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Zxyel Flaw Powers New Mirai IoT Botnet Strain

Krebs on Security

In February, hardware maker Zyxel fixed a zero-day vulnerability in its routers and VPN firewall products after KrebsOnSecurity told the company the flaw was being abused by attackers to break into devices. For those devices, Zyxel’s advice was not to leave them connected to the Internet.

IoT 244
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Zyxel 0day Affects its Firewall Products, Too

Krebs on Security

Today, Zyxel acknowledged the same flaw is present in many of its firewall products. “We’ve now completed the investigation of all Zyxel products and found that firewall products running specific firmware versions are also vulnerable,” Zyxel wrote in an email to KrebsOnSecurity. Patch 0 through ZLD V4.35

Firewall 257
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VulnRecap 1/16/24 – Major Firewall Issues Persist

eSecurity Planet

Keep an eye out for security announcements from your firewall vendors; it’s possible additional similar vulnerabilities will come to light. The problem: Juniper Networks released a bulletin about a remote code execution vulnerability in its SRX firewalls and EX switches. This vulnerability is tracked as CVE-2024-21591.

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Microsoft warns of BadAlloc flaws in OT, IoT devices

Security Affairs

Microsoft researchers are warning of major security vulnerabilities affecting OT and IoT devices and high-risks for businesses using them. Researchers from Microsoft’s Section 52 team recently uncovered several critical memory allocation flaws, collectively tracked as BadAlloc , affecting IoT and OT devices.

IoT 107
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Overview of IoT threats in 2023

SecureList

IoT devices (routers, cameras, NAS boxes, and smart home components) multiply every year. The first-ever large-scale malware attacks on IoT devices were recorded back in 2008, and their number has only been growing ever since. Telnet, the overwhelmingly popular unencrypted IoT text protocol, is the main target of brute-forcing.

IoT 86
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IoT garage door exploit allows for remote opening attack

Malwarebytes

From the CISA mitigations page, which doesn’t go quite as far as Sabetan’s advice to remove all of the Nexx products from your home or place of business: Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the Internet.

IoT 93
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Why BYOD Is the Favored Ransomware Backdoor

eSecurity Planet

This category also includes routers, switches, and Internet of Things (IoT) devices that can’t install traditional endpoint protection such as antivirus (AV) or endpoint detection and response (EDR) solutions. NGFWs can decrypt and inspect VPN traffic to monitor file exfiltration as well as detect increased and anomalous traffic.