open-aims/log4jPatched Log4j 1.2.17 library with the vulnerable JMSAppender class removed to mitigate CVE-2021-4104, intended as a drop-in replacement for affected applications.
This jar was created to protect against CVE-2021-4104.
It is meant to be used as a direct replacement for Log4j v1 libraries.
Log4j 1.2 project page: https://logging.apache.org/log4j/1.2/
Apache 2.0 Licence: https://www.apache.org/licenses/LICENSE-2.0
Add this to your pom.xml
<project ...>
<repositories>
<!-- Open AIMS maven repository on GitHub -->
<repository>
<id>github_openaims</id>
<name>GitHub Open-AIMS repo</name>
<url>https://maven.pkg.github.com/open-AIMS/*</url>
</repository>
</repositories>
...
<dependencies>
<dependency>
<groupId>au.gov.aims</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17-aims</version>
</dependency>
...
</dependencies>
</project>
If one of the dependencies uses another version of log4j, exclude it with the exclusions group in the dependency declaration.
Example:
<project ...>
...
<dependencies>
<dependency>
<groupId>au.gov.aims</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17-aims</version>
</dependency>
<dependency>
<groupId>uk.ac.rdg.resc</groupId>
<artifactId>edal-xml-catalogue</artifactId>
<version>1.2.4</version>
<type>jar</type>
<exclusions>
<exclusion>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
</exclusion>
</exclusions>
</dependency>
...
</dependencies>
</project>
If the project is managed by GitHub workflow, don't forget to add credentials for the
github_openaims repository in your maven-settings.xml file:
<settings ...>
...
<servers>
<!-- Used by GitHub server to resolve Open-AIMS dependencies when running tests or building the package -->
<server>
<id>github_openaims</id>
<username>${env.GITHUB_USERNAME}</username>
<password>${env.GITHUB_TOKEN}</password>
</server>
</servers>
</settings>
How this jar was created:
Copy the jar from your local maven repo to this project:
$ cp ~/.m2/repository/log4j/log4j/1.2.17/log4j-1.2.17.jar jar/log4j-1.2.17-aims.jar
Remove the offending class:
$ zip -q -d jar/log4j-1.2.17-aims.jar org/apache/log4j/net/JMSAppender.class
Create a new release on GitHub