Security Affairs

MAY 13, 2022

Zyxel addressed a critical flaw affecting Zyxel firewall devices that allows unauthenticated, remote attackers to gain arbitrary code execution. affecting Zyxel firewall devices that enables unauthenticated and remote attackers to gain arbitrary code execution as the “nobody” user. USG FLEX 50(W) / USG20(W)-VPN ZLD V5.10

Firewall 80

Firewall Firmware VPN Wireless 80

Security Affairs

JUNE 13, 2023

“A heap-based buffer overflow vulnerability [CWE-122] in FortiOS and FortiProxy SSL-VPN may allow a remote attacker to execute arbitrary code or commands via specifically crafted requests.” If the customer is not operating SSL-VPN the risk of this issue is mitigated – however, Fortinet still recommends upgrading.”

Firewall 92

Firewall VPN Firmware Manufacturing 92

Security Affairs

JUNE 4, 2023

Zyxel has published guidance for protecting firewall and VPN devices from the ongoing attacks recently discovered. Zyxel has published guidance for protecting firewall and VPN devices from ongoing attacks exploiting CVE-2023-28771 , CVE-2023-33009 , and CVE-2023-33010 vulnerabilities. in its firewall devices.

Firmware 92

Firmware VPN Firewall Hacking 92

Security Affairs

MAY 17, 2022

US Critical Infrastructure Security Agency (CISA) adds critical CVE-2022-30525 RCE flaw in Zyxel Firewalls to its Known Exploited Vulnerabilities Catalog. affecting Zyxel firewall devices that enables unauthenticated and remote attackers to gain arbitrary code execution as the “nobody” user. USG FLEX 50(W) / USG20(W)-VPN ZLD V5.10

Firewall 83

Firewall VPN Firmware Internet 83

Security Affairs

JUNE 20, 2023

The vulnerability is a pre-authentication command injection issue that impacts the Zyxel NAS326 firmware versions prior to V5.21(AAZF.14)C0, 14)C0, NAS540 firmware versions prior to V5.21(AATB.11)C0, 11)C0, and NAS542 firmware versions prior to V5.21(ABAG.11)C0. in its firewall devices.

Firmware 96

Firmware Firewall Authentication VPN 96

Security Affairs

NOVEMBER 29, 2020

Experts found a critical flaw in Real-Time Automation’s (RTA) 499ES EtherNet/IP stack that could allow hacking industrial control systems. Experts was that vendors may have bought vulnerable versions of this stack before the 2012 update and are still using it in their firmware. Tracked as CVE-2020-25159 , the flaw is rated 9.8

Hacking 133

Hacking Firmware Internet Internet 133

Security Affairs

SEPTEMBER 7, 2022

flaw is classified as a format string vulnerability that resides in Zyxel NAS326 firmware versions prior to V5.21(AAZF.12)C0. Below is the list of affected models and the firmware patches released by the company. SecurityAffairs – hacking, Zyxel). The CVE-2022-34747 (CVSS score: 9.8) 11)C0 and earlier V5.21(AAZF.12)C0

Firewall 93

Firewall Firmware Authentication VPN 93

Security Affairs

JULY 22, 2023

Fortinet FortiGuard Labs researchers warned of multiple DDoS botnets exploiting a vulnerability impacting multiple Zyxel firewalls. The cause of the vulnerability is the improper error message handling in Zyxel ZyWALL/USG series firmware versions 4.60 through 4.73, VPN series firmware versions 4.60 through 5.35.

DDOS 98

DDOS Firmware VPN Firewall 98

Krebs on Security

JUNE 15, 2023

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.

Risk 210

Risk VPN Internet Internet 210

Security Affairs

SEPTEMBER 4, 2019

Experts at SEC Consult discovered several security issues in various Zyxel devices that allow to hack them via unauthenticated DNS requests. The first issue is an information disclosure flaw via unauthenticated external DNS requests that affect Zyxel devices from the USG, UAG, ATP, VPN and NXC series. ” reads the advisory.

DNS 78

DNS Hacking Firmware Wireless 78

Security Affairs

JANUARY 6, 2021

Threat actors are attempting to hack Zyxel devices exploiting the recently disclosed vulnerability CVE-2020-29583, security researchers warn. The Taiwanese vendor Zyxel has recently addressed a critical vulnerability in its firmware, tracked as CVE-2020-29583 , related to the presence of a hardcoded undocumented secret account.

