Overview On April 6, Sangfor released an advisory, announcing that an overseas APT organization illegally took control of some of their SSL VPN devices and sent malicious files to clients by exploiting a client upgrade vulnerability. NSFOCUS has kept a close eye on this issue and conducted overall analysis. We...
Category: Emergency Response
WebSphere Application Server Remote Code Execution Vulnerability (CVE-2020-4276 and CVE-2020-4362) Threat Alert
Overview IBM released security advisories to announce the fix of two remote code execution vulnerabilities (CVE-2020-4276 and CVE-2020-4362) in WebSphere Application Server. The two vulnerabilities exist when WebSphere uses token-based authentication in an admin request over the SOAP connector. By sending a maliciously crafted request to WebSphere SOAP Connector, an...
Vollgar Botnet Threat Alert
Overview On April 1, the Guardicore Labs team uncovered a long-running attack campaign which aims to infect Windows machines running MS-SQL servers. At least since May 2018, the campaign uses password brute force to breach victim machines, deploys multiple backdoors, and executes numerous malicious modules, such as remote access tools...
Linux Kernel Information Disclosure and Privilege Escalation Vulnerability Threat Alert
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...
Type1 Font Parsing 0-day Remote Code Execution Vulnerability Threat Alert
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....
Spring Cloud Config Server Path Traversal (CVE-2020-5405) Threat Alert
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. (more…)
