GitHub - fox-it/log4j-finder: Find vulnerable Log4j2 versions on disk and also i...
source link: https://github.com/fox-it/log4j-finder
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log4j-finder
A Python3 script to scan the filesystem to find Log4j2 that is vulnerable to Log4Shell (CVE-2021-44228
& CVE-2021-45046
).
It scans recursively both on disk and inside Java Archive files (JARs).
Downloading and running
You can install log4j-finder using one of the following methods:
Using the release binary
You can download the correct binary for your Operating System:
If you are on Linux you can also download the latest release and run using one of the following ways:
curl -L https://github.com/fox-it/log4j-finder/releases/latest/download/log4j-finder -o log4j-finder chmod +x log4j-finder sudo ./log4j-finder
wget https://github.com/fox-it/log4j-finder/releases/latest/download/log4j-finder -O log4j-finder chmod +x log4j-finder sudo ./log4j-finder
Using Python 3
For distribution with Python 3 installed, one following methods also work:
curl -L https://github.com/fox-it/log4j-finder/raw/main/log4j-finder.py -o log4j-finder.py sudo python3 log4j-finder.py
wget https://github.com/fox-it/log4j-finder/raw/main/log4j-finder.py sudo python3 log4j-finder.py
git clone https://github.com/fox-it/log4j-finder cd log4j-finder sudo python3 log4j-finder.py
Usage
Example usage to scan a path (defaults to /):
$ python3 log4j-finder.py /path/to/scan
Or directly a JAR file:
$ python3 log4j-finder.py /path/to/jarfile.jar
Or multiple directories and or files:
$ python3 log4j-finder.py /path/to/dir1 /path/to/dir2 /path/to/jarfile.jar
Files or directories that cannot be accessed (Permission denied errors) are not printed.
If you want to see more output, you can give the -v
flag for verbose, or -vv
for debug mode (only recommended for debugging purposes).
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