Apache ant log4j vulnerability9/6/2023 CISA will continue to update the webpage as additional information becomes available. CISA will continually update both the webpage and the GitHub repository.ĬISA urges organizations to review its Apache Log4j Vulnerability Guidance webpage and upgrade to Log4j version 2.15.0, or apply the appropriate vendor recommended mitigations immediately. In response, CISA has created a webpage, Apache Log4j Vulnerability Guidance and will actively maintain a community-sourced GitHub repository of publicly available information and vendor-supplied advisories regarding the Log4j vulnerability. Only applications using log4j-core and including user input in log messages are vulnerable. An unauthenticated remote actor could exploit this vulnerability to take control of an affected system. Spring Boot users are only affected by this vulnerability if they have switched the default logging system to Log4J2.The log4j-to-slf4j and log4j-api jars that we include in spring-boot-starter-logging cannot be exploited on their own. Log4j is very broadly used in a variety of consumer and enterprise services, websites, and applications-as well as in operational technology products-to log security and performance information. Ant supplies a number of built-in tasks allowing to compile, assemble, test and run Java applications. The main known usage of Ant is the build of Java applications. CISA and its partners, through the Joint Cyber Defense Collaborative, are tracking and responding to active, widespread exploitation of a critical remote code execution vulnerability (CVE-2021-44228) affecting Apache Log4j software library versions 2.0-beta9 to 2.14.1. Apache Ant is a Java library and command-line tool whose mission is to drive processes described in build files as targets and extension points dependent upon each other.
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