CVE-2022-1471 PoC — SnakeYAML 代码问题漏洞

Source

https://github.com/1fabunicorn/SnakeYAML-CVE-2022-1471-POC

Associated Vulnerability

Title:SnakeYAML 代码问题漏洞 (CVE-2022-1471)
Description:SnakeYAML是一款基于Java的YAML解析器。 SnakeYaml存在代码问题漏洞，该漏洞源于不限制在反序列化期间可以实例化的类型。攻击者利用该漏洞可以远程执行代码。

Description

Code for veracode blog

Readme

# SnakeYAML-CVE-2022-1471-POC
Code for veracode blog

To demonstrate the Code Execution, 
1. Build the project using maven 
2. Execute `python3 -m http.server 8080` to run the http server
3. Run `exploit.java`. You should observe a HTTP GET request on the server
4. To demonstrate how SnakeYAML 2.0 prevents the attack, comment out the 1.33 dependency in the `pom.xml`
5. Uncomment the 2.0 dependency, then rebuild the project, 
6. Comment out `exploit.java` and uncomment `Poc.java`
7. Run `Poc.java` and observe no GET request

File Snapshot


 [4.0K]  /data/pocs/e562d5919f84ec5ca40c5e67d6aa222bdd0a9773
├── [1.1K]  pom.xml
├── [ 529]  README.md
└── [4.0K]  src
    └── [4.0K]  main
        └── [4.0K]  java
            └── [4.0K]  org
                └── [4.0K]  example
                    ├── [ 756]  exploit.java
                    └── [1.2K]  Poc.java

5 directories, 4 files

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