Network Security


NEWS 
  • Bluetooth flaws allow attackers to impersonate legitimate devices

    May 24, 2021

    Attackers could abuse vulnerabilities discovered in the Bluetooth Core and Mesh Profile specifications to impersonate legitimate devices during the pairing process and launch man-in-the-middle (MitM) attacks. The Bluetooth Core and Mesh Profile specifications define requirements needed by Bluetooth devices to communicate with each other and for Bluetooth devices using low energy wireless technology to enable interoperable ...

  • NAME:WRECK DNS Bugs: What You Need to Know

    May 9, 2021

    For most internet users, there’s not much of a perceivable difference between the domain name they want to visit and the server that the domain queries. That’s because the Domain Name System (DNS) protocol does a good job of seamlessly routing users to different IP addresses that are all associated with a single domain name. The ...

  • New TsuNAME DNS bug allows attackers to DDoS authoritative DNS servers

    May 6, 2021

    Attackers can use a newly disclosed domain name server (DNS) vulnerability publicly known as TsuNAME as an amplification vector in large-scale reflection-based distributed denial of service (DDoS) attacks targeting authoritative DNS servers. In simpler terms, authoritative DNS servers translate web domains to IP addresses and pass this info to recursive DNS servers that get queried by ...

  • US Department of Defense expands its bug hunting programme to networks, IoT and more

    May 5, 2021

    The US Department of Defense (DOD) has significantly expanded its bug bounty program to all publicly accessible information systems, including not just websites but also networks, frequency-based communication, Internet of Things, and industrial control systems. The DoD bug bounty, which is overseen by the DoD’s Cyber Crime Center (DC3), is now much broader than the “Hack ...

  • The big Pentagon internet mystery now partially solved

    April 24, 2021

    A very strange thing happened on the internet the day President Joe Biden was sworn in. A shadowy company residing at a shared workspace above a Florida bank announced to the world’s computer networks that it was now managing a colossal, previously idle chunk of the internet owned by the U.S. Department of Defense. That real ...

  • Malware and ransomware gangs have found this new way to cover their tracks

    April 22, 2021

    Theres’s been a huge uptick in the proportion of malware using TLS or the Transport Layer Security to communicate without being spotted, cybersecurity firm Sophos reports. While HTTPS helps prevent eavesdropping, man-in-the-middle attacks, and hijackers who try to impersonate a trusted website, the protocol has also offered cover for cybercriminals to privately share information between a ...

  • HTTPS over HTTP: A Supply Chain Attack on Azure DevOps Server 2020

    April 13, 2021

    The need for data encryption during transmission has paved the way for organizations to rely on TLS — not just for sending data through the internet, but even within trusted corporate environments. Without the use of TLS or SSL, the authenticity of transmitted data and the identity of endpoint can’t be verified. In this blog, we ...

  • NAME:WRECK DNS vulnerabilities affect over 100 million devices

    April 13, 2021

    Security researchers today disclosed nine vulnerabilities affecting implementations of the Domain Name System protocol in popular TCP/IP network communication stacks running on at least 100 million devices. Collectively referred to as NAME: WRECK, the flaws could be leveraged to take offline affected devices or to gain control over them. The vulnerabilities were found in widespread TCP/IP stacks ...

  • Winter 2020 Network Attack Trends: Internet of Threats

    April 12, 2021

    Unit 42 researchers analyzed network attack trends over Winter 2020 and discovered many interesting exploits in the wild. During the period of Nov. 2020 to Jan. 2021, the majority of the attacks we observed were classified as critical (75%), compared to the 50.4% we reported in the fall of 2020. Several newly observed exploits, including ...

  • Critical security alert: If you haven’t patched old Fortinet VPN vulnerability, assume your network is compromised

    April 12, 2021

    Cyber criminals and nation-state cyber-espionage operations are actively scanning for unpatched vulnerabilities in Fortinet VPNs; organisations that use Fortigate firewalls on their network, and have yet to apply a critical security update released almost two years ago, should assume they’ve been compromised and act accordingly. The alert from the National Cyber Security Centre (NCSC) follows a ...