Overview Recently, NSFOCUS CERT detected that Spring Cloud officially fixed a SPEL expression injection vulnerability in Spring Cloud Function, because the parameter "spring.cloud.function.routing-expression" in the request header is processed as a Spel expression by the apply method of the RoutingFunction class in Spring Cloud Function, resulting in a Spel expression...
Category: Emergency Response
Microsoft’s March security update for multiple high-risk product vulnerabilities
Overview On March 9, NSFOCUS CERT detected that Microsoft released the March security update patch, which fixed 71 security issues, involving Windows, Exchange Server, Remote Desktop Client, Azure, etc., including privilege escalation, remote code execution and other high-risk vulnerability types. Among the vulnerabilities fixed by Microsoft's update this month, there...
1TB Multi-Vector DDoS Attack in LATAM Blocked after CVE-2022-26143 Vulnerability Exploited
In early March, NSFOCUS Cloud Scrubbing SOC team discovered that one of our customers in Latin America suffered a volumetric, multi-vector distributed denial-of-service (DDoS) attack. NSFOCUS Cloud DPS prevented this attack successfully. The captured entire attack and defense process is as follows: March 3, 10:00 a.m. GMT+8 NSFOCUS cloud-based Network...
Linux Kernel Privilege Escalation Vulnerability (CVE-2022-0847) Alert
Overview Recently, NSFOCUS CERT detected that a security researcher disclosed a local privilege escalation vulnerability (CVE-2022-0847) in the Linux kernel. Due to a flaw in the correct initialization of the copy_page_to_iter_pipe and push_pipe functions in the Linux kernel, an attacker can overwrite the data in any readable file by exploiting...
Spring Cloud Gateway Remote Code Execution Vulnerability (CVE-2022-22947) Alert
Overview Recently, NSFOCUS CERT detected that Spring released a report to fix the Spring Cloud Gateway code injection vulnerability (CVE-2022-22947). Due to a flaw in the Actuator endpoint of Spring Cloud Gateway, when a user enables and exposes an insecure Gateway Actuator endpoint, Applications using Spring Cloud Gateway are vulnerable...
Reflective and Short-burst DDoS Attacks Harnessed to Knock Down the Targets in Ukraine
Background Since 2022, the relationship between Russia and Ukraine has become increasingly tense. The two sides are at loggerheads and have deployed a large number of military personnel and equipment in the border areas of the two countries. However, since entering the 21st century, war is not limited to armed...
