ThinkPHP 5 Remote Code Execution Vulnerability Threat Alert
January 16, 2019
Overview
On January 11, ThinkPHP addressed a remote code execution vulnerability. This vulnerability stems from the Request class’s (thinkphp/library/think/Request.php) lack of sufficient input validation when handling requests, which finally leads to remote code execution. (more…)
Technical Report on Container Security (IV)-3
January 16, 2019
Container Security Protection – Host Security Host Security Hardening of Basic Host Security Containers share the operating system kernel with the host. Therefore, host configuration determines whether containers can be executed in a secure manner. For example, vulnerable software puts the host at risk of arbitrary code execution; opening ports at will exposes the host […]
Microsoft’s January 2019 Patch Fixes 51 Security Vulnerabilities Threat Alert
January 15, 2019
Overview
Microsoft released the January 2019 security patch on Tuesday that fixes 51 vulnerabilities ranging from simple spoofing attacks to remote code execution in various products, including .NET Framework, Adobe Flash Player, Android App, ASP.NET, Internet Explorer, Microsoft Edge, Microsoft Exchange Server, Microsoft JET Database Engine, Microsoft Office, Microsoft Office SharePoint, Microsoft Scripting Engine, Microsoft Windows, Microsoft XML, Servicing Stack Updates, Visual Studio, Windows COM, Windows DHCP Client, Windows Hyper-V, Windows Kernel, and Windows Subsystem for Linux. (more…)
NSFOCUS Forms Strategic Partnerships in LATAM and Around the World
January 14, 2019
By: Andre Tristao e Mello, Vice President, Latin America & Caribbean, NSFOCUS At NSFOCUS, we are always looking for ways to better serve and work with our customers — from innovative product updates to partnerships; we’re dedicated to helping and protecting our customers. Across the LATAM region, we focused many of our efforts into […]
IP Reputation Report-01112019
January 11, 2019
Top 10 countries in attack counts: The above diagram shows the top 10 regions with the most malicious IP addresses from the NSFOCUS IP Reputation databases at January 11, 2019. Top 10 countries in attack percentage: From the diagram above, we can see the region Palestinian Territory has the biggest percentage of malicious IPs. The […]
Microsoft Exchange Server Arbitrary User Impersonation Vulnerability Handling Guide
January 10, 2019
1 Vulnerability Overview
Recently, a security researcher released details of an arbitrary user impersonation vulnerability (CVE-2018-8581) in Microsoft Exchange Server (also known as Exchange Web Server, EWS for short), revealing that an authenticated attacker could exploit this vulnerability to impersonate arbitrary accounts or even gain privileges of the target user. Currently, the vulnerability’s proof of concept (PoC) has been made publicly available. However, Microsoft has not released any security patches to address it, but provided a workaround in its official security advisory. Users of this software are advised to take precautions as soon as possible. (more…)
Technical Report on Container Security (IV)-2
January 8, 2019
Container Security Protection – Container Service Security Container Service Security The security of the container management and orchestration service has a direct bearing on that of the container control plane. Take Docker for example. Whether the Docker daemon is properly configured determines the security of Docker to some extent. It is recommended that the following […]
Email Security – Attachment Virus
January 7, 2019
Case AnalysisCase Analysis
Ransomware emails usually have an intriguing subject and body to entice receivers to open the attachment. As shown above, the attachment is compressed. The virus file is an executable with the extension of js. To disguise it as a seemingly secure text file, the attacker adds .txt in the file name. Files encrypted by this virus can only be decrypted upon payment of the ransom. (more…)
Windows Arbitrary File Read 0-Day Vulnerability Handling Guide
January 7, 2019
1 Vulnerability Overview
Recently, a security researcher with Twitter alias SandboxEscaper, once again, published proof-of-concept (PoC) code for a new 0-day vulnerability affecting Windows. This is the third Windows 0-day vulnerability published by this same researcher since August 2018. The vulnerability made known to the public this time could lead to arbitrary file read. Specifically, it allows low-privileged users or malicious programs to read, but not write into, arbitrary files on a targeted Windows host. Before an official patch is released by Microsoft, all Windows users will be affected by this vulnerability. (more…)
Technical Report on Container Security (IV)-1
January 7, 2019
Container Security Protection—Linux Kernel Security Mechanism
As a lightweight virtualized implementation, the container technology took into account security factors at the time of design, which constitute an important basis for container security protection. This chapter describes security risks and threats facing containers and common protection ideas and methods. (more…)
