Vulnerability Description On October 21, 2020, NSFOCUS detected that VMware released a security advisory that fixes a VMware ESXi remote code execution vulnerability (CVE-2020-3992). This vulnerability exists because OpenSLP as used in VMware ESXi has a use-after-free issue. An attacker residing in the management network who has access to port...
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Annual IoT Security Report 2019-3
LockerGoga Ransomware Alleged to Repeatedly Attack Plants On January 24, 2019, France-based Altran Technologies was allegedly hit by LockerGoga ransomware. On March 19, Norsk Hydro, one of the largest aluminum companies worldwide, was hit by an extensive cyberattack, having machines around the globe infected with malware and some unable to...
Attack and Defense Around PowerShell Event Logging
0x00 Overview PowerShell has been a focus of concern for network defense. The fileless PowerShell, featuring LotL and excellent ease of use, is widely used in various attack scenarios. In order to capture PowerShell-based attacks, an increasing number of security professionals tend to, through PowerShell event log analysis, extract attack...
Annual IoT Security Report 2019-2
Extensive Power Outages in Venezuela and New York Starting from the evening of March 7, 2019, a cyberattack hit Venezuela, leaving most parts of the country, including the capital Caracas, without power for more than 24 hours1. Because of the outage, the subway service in Caracas came to a halt,...
WebLogic High-Risk Vulnerabilities (CVE-2020-14841, CVE-2020-14825, CVE-2020-14859) Threat Alert
Overview On October 21, 2020, Beijing time, Oracle released Critical Patch Update (CPU) for October 2020 that fixes 402 vulnerabilities of different risk levels. The WebLogic Server Core component is prone to three severe vulnerabilities with a CVSS base score of 9.8, which are assigned CVE-2020-14841, CVE-2020-14825, and CVE-2020-14859 respectively....
Annual IoT Security Report 2019-1
Executive Summary With the constant evolution of the Internet of Things (IoT), the security of IoT is becoming an issue that more and more people are concerned about. In 2016, we issued the IoT Security Whitepaper to popularize IoT security for a general audience. In 2018, we released the 2017...
