Cybersecurity-Handbook v2.0

📚 Cybersecurity Handbook A modern, open-source cybersecurity knowledge base designed to help students, professionals, and lifelong learners build practical security skills through structured notes, hands-on labs, and real-world concepts. Built with Quartz • Powered by Markdown • Community Driven ...

cve-2026-31431-checker

CVE-2026-31431 Copy Fail Detection Tool A comprehensive detection and analysis tool for CVE-2026-31431 "Copy Fail" vulnerability in Linux kernels. ⚠️ IMPORTANT DISCLAIMER This tool is for DETECTION ONLY. It does not exploit or modify any system files. Only reads system information and configuratio...

adbHijacker

CVE-2026-0073 — Android ADB TLS Authentication Bypass A proof-of-concept exploit and network scanner for CVE-2026-0073 , a critical zero-click, no-interaction remote code execution vulnerability in Android adbd's ADB-over-TCP authentication path. The vulnerability is a logic bug in...

Estudo-de-Caso-CVE-2026-31431-CopyFail

🐧 CVE-2026-31431 — CopyFail: Linux Kernel Privilege Escalation Complete Case Study — How it was discovered, how it works, how to test, how to replicate in a safe environment and how to fix the critical vulnerability that affects almost all Linux distributions since 2017. 🚨 Legal Notice / Disclaim...

CVE-2026-31431-old-python

CVE-2026-31431 مشتق من: https://github.com/theori-io/copy-fail-CVE-2026-31431/blob/main/copyfailexp.py المشكلة إصدارات بايثون الأقل من 3.10 لا تحتوي على تنفيذ os.splice. الحل غلاف Ctypes بلغة بايثون لـ splice يمكنه العمل على إصدارات بايثون القديمة تم اختباره على بايثون 3.7.3...

cfDr

cfDr - Copy Fail Doctor C opy F ail D etection and R emediation An Ansible role and playbook suite for detecting and remediating CVE-2026-31431 Copy Fail, a critical local privilege escalation vulnerability in the Linux kernel's algifaead module. Repository 🔗 GitHub :...

block-copyfail

Summary CVE-2026-31431 "Copy Fail" is a Linux kernel privilege escalation vulnerability in the algifaead cryptographic interface. An attacker uses AFALG sockets with the authencesn algorithm and splice to corrupt arbitrary files in the kernel page cache — including setuid binaries like /usr/bin/s...

copyfail-mitigation

CVE-2026-31431 — Copy Fail Linux Kernelalgifaead Privilege Escalation / Memory Corruption Ansible-based audit and mitigation playbooks — ready to run in production Overview Copy Fail CVE-2026-31431 is a vulnerability in the Linux kernel's algifaead module — the userspace-facing AEAD interface of...

copyfail-dfir

CVE-2026-31431 Copy Fail — DFIR Investigation Walkthrough An interactive, step-by-step forensic investigation walkthrough for the Copy Fail Linux kernel vulnerability CVE-2026-31431. Click through a realistic incident response scenario — from SIEM alert to confirmed verdict — using real tools and...

CVE-2026-31431-Copy-Fail-Container-Escape

CVE-2026-31431-Copy-Fail-Container-Escape Demo https://github.com/user-attachments/assets/2cb0cb67-789a-4461-a0b8-1fe878d9426e Prerequisite Container vulnerable to CVE-2026-31431 Container healthcheck configured and healthcheck CMD known Obtained root access inside the container if not, you can...

copy-fail-CVE-2026-31431-shell

CVE-2026-31431 - copyfail shell Local privilege escalation via AFALG socket + splice page-cache overwrite. Overwrites a read-only SUID binary /usr/bin/su with a minimal ELF that calls setuid0 + execve"/bin/sh". No race condition, no per-distro offsets, single shot. root@kitploit: $...

mitigate-copy-fail.yml

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copy-fail-python

copyfailsu.py Python port of badsectorlabs/copyfail-go CVE-2026-31431. Linux only; requires Python 3.10+ os.splice. How it gets root important This tool does not use the /etc/passwd page-cache trick. It overwrites the page cache of the setuidsu binary with embedded shellcode same payloads as the ...

copyfail-check

copyfail-check Shell scripts to detect Linux kernel vulnerabilities, check mitigation status, and guide remediation — designed to run locally or across fleets via SSH, Ansible, or pssh. CVE-2026-31431 — Copy Fail Copy Fail is a high-severity local privilege escalation LPE vulnerability in the Lin...

Copy-Fail---CVE-2026-31431

CVE-2026-31431 - Copy Fail - Script de detection Script Python pour verifier si un systeme Linux est vulnerable a la faille CVE-2026-31431 Copy Fail, une elevation de privileges locale dans le noyau Linux. La faille en bref Depuis 2017 commit 72548b093ee3, le module cryptographique algifaead du...

GhostShell

GhostShell CVE-2026-31431 — Local Privilege Escalation via Linux Kernel Page Cache Corruption GhostShell is a local privilege escalation tool that exploits a flaw in the Linux kernel's authencesn AEAD crypto implementation to obtain a root shell from an unprivileged user account. It corrupts the...

cve-2026-31431-check

cve-2026-31431-check cve-2026-31431-check is a small Bash triage script for checking local Linux exposure and mitigation indicators for CVE-2026-31431, also known as "Copy Fail." The script targets Debian, Ubuntu, and Debian-family derivatives including Linux Mint, Pop!OS, and similar...

Linux-copy-fail-CVE-2026-31431

CVE-2026-31431 — Copy Fail Linux Privilege Escalation Overview This repository presents a technical overview and demonstration of CVE-2026-31431 , commonly referred to as Copy Fail , a Linux kernel vulnerability that enables local privilege escalation. The vulnerability affects a wide range of...

CVE-2026-31431

CVE-2026-31431 - Copy Fail PoC Educational Proof of Concept for CVE-2026-31431 , also known as Copy Fail , a Linux kernel local privilege escalation vulnerability involving the AFALG / algifaead cryptographic interface. !WARNING This repository is provided strictly for educational, defensive, and...

ActBench v0.1.0

ActBench ActBench is a self-evolving benchmark of behavioral safety in cowork agents. It defines behavioral safety as whether an agent's execution remains within the permissions and state changes required by a benign task, and evaluates realized behavioral risk from execution trajectories rather...