Resposta de Emergência

Chrome and Windows 7 32-Bit Vulnerabilities Threat Alert

março 14, 2019 | NSFOCUS

Overview On March 7 (local time), Google released a security advisory to announce the existence of a Microsoft Windows vulnerability. According to Google, this local privilege escalation vulnerability could be exploited together with the vulnerability (CVE-2019-5786) in Google Chrome announced last week, to take control of the machine of the victim.

Resource-based Constrained Delegation Allows Obtaining of System Privileges of Any Domain Hosts Threat Alert

março 12, 2019 | NSFOCUS

1 Vulnerability Overview Recently, the NSFOCUS M01N team released the Analysis of Privilege Escalation Attacks by Exploiting Resource-based Constrained Delegation, in which they describe the principle of attacks launched by exploiting the resource-based constrained delegation, so as to escalate privileges of domain hosts. For details, click the following link:

Chrome PDF File Parsing 0-Day Vulnerability Threat Alert

março 12, 2019 | NSFOCUS

1 Vulnerability Overview On February 28, 2019, a security vendor outside of China spotted a 0-day vulnerability in Google’s Chrome browser, which could lead to information disclosure upon a user’s opening of a malicious PDF file using Chrome. Up to now, a number of malicious samples have been found to exploit this vulnerability in the […]

Drupal Remote Code Execution Vulnerability (CVE-2019-6340) Threat Alert

março 2, 2019 | NSFOCUS

Overview Drupal released a security advisory, announcing remediation of a highly critical remote code execution vulnerability (CVE-2019-6430), which stems from some field types improperly sanitizing data from non-form sources, leading to potential execution of arbitrary PHP code.

Gafgy Botnet – Practitioner of the BaaS Mode

março 2, 2019 | NSFOCUS

Overview In an era of everything being connected, with the increase of IoT devices exposed on the Internet and vulnerabilities detected in them, more and more malware focuses on the inexhaustible zombie repository. Therefore, IoT platform-based malware families have undergone an exponential growth. The year 2018 alone saw 21 new variants from IoT-based botnet families.

Attack and Defense Around PowerShell Event Logging

fevereiro 27, 2019 | NSFOCUS

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 records such as post-exploitation data […]

WinRAR Code Execution Vulnerability Threat Alert

fevereiro 21, 2019 | NSFOCUS

1 Vulnerability Overview Recently, a security researcher found a logical bug in WinRAR using the WinAFL fuzzer and exploited it to gain full control over a victim’s computer. An attacker could exploit this vulnerability by crafting an archive and then tricking victims into downloading it by means of a phishing email, net disk, or forum. […]

Microsoft Security Bulletin for February 2019 Patches That Fix 79 Security Vulnerabilities

fevereiro 21, 2019 | NSFOCUS

Overview Microsoft released the January 2019 security patch on Tuesday that fixes 79 vulnerabilities ranging from simple spoofing attacks to remote code execution in various products, including .NET Framework, Adobe Flash Player, Azure, Internet Explorer, Microsoft Browsers, Microsoft Edge, Microsoft Exchange Server, Microsoft Graphics Component, Microsoft JET Database Engine, Microsoft Office, Microsoft Office SharePoint, Microsoft […]

Adobe Security Advisory for February 2019 Security Updates

fevereiro 19, 2019 | NSFOCUS

Overview On February 12, local time, Adobe officially released security bulletins and advisories to announce security updates to patch multiple vulnerabilities in such products as Adobe Flash Player, Adobe Creative Cloud Desktop Application, ColdFusion, and Adobe Acrobat and Reader.

Critical runC Container Escape Vulnerability (CVE-2019-5736) Threat Alert

fevereiro 18, 2019 | NSFOCUS

Overview RUNC is a CLI tool for spawning and running containers according to the Open Container Initiative (OCI) specification. As the core of the Docker, runC can be called for creating, running, and destructing containers.