Network Security


NEWS 
  • Shining a Light on SolarCity: Practical Exploitation of the X2e IoT Device

    February 17, 2021

    In 2019, Mandiant’s Red Team discovered a series of vulnerabilities present within Digi International’s ConnectPort X2e device, which allows for remote code execution as a privileged user. Specifically, Mandiant’s research focused on SolarCity’s (now owned by Tesla) rebranded ConnectPort X2e device, which is used in residential solar installations. Mandiant performs this type of work both ...

  • Cybersecurity Risks of Connected Cars

    February 16, 2021

    As the use of connected cars becomes more common, the technologies that power or support these vehicles continue to evolve. This provides a host of benefits, but just like any other technology, this new territory comes with some risks. In our paper, we add some substantial information to our research from last year, in order ...

  • Fortinet fixes critical vulnerabilities in SSL VPN and web firewall

    February 7, 2021

    Fortinet has fixed multiple severe vulnerabilities impacting its products. The vulnerabilities range from Remote Code Execution (RCE) to SQL Injection, to Denial of Service (DoS) and impact the FortiProxy SSL VPN and FortiWeb Web Application Firewall (WAF) products. Multiple advisories published by FortiGuard Labs this month and in January 2021 mention various critical vulnerabilities that Fortinet has ...

  • Signal ignores proxy censorship vulnerability, bans researchers

    February 7, 2021

    Signal, an end-to-end encrypted messaging platform was recently blocked by the Iranian government. To help its users bypass censorship in Iran, the company suggested a TLS proxy workaround. However, multiple researchers have now discovered flaws in the workaround that can let a censor or government authority probe into Signal TLS proxies, rendering these protections moot and potentially ...

  • Cisco warns of critical remote code execution flaws in its small business VPN routers

    February 5, 2021

    Cisco is warning customers using its small business routers to upgrade the firmware to fix flaws that could give remote attackers root level access to the devices. The critical flaws affect the Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers. These were the models Cisco recommended customers using unsupported small business routers to ...

  • Hackers steal StormShield firewall source code in data breach

    February 4, 2021

    Leading French cybersecurity company StormShield disclosed that their systems were hacked, allowing a threat actor to access the company’s support ticket system and steal source code for Stormshield Network Security firewall software. StormShield is a French cybersecurity firm that develops UTM (Unified Threat Management) firewall devices, endpoint protection solutions, and secure file management solutions. StormShield’s SNi40 is ...

  • Trickbot malware now maps victims’ networks using Masscan

    February 2, 2021

    The Trickbot malware has been upgraded with a network reconnaissance module designed to survey local networks after infecting a victim’s computer. This new module, dubbed masrv, uses the open-source masscan tool, a mass port scanner with its own TCP/IP stack and capable of scanning large swaths of the Internet in a matter of minutes. Trickbot uses the ...

  • SonicWall zero-day exploited in the wild

    February 1, 2021

    Cyber-security firm the NCC Group said on Sunday that it detected active exploitation attempts against a zero-day vulnerability in SonicWall networking devices. Details about the nature of the vulnerability have not been made public to prevent other threat actors from studying it and launching their own attacks. “We’ve seen it used by a single threat actor earlier ...

  • SonicWall firewall maker hacked using zero-day in its VPN device

    January 23, 2021

    Security hardware manufacturer SonicWall has issued an urgent security notice about threat actors exploiting a zero-day vulnerability in their VPN products to perform attacks on their internal systems. SonicWall is a well-known manufacturer of hardware firewall devices, VPN gateways, and network security solutions whose products are commonly used in SMB/SME and large enterprise organizations. On Friday night, ...

  • Network Attack Trends: Internet of Threats

    January 22, 2021

    Unit 42 researchers observed interesting attack trends from August-October 2020. Despite a surge in scanner activities and HTTP directory traversal exploitation attempts, CVE-2012-2311 and CVE-2012-1823, which were the most commonly exploited vulnerabilities in the wild in early summer 2020, are no longer at the top of that list. Several new critical exploits, including but not ...

