Disposal Advisory for Apache Tomcat Remote Code Execution Vulnerability (CVE-2025-24813)
March 25, 2025
Vulnerability Overview Apache Tomcat Remote Code Execution Vulnerability (CVE-2025-24813) NSFOCUS Detection Methods NSFOCUS Remote Security Assessment System (RSAS), Web Vulnerability Scanning System (WVSS) and Network Intrusion Detection System (IDS) have the ability to scan and detect this vulnerability. Users who deploy the above devices are requested to upgrade to the latest version. Upgrade site: NSFOCUS_Product Support Service_Product Upgrade […]
Apache Tomcat Remote Code Execution Vulnerability (CVE-2025-24813)
March 11, 2025
Overview Recently, NSFOCUS CERT detected that Apache issued a security announcement and fixed the remote code execution vulnerability of Apache Tomcat (CVE-2025-24813). An unauthenticated attacker can execute arbitrary code to gain server privileges when the application has servlet write enabled (disabled by default), uses Tomcat file session persistence and a default storage location, and contains […]
Apache Dubbo Deserialization Vulnerability Notice (CVE-2023-23638)
March 14, 2023
Overview Recently, NSFOCUS CERT detected that Apache officially issued a security notice, fixing an Apache Dubbo deserialization vulnerability (CVE-2023-23638). Due to the flaws in Apache Dubbo’s deserialization security check, remote attackers can construct malicious data packets to conduct deserialization attacks, and finally execute arbitrary code on the target system. Affected users are requested to take […]
Apache Hadoop Remote Code Execution Vulnerability (CVE-2022-25168) Alert
August 16, 2022
Overview Recently, NSFOCUS CERT found that Apache Hadoop officially fixed a command injection vulnerability. Since Apache Hadoop’s FileUtil.unTar API does not escape the input filename before passing it to the shell, an attacker could exploit this vulnerability to inject arbitrary commands and thus achieve remote code execution. Affected users are recommended to take steps to […]
Apache Struts Remote Code Execution Vulnerability S2-062 (CVE-2021-31805) Alert
April 14, 2022
Overview On April 13, 2022, NSFOCUS CERT detected that Struts officially issued a security notice and fixed a remote code execution vulnerability S2-062 (CVE-2021-31805). This vulnerability is not fully repaired for S2-061. When developers use the %{…} syntax to force OGNL parsing, there are still some special TAG attributes that can be parsed twice; attackers […]
Analysis of Log4j2 0-Day Vulnerability from the Perspective of Supply Chain
December 23, 2021
The outbreak of Log4j2 vulnerability has caused an uproar all over the world, with a wide range of influence and great harm second to none. The event is a typical supply chain event caused by open source software. The vulnerability of upstream software affects the products of downstream industries. The complex dependency expands the scope […]
Apache Flink Directory Traversal Vulnerability (CVE-2020-17518/17519) Threat Alert
January 13, 2021
Overview
Recently, Apache Flink announced two directory traversal vulnerabilities, CVE-2020-17518 and CVE-2020-17519. Currently, Apache Flink has released a new version to fix the preceding vulnerability. Affected users are advised to upgrade as soon as possible.
(more…)Apache DolphinScheduler High-Risk Vulnerabilities (CVE-2020-11974, CVE-2020-13922) Handling Guide
September 26, 2020
1. Vulnerability Description
On September 11, 2020, NSFOCUS detected that the Apache Software Foundation released security advisories fixing Apache DolphinScheduler permission overwrite vulnerability (CVE-2020-13922) and Apache DolphinScheduler remote code execution vulnerability (CVE-2020-11974). CVE-2020-11974 is related to mysql connectorj remote code execution vulnerability. When choosing mysql as database, an attacker could execute code remotely on the DolphinScheduler server by inputting {“detectCustomCollations”:true, “autoDeserialize”:true} through jdbc connect parameters. CVE-2020-13922 allows an ordinary user to overwrite other users’ passwords in the DolphinScheduler system through api interface /dolphinscheduler/users/update. Affected users are advised to upgrade without delay.
(more…)Apache Kylin Remote Code Execution Vulnerability (CVE-2020-1956) Threat Alert
June 9, 2020
Vulnerability Description Recently, Apache released a security advisory to announce the fix of a remote code execution vulnerability (CVE-2020-1956) in Apache Kylin. Apache Kylin has some RESTful APIs that will associate OS commands with user-typed strings. As Apache Kylin fails to properly verify user inputs, an attacker could execute arbitrary system commands without authorization. Currently, […]
Apache Solr Remote Code Execution Vulnerability (CVE-2019-0193) Threat Alert
August 13, 2019
1 Vulnerability Overview
Recently, Apache Software Foundation (ASF) issued a security bulletin to announce the fix of the remote arbitrary code execution vulnerability (CVE-2019-0193) in Apache Solr. This vulnerability exists in the DataImportHandler module, a common module used to import data from databases or other sources. The whole DIH configuration of this module can come from the dataConfig parameter included in an external request. As a DIH configuration can contain scripts, this parameter is a security risk. (more…)
