With the inevitable need to update the famous Java framework called Log4j, numerous companies are needing to update Log4j on several computers at the same time, which takes time and cost, and that's where the Log4j Updater comes in.
log4jupdater.sh is a simple bash script with the aim of automatically detecting the package manager to be used by the system and, if you have a log4j repository, update it and install the latest version possible, automating the process of updating it on multiple machines at once.
The only package managers compatible with the script are APT and YUM.
The following links can be useful to check if log4j packages exist on famous linux systems and version used:
| System | Link |
|---|---|
| CentOS | here |
| Debian | here |
| Ubuntu | here |
The script will attempt to update Log4j to the latest possible version supported by the package manager. The following versions below are considered safe against CVE-2021-44228:
- 1.X versions are all safe
- 2.X versions are only safe from 2.15.0 or above (>=2.15.0)
bash log4jupdater.sh