  • NSA urges system administrators to replace obsolete TLS protocols

    January 20, 2021

    The US National Security Agency has issued a security advisory this month urging system administrators in federal agencies and beyond to stop using old and obsolete TLS protocols. “NSA recommends that only TLS 1.2 or TLS 1.3 be used; and that SSL 2.0, SSL 3.0, TLS 1.0, and TLS 1.1 not be used,” the agency ...

  • VPNFilter Two Years Later: Routers Still Compromised

    January 19, 2021

    With the internet of things (IoT) gaining more popularity, common IoT devices such as routers, printers, cameras, and network-attached storage (NAS) devices, are becoming more frequent targets for cybercriminals. Unlike typical operating systems such as Windows and macOS, users are less likely to patch IoT devices. This is because users find the task more difficult and ...

  • DNSpooq bugs let attackers hijack DNS on millions of devices

    January 19, 2021

    Israel-based security consultancy firm JSOF disclosed today seven Dnsmasq vulnerabilities, collectively known as DNSpooq, that can be exploited to launch DNS cache poisoning, remote code execution, and denial-of-service attacks against millions of affected devices. Dnsmasq is a popular and open-source Domain Name System (DNS) forwarding software regularly used that adds DNS caching and Dynamic Host Configuration ...

  • Apple removes feature that allowed its apps to bypass macOS firewalls and VPNs

    January 14, 2021

    Apple has removed a controversial feature from the macOS operating system that allowed 53 of Apple’s own apps to bypass third-party firewalls, security tools, and VPN apps installed by users for their protection. Known as the ContentFilterExclusionList, the list was included in macOS 11, also known as Big Sur. The exclusion list included some of Apple’s biggest ...

  • NSA Recommends How Enterprises Can Securely Adopt Encrypted DNS

    January 14, 2021

    The National Security Agency released a cybersecurity product, “Adopting Encrypted DNS in Enterprise Environments,” Thursday explaining the benefits and risks of adopting the encrypted domain name system (DNS) protocol, DNS over HTTPs (DoH), in enterprise environments. The release provides solutions for secure implementation based on enterprise network needs. DNS translates domain names in URLs into IP ...

  • CISCO says it won’t patch 74 security bugs in older RV routers that reached EOL

    January 14, 2021

    Networking equipment vendor Cisco said yesterday it was not going to release firmware updates to fix 74 vulnerabilities that had been reported in its line of RV routers, which had reached end-of-life (EOL). Affected devices include Cisco Small Business RV110W, RV130, RV130W, and RV215W systems, which can be used as both routers, firewalls, and VPNs. All four ...

  • Backdoor account discovered in more than 100,000 Zyxel firewalls, VPN gateways

    January 2, 2021

    More than 100,000 Zyxel firewalls, VPN gateways, and access point controllers contain a hardcoded admin-level backdoor account that can grant attackers root access to devices via either the SSH interface or the web administration panel. The backdoor account, discovered by a team of Dutch security researchers from Eye Control, is considered as bad as it gets ...

  • The History of DNS Vulnerabilities and the Cloud

    December 28, 2020

    Every now and then, a new domain name system (DNS) vulnerability that puts billions of devices around the world at risk is discovered. DNS vulnerabilities are usually critical. Just imagine that you browse to your bank account website, but instead of returning the IP address of your bank website, your DNS resolver gives you the ...

  • Law enforcement take down three bulletproof VPN providers

    December 22, 2020

    Law enforcement agencies from the US, Germany, France, Switzerland, and the Netherlands have seized this week the web domains and server infrastructure of three VPN services that provided a safe haven for cybercriminals to attack their victims. The three services were active at insorg.org , and safe-inet.net before the domains were seized ...

  • Protecting Against an Unfixed Kubernetes Man-in-the-Middle Vulnerability (CVE-2020-8554)

    December 21, 2020

    On Dec. 4, 2020, the Kubernetes Product Security Committee disclosed a new Kubernetes vulnerability assigned CVE-2020-8554. It is a medium severity issue affecting all Kubernetes versions and is currently unpatched. CVE-2020-8554 is a design flaw that allows Kubernetes Services to intercept cluster traffic to any IP address. Users who can manage services can exploit the ...