Network Security


NEWS 
  • Security company faces backlash for waiting 12 months to disclose Palo Alto 0-day

    November 12, 2021

    There has been considerable debate within the cybersecurity community about Randori, a security firm that waited one year before disclosing a critical buffer overflow bug it discovered in Palo Alto Networks’ GlobalProtect VPN. The zero-day — which has a severity rating of 9.8 and was first reported by ZDNet — allows for unauthenticated, remote code execution ...

  • A Peek into Top-Level Domains and Cybercrime

    November 11, 2021

    Top-level domains (TLDs), such as .com, .net, .xxx and .hu, sit at the highest level of the domain name system (DNS) naming hierarchy. When users want to acquire domain names (e.g., paloaltonetworks.com), typically, they need to register them under a TLD directly or one level lower (e.g., google.co.uk). Properties and policies of TLDs such as ...

  • Massive Zero-Day Hole Found in Palo Alto Security Appliances

    November 10, 2021

    UPDATE: Researchers have a working exploit for the vulnerability (now patched), which allows for unauthenticated RCE and affects what Palo Alto clarified is an estimated 10,000 VPN/firewalls. Researchers have developed a working exploit to gain remote code execution (RCE) via a massive vulnerability in a security appliance from Palo Alto Networks (PAN), potentially leaving 10,000 vulnerable ...

  • Critical Citrix DDoS Bug Shuts Down Network, Cloud App Access

    November 10, 2021

    A critical security bug in the Citrix Application Delivery Controller (ADC) and Citrix Gateway could allow cyberattackers to crash entire corporate networks without needing to authenticate. The two affected Citrix products (formerly the NetScaler ADC and Gateway) are used for application-aware traffic management and secure remote access, respectively. The federated working specialist pushed out a security ...

  • Cloudflare report highlights devastating DDoS attacks on VoIP services and several ‘record-setting HTTP attacks’

    November 5, 2021

    Cloudflare released its Q3 DDoS Attack Trends report this week, capping a record-setting quarter that saw a number of devastating attacks on VoIP services. Cloudflare researchers said they saw the several “record-setting HTTP DDoS attacks, terabit-strong network-layer attacks and one of the largest botnets ever deployed (Meris),” noting the emergence of ransom DDoS attacks on voice ...

  • Cring ransomware continues assault on industrial organizations with aging applications, VPNs

    November 1, 2021

    The Cring ransomware group continues to make a name for itself through attacks on aging ColdFusion servers and VPNs after emerging earlier this year. Experts like Digital Shadows Sean Nikkel told ZDNet that what makes Cring interesting is that so far, they appear to specialize in using older vulnerabilities in their attacks. “In a previous incident, Cring ...

  • Network Scanning Traffic Observed in Public Clouds

    October 28, 2021

    Tracking network scanning activities can help researchers understand which services are being targeted. By monitoring the origins of the scanners, researchers can also identify compromised endpoints. If a host belonging to a known organization suddenly starts to scan a part of the internet, it is a strong indicator that the host is compromised. This blog summarizes ...

  • Lyceum group reborn

    October 18, 2021

    This year, Kaspersky researchers presented their research into the Lyceum group (also known as Hexane), which was first exposed by Secureworks in 2019. In 2021, we have been able to identify a new cluster of the group’s activity, focused on two entities in Tunisia. According to older public accounts of the group’s activity, Lyceum conducted targeted ...

  • Security Risks with Private 5G in Manufacturing Companies Part. 2

    October 15, 2021

    The steel industry is a prime area for installing Private 5G Private 5G is said to bring about the “democratization of communications.” This technology allows private companies and local governments to take the driving seat in operating the latest information communication systems. However, not all organizations have the knowledge and ability to deal with telecom technology, ...

  • Apache Web Server Zero-Day Exposes Sensitive Data

    October 5, 2021

    Apache Software has quickly issued a fix for a zero-day security bug in the Apache HTTP Server, which was first reported to the project last week. The vulnerability is under active exploitation in the wild, it said, and could allow attackers to access sensitive information. According to a security advisory issued on Monday, the issue (CVE-2021-41773) ...