CVE-2021-44228 PoC — Apache Log4j 代码问题漏洞

Source

https://github.com/jeremyrsellars/CVE-2021-44228_scanner

Associated Vulnerability

Title:Apache Log4j 代码问题漏洞 (CVE-2021-44228)
Description:Apache Log4j是美国阿帕奇（Apache）基金会的一款基于Java的开源日志记录工具。 Apache Log4J 存在代码问题漏洞，攻击者可设计一个数据请求发送给使用 Apache Log4j工具的服务器，当该请求被打印成日志时就会触发远程代码执行。

Description

Aims to find JndiLookup.class in nearly any directory or zip, jar, ear, war file, even deeply nested.

Readme

# File system scanner for CVE-2021-44228

Aims to find JndiLookup.class in nearly any directory or zip, jar, ear, war file, even deeply nested.

* [find-class-files](./find-class-files) – Clojure implementation should be able to run nearly anywhere Java can run, assuming there's enough disk space.
   * Given a set of file system roots (c:\my_dir or /home/home/on/the/range), shows instances of JndiLookup.class on the disk or in zips.
* [windows_cmd](./windows_cmd) – Prototype Windows scripts are batch files, but they're really slow and can get pretty verbose and they can't tell you the file hash.

File Snapshot


 [4.0K]  /data/pocs/5713ee9c6be21d157d4eb4c0b422d128677b3874
├── [4.0K]  examples
│   ├── [   0]  empty.jar
│   ├── [ 742]  jar.jar
│   ├── [  24]  JndiLookup.class
│   ├── [4.0K]  nothing_hiding_in_here
│   │   └── [   0]  just_a_file_to_make_sure_extra_files_are_handled_ok.txt
│   ├── [4.0K]  somewhere
│   │   └── [4.0K]  or
│   │       └── [4.0K]  another
│   │           └── [ 154]  JndiLookup.zip
│   └── [ 868]  uberjar.war
├── [4.0K]  find-class-files
│   ├── [   2]  deps.edn
│   └── [4.0K]  src
│       └── [4.0K]  find_class_files
│           └── [7.7K]  program.clj
├── [4.0K]  findclassfiles
│   ├── [ 326]  build_and_package.cmd
│   ├── [ 643]  findJndiLookup.cmd
│   ├── [ 255]  findJndiLookup.ps1
│   ├── [ 645]  project.clj
│   ├── [ 757]  README.md
│   └── [4.0K]  src
│       └── [4.0K]  findclassfiles
│           └── [9.4K]  program.clj
├── [ 607]  README.md
└── [4.0K]  windows_cmd
    ├── [ 380]  check_drive.cmd
    ├── [1.0K]  investigate_archive.cmd
    ├── [ 176]  investigate_archives.cmd
    ├── [ 934]  investigate_sub_archive.cmd
    ├── [273K]  investigate.txt
    ├── [ 320]  list.cmd
    └── [ 193]  runall.cmd

12 directories, 22 files

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Remarks

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