Remove Authentication Remove Firewall Remove Ransomware Remove VPN
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Zyxel 0day Affects its Firewall Products, Too

Krebs on Security

On Monday, networking hardware maker Zyxel released security updates to plug a critical security hole in its network attached storage (NAS) devices that is being actively exploited by crooks who specialize in deploying ransomware. Today, Zyxel acknowledged the same flaw is present in many of its firewall products.

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Sophos blocked attacks exploiting XG Firewall zero-day to deploy Ransomware

Security Affairs

Hackers attempted to exploit a zero-day flaw in the Sophos XG firewall to distribute ransomware to Windows machines, but the attack was blocked. It was designed to download payloads intended to exfiltrate XG Firewall-resident data. Passwords associated with external authentication systems such as AD or LDAP are unaffected.

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Akira Ransomware Targeting VPNs without Multi-Factor Authentication

Cisco Security

Cisco is aware of reports that Akira ransomware threat actors have been targeting Cisco VPNs that are not configured for multi-factor authentication to infiltrate organizations, and we have observed instances where threat actors appear to be targeting organizations that do not configure multi-factor authentication for their VPN users.

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NSA, CISA release guidance on hardening remote access via VPN solutions

Security Affairs

CISA and the NSA agencies have published guidance for securely using virtual private network (VPN) solutions. Cybersecurity and Infrastructure Security Agency (CISA) and the National Security Agency (NSA) have released guidance for increasing the security of virtual private network (VPN) solutions.

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Building a Ransomware Resilient Architecture

eSecurity Planet

Upon investigation, you discover it’s ransomware. You look for your cold replica in your DR site, but like your production servers, it has also been encrypted by ransomware. Your backups, the backup server, and all the backup storage — all encrypted by ransomware. All inter-VLAN traffic should go through a firewall.

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FBI and CISA warn of attacks by Rhysida ransomware gang

Security Affairs

The FBI and CISA warn of attacks carried out by the Rhysida ransomware group against organizations across multiple industry sectors. FBI and CISA published a joint Cybersecurity Advisory (CSA) to warn of Rhysida ransomware attacks against organizations across multiple industry sectors. ” reads the joint advisory.

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CISA Order Highlights Persistent Risk at Network Edge

Krebs on Security

The directive applies to any networking devices — such as firewalls, routers and load balancers — that allow remote authentication or administration. The researchers found that just being able to reach the management interface for a vulnerable Fortinet SSL VPN appliance was enough to completely compromise the devices.

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