log4jscanner - A log4j vulnerability filesystem scanner and Go pa

项目说明

log4jscanner

![Go Reference]()

A log4j filesystem scanner and Go package for analyzing JAR files.

Installing

Pre-compiled binaries are a as [release assets][releases].

To install from source with an existing [Go][go] v1.17+ installation, either
use [go install][go-install]:

Or build from the repo directly:

[go]:
[go-install]:
[releases]:

Command line tool

This project includes a scanner that walks directory, printing any detected JARs
to stdout.

Optionally, the --rewrite flag can actively remove the class from
detected JARs in-place.

On MacOS, you can scan the entire data directory with:

The scanner can also skip directories by passing glob patterns. On Linux, you
may choose to scan the entire root filesystem, but skip site-specific paths
(e.g. the /data/* directory). By default log4jscanner will not scan magic
filesystems, such as /proc and /sys.

For hea, such as reporting to external endpoints, much of the
tool's logic is exposed through the [jar.Walker][jar-walker] API.

[jar-walker]:

Package

Parsing logic is a through the jar package, and can be used to scan
assets stored in other code repositories. Because JARs use the ZIP format, this
package operates on [archive/zip.Reader][zip-reader].

[zip-reader]:

See the examples/ directory for full programs.

False positives

False positives have been observed for the scanner. Use caution when rewriting
JARs automatically or taking other mitigations based on scan results.

If you do hit a false positi open an issue.

Note: This scanner purposefully flags the patched of log4j for Java 6
and Java 7 as .

Contributors

We unfortunately had to squash the history when open sourcing. The following
contributors were instrumental in this project's de:

项目信息

开发语言：Go

Star 数：1560

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A log4j vulnerability filesystem scanner and Go package for analyzing JAR files.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。