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Linux Kernel Information Disclosure and Privilege Escalation Vulnerability Threat Alert

April 10, 2020 | Mina Hao

Vulnerability Description On March 31, the Linux kernel privilege escalation vulnerability demonstrated by the competitor Manfred Paul on the Pwn2Own contest was included in the CVE database and identified as CVE-2020-8835. This vulnerability exists because the bpf verifier in the Linux kernel does not properly calculate register bounds for certain operations. A local attacker could […]

IP Reputation Report-04052020

April 9, 2020 | Mina Hao

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 April 05, 2020.

DDoS Attack Landscape 3

April 8, 2020 | Mina Hao

DDoS Attack Type Analysis Proportions of Different Attack Types In 2019, most frequently seen attacks were UDP floods, SYN floods, and ACK floods, which together accounted for 82% of all DDoS attacks. By contrast, reflection attacks took up only 10%. Compared with 2018, reflection attacks rose slightly in number, but remained small in proportion.

What’s New in NSFOCUS’s Anti-DDoS Solution in 2020

April 7, 2020 | Mina Hao

If you are clueless about DDoS prevention in 2020 and do not understand why customers choose to adopt NSFOCUS’s anti-DDoS solution, you have to read the following contents carefully to find the answer. In 2020, ADS/NTA/ADS M V4.5R90F02 is about to be released with new functions which will enable you to win bids, upgrade your […]

A Look into RSAC 2020: NSFOCUS’s Practices in Automated Security Orchestration and Response

April 6, 2020 | Mina Hao

At RSA Conference Innovation Sandbox Contest 2020, SECURITI.ai was named “Most Innovative Startup”. The technical directions shown in this year’s contest covered external data representation (XDR), DevSecOps, and TVM+SOAR. Obviously, security operations are still one of the main directions that ignite the most efforts of innovation companies. According to the topics talked about at RSAC […]

Type1 Font Parsing 0-day Remote Code Execution Vulnerability Threat Alert

April 3, 2020 | Mina Hao

Overview On March 23, local time, Microsoft released an out-of-band security advisory ADV200006 to address two critical 0-day vulnerabilities in Adobe Type Manager Library. A vulnerability exists in Microsoft Windows when the Windows Adobe Type Manager Library improperly handles a crafted multi-master font, namely, the Adobe Type 1 PostScript format. An attacker could exploit the […]

IP Reputation Report-03292020

April 2, 2020 | Mina Hao

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 March 29, 2020.

DDoS Attack Landscape 2

April 1, 2020 | Mina Hao

DDoS Attack Counts and Peak Sizes Distribution of Peak Sizes From the monthly data in the last three years, the number of large-scale attacks (> 100 Gbps) soared in 2018 and then fluctuated at a high level over a two-year period. In 2017, the number of such attacks reached 11,800, only 48% of the number […]

Spring Cloud Config Server Path Traversal (CVE-2020-5405) Threat Alert

March 31, 2020 | Mina Hao

Vulnerability Description Security researchers from NSFOCUS found a directory traversal vulnerability (CVE-2020-5405) in the Spring Cloud Config component. On February 26, Spring released a security bulletin to announce this vulnerability and also expressed appreciation to NSFOCUS.

Windows SMBv3 Remote Code Execution Vulnerability (CVE-2020-0796) Technical Analysis and Solution

March 30, 2020 | Mina Hao

Overview On March 11, Beijing time, Microsoft released March 2020 updates to fix vulnerabilities among which is a remote code execution vulnerability in Microsoft Server Message Block 3.1.1 (SMBv3) indicated in a security bulletin released earlier. This vulnerability exists in the way the Microsoft SMBv3 protocol handles certain requests. An attacker could exploit this vulnerability […]