Network Security


NEWS 
  • CISA Issues Binding Operational Directive 23-01: Improving Asset Visibility and Vulnerability Detection on Federal Networks

    October 3, 2022

    CISA has issued Binding Operational Directive (BOD) 23-01: Improving Asset Visibility and Vulnerability Detection on Federal Networks, which seeks improve asset visibility and vulnerability enumeration across the federal enterprise. Although BOD 23-01 is only applicable to federal civilian executive branch (FCEB) agencies, CISA recommends all stakeholders review and incorporate the standards it sets forth. Doing so ...

  • Sophos fixes critical firewall hole exploited by miscreants

    September 28, 2022

    A critical code-injection vulnerability in Sophos Firewall has been fixed — but not before miscreants found and exploited the bug. The flaw, tracked as CVE-2022-3236, exists in the User Portal and Webadmin components of the firewall in versions 19.0 and older. While it hasn’t been issued a CVSS severity score, Sophos deemed it “critical” and noted ...

  • Domain Shadowing: A Stealthy Use of DNS Compromise for Cybercrime

    September 21, 2022

    Cybercriminals compromise domain names to attack the owners or users of the domains directly, or use them for various nefarious endeavors, including phishing, malware distribution, and command and control (C2) operations. A special case of DNS hijacking is called domain shadowing, where attackers stealthily create malicious subdomains under compromised domain names. Shadowed domains do not ...

  • MFA Fatigue: Hackers’ new favorite tactic in high-profile breaches

    September 20, 2022

    Hackers are more frequently using social engineering attacks to gain access to corporate credentials and breach large networks. One component of these attacks that is becoming more popular with the rise of multi-factor authentication is a technique called MFA Fatigue. When breaching corporate networks, hackers commonly use stolen employee login credentials to access VPNs and the ...

  • Cisco won’t fix authentication bypass zero-day in EoL routers

    September 7, 2022

    Cisco says that a new authentication bypass flaw affecting multiple small business VPN routers will not be patched because the devices have reached end-of-life (EoL). This zero-day bug (CVE-2022-20923) is caused by a faulty password validation algorithm that attackers could exploit to log into the VPN on vulnerable devices using what the company describes as “crafted ...

  • Mirai Variant MooBot Targeting D-Link Devices

    September 6, 2022

    In early August, Unit 42 researchers discovered attacks leveraging several vulnerabilities in devices made by D-Link, a company that specializes in network and connectivity products. The vulnerabilities exploited include: CVE-2015-2051: D-Link HNAP SOAPAction Header Command Execution Vulnerability CVE-2018-6530: D-Link SOAP Interface Remote Code Execution Vulnerability CVE-2022-26258: D-Link Remote Command Execution Vulnerability CVE-2022-28958: D-Link Remote Command Execution Vulnerability If the devices ...

  • Two years on, Apple iOS VPNs still leak IP addresses

    August 19, 2022

    Apple has left a VPN bypass vulnerability in iOS unfixed for at least two years, leaving identifying IP traffic data exposed, and there’s no sign of a fix. Back in early 2020, secure mail provider ProtonMail reported a flaw in Apple’s iOS version 13.3.1 that prevented VPNs from encrypting all traffic. The issue was that the ...

  • RTLS systems vulnerable to MiTM attacks, location manipulation

    August 16, 2022

    Security researchers have uncovered multiple vulnerabilities impacting UWB (ultra-wideband) RTLS (real-time locating systems), enabling threat actors to conduct man-in-the-middle attacks and manipulate tag geo-location data. RTLS technology is widely used in industrial environments, mass transit, healthcare, and smart city applications. Its primary role is to assist in safety by defining geofencing zones using tracking tags, signal ...

  • Over 9,000 VNC servers exposed online without a password

    August 14, 2022

    Researchers have discovered at least 9,000 exposed VNC (virtual network computing) endpoints that can be accessed and used without authentication, allowing threat actors easy access to internal networks. VNC (virtual network computing) is a platform-independent system meant to help users connect to systems that require monitoring and adjustments, offering control of a remote computer via RFB ...

  • Palo Alto Networks Releases Security Update for PAN-OS

    August 10, 2022

    Palo Alto Networks has released a security update to address a vulnerability in PAN-OS firewall configurations. A remote attacker could exploit this vulnerability to conduct a reflected denial-of service. CISA encourages users and administrators to review the Palo Alto Networks Security Advisory CVE-2022-0028 and apply the necessary updates or workarounds. Read more… Source: U.S. Cybersecurity and Infrastructure Security ...