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Expert found a secret backdoor in Zyxel firewall and VPN

Security Affairs

Zyxel addressed a critical flaw in its firmware, tracked as CVE-2020-29583 , related to the presence of a hardcoded undocumented secret account. The vulnerability, tracked as CVE-2020-29583 received a CVSS score of 7.8, ” The CVE-2020-29583 flaw affects the firmware version 4.60 that is used by multiple Zyxel devices.

Firewall 140
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Almost 800,000 SonicWall VPN appliances online are vulnerable to CVE-2020-5135

Security Affairs

The Tripwire VERT security team spotted almost 800,000 SonicWall VPN appliances exposed online that are vulnerable to the CVE-2020-5135 RCE flaw. Security experts from the Tripwire VERT security team have discovered 795,357 SonicWall VPN appliances that were exposed online that are vulnerable to the CVE-2020-5135 RCE flaw.

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CVE-2021-3064: Easily exploitable RCE flaw in Palo Alto Networks in GlobalProtect VPN

Security Affairs

Palo Alto Networks warns of an easy exploitable Remote Code Execution vulnerability in its GlobalProtect VPN product. Exploitation of these together yields remote code execution under the privileges of the affected component on the firewall device.” 2020-11-19: Randori discovered the buffer overflow vulnerability.

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Cisco fixes 5 critical flaws that could allow router firewall takeover

Security Affairs

Cisco has released security updates to address critical remote code execution (RCE), authentication bypass, and static default credential vulnerabilities affecting multiple router and firewall devices. SecurityAffairs – hacking, Cisco). An attacker could exploit the vulnerabilities to completely takeover the network devices.

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SonicWall finally fixed a flaw resulting from a partially patched 2020 zero-day

Security Affairs

A critical vulnerability, tracked as CVE-2021-20019 , in SonicWall VPN appliances was only partially patched last year and could allow a remote attacker to steal sensitive data. The flaw resides in the HTTP/HTTPS service used for product management as well as SSL VPN remote access. “An 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v

VPN 89
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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. Sophos was informed of the attacks exploiting the zero-day issue by one of its customers on April 22.

Firewall 139
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Palo Alto Networks fixes a critical flaw in firewall PAN-OS

Security Affairs

Palo Alto Networks addressed a critical flaw in the PAN-OS of its next-generation firewalls that could allow attackers to bypass authentication. Palo Alto Networks addressed a critical vulnerability, tracked as CVE-2020-2021 , in the operating system ( PAN?OS SecurityAffairs – hacking, PAN-OS). x base score of 10. .