Firmware 116

Firmware Passwords Accountability VPN 116

Security Affairs

JUNE 23, 2021

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 92

VPN Firewall Firmware Authentication 92

Security Affairs

OCTOBER 22, 2022

The Daixin Team group gains initial access to victims through virtual private network (VPN) servers. In one successful attack, the attackers likely exploited an unpatched vulnerability in the organization’s VPN server. In another compromise, the group leveraged on compromised credentials to access a legacy VPN server.

Ransomware 75

Ransomware VPN Cybercrime Accountability 75

Security Affairs

MARCH 23, 2021

“GE strongly recommends users with impacted firmware versions update their UR devices to UR firmware Version 8.10, or greater to resolve these vulnerabilities. Locate control system networks and remote devices behind firewalls, and isolate them from the business network. SecurityAffairs – hacking, CISA).

Firmware 88

Firmware VPN Firewall Risk 88

Security Affairs

APRIL 25, 2019

Rockwell has released firmware updates that address the vulnerability for the affected controllers. Below the recommendations published by Rockwell Automation to minimize the risk of exploitation of this vulnerability: Update to the latest available firmware revision that addresses the associated risk. Pierluigi Paganini.

Firmware 77

Firmware Social Engineering Advertising Malware 77

eSecurity Planet

MARCH 1, 2023

Update your router firmware from your router’s manufacturer and install them to ensure your router is up to date and secure. Use a firewall on your router and any devices connected to your network to prevent unauthorized access to your network and data. Whitelist devices if you want even more restrictive network access.

Wireless 98

Wireless Encryption Authentication IoT 98

Security Affairs

JULY 31, 2019

“To update to the latest firmware, each user should select the “Check for Upgrade” option in the “Centrals” menu in the GUI. Locate control system networks and remote devices behind firewalls, and isolate them from the business network. Also recognize that VPN is only as secure as the connected devices.”

Backups 62

Backups Authentication Advertising Firmware 62

Security Affairs

OCTOBER 20, 2018

CVE-2018-18472 – XXE and Unauthenticated Remote Command Execution in Axentra Hipserv NAS firmware. . It’s used in different devices from different vendors, the affected devices sharing the firmware are: Netgear Stora. The company provides a firmware with a web interface that mainly uses PHP as a serverside language.

Firmware 67

Firmware IoT VPN Authentication 67

SecureList

SEPTEMBER 21, 2023

We conducted an analysis of the IoT threat landscape for 2023, as well as the products and services offered on the dark web related to hacking connected devices. Another type of service sold on the dark web is IoT hacking. The most commonly used preemptive tactic is adding firewall rules that block incoming connection attempts.

IoT 86

IoT DDOS Passwords Malware 86

Security Affairs

JANUARY 14, 2024

The attackers exploited zero-day vulnerabilities in Zyxel firewalls used by many critical infrastructure operators in Denmark. On April 25, 2023, Zyxel disclosed a critical vulnerability (CVSS score 9.8), tracked as CVE-2023-28771 , in a number of their firewalls. through 4.73, VPN series firmware versions 4.60

Firewall 114

Firewall Firmware Cyber Attacks VPN 114

Security Affairs

NOVEMBER 14, 2023

The attackers exploited zero-day vulnerabilities in Zyxel firewalls used by many critical infrastructure operators in Denmark. On April 25, 2023, Zyxel disclosed a critical vulnerability (CVSS score 9.8), tracked as CVE-2023-28771 , in a number of their firewalls. through 4.73, VPN series firmware versions 4.60

Cyber Attacks 123

Cyber Attacks Firmware Firewall VPN 123

eSecurity Planet

MARCH 4, 2024

The fix: To eliminate malware infections, perform a factory reset, upgrade to the latest firmware, change all default usernames and passwords, and adjust firewall rules to block exposure to unwanted remote management services. The fix: Update libraries and instances to versions patched after February 8, 2024.

IoT 117

IoT Internet Internet Ransomware 117

SecureList

NOVEMBER 14, 2022

Looking back at past leaks of private companies providing such services, such as in the case of Hacking Team, we learned that many states all over the world were buying these capabilities, whether to complement their in-house technologies or as a stand-alone solution they couldn’t develop.

Firmware 106

Firmware Surveillance Mobile Telecommunications 106