner Widgets
- Support
- Support Widget
- Support Image Widgets
- Support Widget
WPA2 KRACK Exploit: A SonicWall Alert
First Published:10/16/2017 
Last Updated:12/20/2019On October 16, 2017 security researchers made public earlier findings in which they demonstrated fundamental design flaws in WPA2 that could theoretically lead to man-in-the-middle (MITM) attacks using key reinstallation attacks (KRACKs). Exploiting the vulnerability could enable cyber criminals to steal confidential information such as email, credit card numbers, passwords and more.
The WPA2 design flaws are protocol vulnerabilities and are not implementation specific. Both wireless access points and wireless clients are susceptible. Details of the vulnerabilities are available on the researchers’ website at www.krackattacks.com.
Impact to SonicWall customers
SonicWall Capture Labs has evaluated these vulnerabilities and determined that our SonicPoint and SonicWave wireless access points, as well as our TZ and SOHO Wireless firewalls, are not vulnerable to the flaws in WPA2.
SonicWall is working on a solution to provide an additional layer of protection for SonicWall customers that will block these man-in-the-middle attacks even from vulnerable unpatched clients. This will be delivered in a future SonicOS update.
Recommended Action
In order to minimize the potential impact of these vulnerabilities, SonicWall recommends customers take the following actions:
- Patch all Windows, Linux, Android, iOS and Mac OS clients with the latest KRACK updates from client vendors.
- For additional security, customers can use SonicWall VPN technology to encrypt all network traffic between their wireless clients and the SonicWall firewall.
- For SSL encryption on mobile devices, use the SonicWall Mobile Connect client, available from the Apple App Store, Google Play, the Windows Phone Store or the Chrome Web Store https://cdn.sonicwall.com/sonicwall.com/media/pdfs/products/product-vpn-clients-mobile-connect.pdf.
- For IPSec encryption, use the SonicWall Global VPN Client https://www.sonicwall.com/en-us/support/knowledge-base/170505725970885.
Should you have further questions or need assistance, please contact your preferred SonicWall reseller or SonicWall Support. You can also expect to see a blog post about this vulnerability on https://blog.sonicwall.com/ shortly.
