CVE-2021-44228 PoC — Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints

Source

https://github.com/jrocia/Search-log4Jvuln-AppScanSTD

Associated Vulnerability

Title:Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints (CVE-2021-44228)
Description:Apache Log4j2 2.0-beta9 through 2.15.0 (excluding security releases 2.12.2, 2.12.3, and 2.3.1) JNDI features used in configuration, log messages, and parameters do not protect against attacker controlled LDAP and other JNDI related endpoints. An attacker who can control log messages or log message parameters can execute arbitrary code loaded from LDAP servers when message lookup substitution is enabled. From log4j 2.15.0, this behavior has been disabled by default. From version 2.16.0 (along with 2.12.2, 2.12.3, and 2.3.1), this functionality has been completely removed. Note that this vulnerability is specific to log4j-core and does not affect log4net, log4cxx, or other Apache Logging Services projects.

Description

This Pwsh script run AppScan Standard scans against a list of web sites (URLs.txt) checking for Log4J (CVE-2021-44228) vulnerability

Readme

# Search log4J vuln using AppScan Standard and a list of websites
This Powershell script run AppScan Standard scans against a list of web sites (URLs.txt) checking just for Log4J (CVE-2021-44228) vulnerability.

Structure of project:<br>
![image](https://user-images.githubusercontent.com/69405400/149555665-a4659326-b3a2-491b-b7d7-30c52769071f.png)

After run the script, it will read each line in URLs.txt and start scanning for Log4J (CVE-2021-44228) vulnerability.<br>
![image](https://user-images.githubusercontent.com/69405400/149555808-75893e5e-9ef1-48cf-8321-c6386ecbfa04.png)

After finish each scan, it will write in Log4J_Result_Analysis.txt the result.<br>
![image](https://user-images.githubusercontent.com/69405400/149566662-ae7429cf-c82e-4352-b2bc-513a0a9b2109.png)

Each scan file is in Scan folder and you can open it in AppScan Standard to see details about the vulnerability.<br>
![image](https://user-images.githubusercontent.com/69405400/149566834-0acd4eb4-0c7f-4b99-9655-035fb7553d62.png)

File Snapshot


 [4.0K]  /data/pocs/238a41ae275b88af4bd8833ee38424b677ee3310
├── [4.0K]  Log4J_Scan
│   ├── [4.0K]  policy
│   │   └── [1.2K]  Log4J.policy
│   ├── [4.0K]  report
│   │   └── [   1]  delete.txt
│   ├── [4.0K]  scan
│   │   └── [   1]  delete.txt
│   ├── [2.2K]  Start_Scan.ps1
│   └── [  52]  URLs.txt
└── [1011]  README.md

4 directories, 6 files

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