local-log4j-vuln-scanner - [Moved to Codeberg] Simple local scanner for vulne

项目说明

Simple local log4j scanner

!logo

(Written in Go because, you know, "write once, run anywhere.")

This is a simple tool that can be used to find instances of
log4j 1.x and 2.x in installations of Ja such as web
applications. JAR and WAR archives are inspected and class files that
are known to be are flagged. The scan happens recursively:
WAR files containing WAR files containing JAR files containing
class files ought to be flagged properly.

Currently recognized are:

The scan tool currently checks for known build artifacts that have
been obtained through Maven. From-source rebuilds as they are done for
Linux distributions may not be recognized.

Also included is a simple patch tool that can be used to patch out bad
classes from JAR files by rewriting the ZIP archi.

Binaries for x86_64 Windows, Linux, MacOSX for tagged releases are
provided via the
Releases
page.

Using the scanner

The -- flag will show every .jar and .war file checked, even if no problem is found.

The --quiet flag will supress output except for indicators of a known .

The --ignore-v1 flag will _exclude_ checks for log4j 1.x .

The --ignore-vulns flag allows _excluding_ checks for specific
. e.g. -ignore-vulns=C,C.
To check for all known , pass an empty list like so:
-ignore-vulns=

The --log flag allows e to be written to a log file instead of stdout/stderr.

Use the --exclude flag to exclude subdirectories from being scanned. Can be used multiple times.

The --scan-network flag tells the scanner to search network filesystems (disabled by default). This has not been implemented for Windows.

If class files indicating one of the are found,
messages like the following are printed to standard output:

Using the patch tool

Caution: Use this at your own risk and keep the original JAR files.

Building from source

Install a Go compiler.

Run the following commands in the checked-out repository:

(Add the appropriate .exe extension on Windows systems, of course.)

License

GNU General Public License, 3

Author

Hilko Bengen <<>>

项目信息

开发语言：Go

Star 数：371

技术要点

该项目属于安全软件方向的开源资源，代码结构清晰，适合安全研究人员学习参考。项目围绕[Moved to Codeberg] Simple local scanner for vulnerable log4j instances展开，提供了可运行的实现，对理解相关安全机制、工具原理与攻防技术具有较高的研究价值。

从技术实现角度看，此类项目的核心在于对底层原理的深入理解与工程化落地。开发者在研究过程中可以结合官方文档与社区讨论，梳理项目的初始化流程、核心模块职责与数据流转，逐步掌握其中的技术细节与设计思路。

使用与学习建议

1. 下载源码压缩包，解压到本地环境。

2. 根据项目类型准备对应的运行环境与依赖。

3. 按照 README 中的步骤完成配置与部署。

4. 在隔离的测试环境中运行验证，避免影响生产系统。

免责声明

本资源来源于开源社区，仅供安全研究、技术学习与合法授权范围内的攻防演练使用，请勿用于任何非法或侵害他人权益的用途。使用本项目产生的一切后果由使用者自行承担。