SonicWall partners and customers using the SMA 100 series should either use a firewall to only allow SSL-VPN connections to the SMA appliance from known/whitelisted IPs or configure whitelist access on the SMA directly itself, according to the company.įor firewalls with SSN-VPN access using the compromised version of the NetExtender VPN client, partners and customers should either disable NetExtender access to the firewall(s) or restrict access to users and admins via an allow-list/whitelist for their public IPs, according to SonicWall.
Products compromised in the the SonicWall breach include: the NetExtender VPN client version 10.x (released in 2020) used to connect to SMA 100 series appliances and SonicWall firewalls as well as SonicWall’s SMA version 10.x running on SMA 200, SMA 210, SMA 400, SMA 410 physical appliances and the SMA 500v virtual appliance. Multi-factor authentication must be enabled on all SonicWall SMA, firewall and MySonicWall accounts, according to SonicWall. The company said it is providing mitigation recommendations to its channel partners and customers. The company, however, noted that it’s seen a “dramatic surge” in cyberattacks against firms that provide critical infrastructure and security controls to governments and businesses. SonicWall declined to answer questions about whether the attack on its internal systems was carried out by the same threat actor who for months injected malicious code into the SolarWinds Orion network monitoring tool. The company said the coordinated attack on its systems was identified “recently.” “We believe it is extremely important to be transparent with our customers, our partners and the broader cybersecurity community about the ongoing attacks on global business and government,” SonicWall wrote in an “Urgent Security Notice” posted to its product notifications webpage at 11:15 p.m. The SMA 1000 series is not susceptible to this attack and utilizes clients different from NetExtender, according to SonicWall. The Milpitas, Calif.-based platform security vendor said the compromised NetExtender VPN client and SMB-oriented Secure Mobile Access (SMA) 100 series products are used to provide employees and users with remote access to internal resources. SonicWall disclosed Friday night that highly sophisticated threat actors attacked its internal systems by exploiting a probable zero-day flaw on the company’s secure remote access products.
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