Overview Recently, researchers from JFrog and Forescout released a joint report to publicly disclose 14 security vulnerabilities (collectively referred to as INFRA:HALT) in the NicheStack TCP/IP stack, announcing that these vulnerabilities could lead to remote code execution, denial of service, information disclosure, TCP spoofing, or DNS cache poisoning. Researchers noted...
Ano: 2021
Zero-Trust Cloud Native Network Security Enabled by Micro-segmentation
Traditional networks or virtual networks have employed network segregation technologies like VLAN or VPC which are, however, more often used for segregation of deterministic networks or tenant networks. In cloud native environments, containers or microservices have a shorter lifecycle and change more frequently compared with traditional networks or tenant networks....
Exim Remote Code Execution Vulnerability (CVE-2020-28020) Threat Alert
Overview In May, Qualys publicly disclosed 21 security vulnerabilities in the Exim server, announcing that these vulnerabilities affected all Exim versions released after 2004 and most of them can be exploited in default configurations. Recently, NSFOCUS found that certain vulnerability details and PoCs were publicly available. Among the vulnerabilities, the...
Microsoft August Security Updates for Multiple High-Risk Product Vulnerabilities
Overview According to NSFOCUS CERT's monitoring, Microsoft released August 2021 Security Updates on August 11 to fix 46 vulnerabilities, including high-risk remote code execution and privilege escalation, in widely used products like Windows, Microsoft Office, ASP.NET Core, Visual Studio, and Azure. This month's security updates fix seven critical vulnerabilities and...
Security Visibility Augmented by Cloud Native
In the cloud native era, containerized infrastructure makes possible much more lightweight applications that run faster. Dozens or even hundreds of containers can be rapidly deployed and run on a host. What's more, Kubernetes and other container orchestration platforms provide excellent security management mechanisms like load balancing, task scheduling, and...
Windows Privilege Escalation Vulnerability (CVE-2021-36934) Threat Alert
Overview Recently, NSFOCUS CERT discovered a critical security bulletin released by Microsoft to disclose a privilege escalation vulnerability (CVE-2021-36934) in Windows. A privilege escalation vulnerability exists because of overly permissive Access Control Lists (ACLs) on multiple system files (including the Security Account Manager (SAM) database). When a built-in administrator account...
