cve-2026-31431

CVE-2026-31431 — "Copy Fail" Research Repository A 100% reliable Linux local privilege escalation affecting every mainstream distribution since 2017. One logic bug in authencesn, chained through AFALG and splice into a 4-byte page-cache write — silently exploitable for nearly a decade. ⚠️...

COPY-FAIL-Detection-with-Wazuh-4.14.4

COPY FAIL Detection with Wazuh 4.14.4 - CVE-2026-31431 Detection engineering for the Copy Fail kernel LPE · Ubuntu / RHEL / SUSE / Amazon Linux 2023 / Kali What is Copy Fail? CVE-2026-31431 is a logic bug in the Linux kernel's authencesn cryptographic template. It allows any unprivileged local us...

CVE-2026-31431-Linux-Copy-Fail

CVE-2026-31431 - Linux Copy-Fail エクスプロイト Rust CVE-2026-31431 Copy-Fail に対するローカル権限昇格エクスプロイトの Rust 実装です。 カスタマイズしたシェルコード（Meterpreter など）を実行できます。 はじめに Xint 氏は CVE-2026-31431 を公開しました。これは、AFALG と splice を連鎖させて 4 バイト書き込みプリミティブを実現する、任意のページキャッシュ書き込みの脆弱性です。 ソース: Copy Fail: 732 Bytes to Root on Every Major...

CVE-2026-31431

Copy Fail CVE-2026-31431 - Comprehensive Writeup 1. Vulnerability Overview Vulnerability Name: Copy Fail CVE Identifier: CVE-2026-31431 Discovered By / Authors: Xint Code Research Team building upon initial foundational research by Theori researcher Taeyang Lee. "Copy Fail" is a critical logic...

copyfail2_electric_boogaloo_fix

copyfail2electricboogaloofix copyfail 변형copyfail2electricboogaloo에 대한 임시 완화 조치 - xfrm ESP-in-UDP MSGSPLICEPAGES no-COW 빠른 경로를 통한 권한 없는 Linux LPE. 읽을 수 있는 임의의 파일에 페이지-캐시 쓰기를 수행합니다. /etc/passwd의 nologin 줄을 sick::0:0:…:/:/bin/bash로 덮어쓰고 sus로 전환합니다. Copy FailCVE-2026-31431과 동일한 클래스이며, 다른 하위 시스템입니다. 중...

cve-2026-31431-mitigation

CVE-2026-31431 seccomp Mitigation A lightweight, reversible seccomp-based mitigation for CVE-2026-31431, a local privilege escalation vulnerability in the Linux kernel's algifaead / authencesn crypto subsystem. 中文文档 Vulnerability Overview Type: Local Privilege Escalation LPE Affected Component:...

cve-2026-31431

CVE-2026-31431 Copy Fail Toolkit This repository contains detectors and a PoC for the Linux algifaead / authencesn page-cache scratch-write vulnerability CVE-2026-31431. Disclosure article: https://xint.io/blog/copy-fail-linux-distributions Authorization Notice Only use this on hosts you own or...

CVE-2026-46300

CVE-KERNEL · Linux内核LPE链 针对Linux内核漏洞的多CVE本地权限提升链 uid=1000 → root 通过xfrm-ESP、RxRPC或Fragnesia页面缓存写入 概述 CVE-KERNEL 是一个基于Python的本地权限提升（LPE）工具，它通过链式利用多个Linux内核CVE，将非特权用户提升为root。该漏洞利用指向通过内核网络子系统的页面缓存损坏原语。 由MadExploits 修改 — 界面重设计、彩色终端输出以及改进的漏洞利用流程展示。 CVE| 向量| 目标 ---|---|--- CVE-2026-43284| xfrm-ESP|...

CVE-2026-31431-Copy-Fail-add-arm64

Vulnerability Overview Item| Content ---|--- CVE ID| CVE-2026-31431 Vulnerability Name| Copy Fail Vulnerability Type| Linux Kernel Local Privilege Escalation LPE CVSS 3.1 Score| 7.8 HIGH CWE| CWE-669: Incorrect Resource Transfer Between Spheres Affected Scope| All Linux kernels built between 2017...

copy-fail-CVE-2026-31431

Vulnerability Description Root Cause In 2017, the Linux kernel crypto module authencesn introduced an in-place optimization for AEAD Authenticated Encryption with Associated Data operations. This optimization caused read-only pages in the page cache to be incorrectly placed into a writable...

CVE-2026-43284

🚨 CVE-2026-43284 - Dirty Frag 🚨 通用 Linux 内核本地权限提升 📋 概述 Dirty Frag （又称 Copy Fail 2 ）是 Linux 内核中一个影响重大的本地权限提升漏洞。它允许无特权的本地用户 在受影响的系统上获得 root 权限。 由 Hyunwoo Kim（@v4bel） 发现，是早期 Copy Fail 漏洞的后续版本。 关键细节 CVE ：CVE-2026-43284（xfrm/ESP）+ CVE-2026-43500（RxRPC） 严重性 ：高（CVSS 7.8） 利用方式 ：可靠、确定性高，单条命令即可获得 root 披露日期...

copyfail-rs

copyfail-rs CVE-2026-31431（Copy Fail）のRust実装 — AFALG spliceを介したLinuxカーネルのページキャッシュ書き込みプリミティブ。 中文文档 / Chinese README CVE-2026-31431 Linuxカーネルのalgifaead実装では、権限のないユーザーがspliceシステムコールを介して、読み取り可能な任意のファイルのページキャッシュに任意のデータを書き込むことができます。authencesn AEADアルゴリズムは、seqnolo（ユーザー制御のAADバイト4〜7）をオフセットassoclen +...

Dirty-Frag-Analysis

Dirty Frag Deep Technical Analysis CVE-2026-43284 xfrm-ESP / CVE-2026-43500 RxRPC Linux kernel local privilege escalation vulnerability — PoC reverse engineering · Shellcode breakdown · Patch principles · Detection script Vulnerability Overview Dirty Frag exploits two independent vulnerabilities,...

CVE-2026-43284

Dirty Frag: LPE universal en Linux Abstract Este documento explica la clase de vulnerabilidad Dirty Frag, descubierta y reportada por Hyunwoo Kim @v4bel. Al encadenar xfrm-ESP Page-Cache Write CVE-2026-43284 con RxRPC Page-Cache Write CVE-2026-43500, un atacante puede escalar a root en las...

dirtyfrag

Dirty Frag: LPE Linux universale Sommario Questo documento descrive la classe di vulnerabilità Dirty Frag, scoperta e segnalata per la prima volta da Hyunwoo Kim @v4bel, che può ottenere privilegi di root sulle principali distribuzioni Linux combinando la vulnerabilità xfrm-ESP Page-Cache Write...

CVE-2026-43284-dirtyfrag-detection

Verifica PoC e Rilevamento auditd per DirtyFrag CVE-2026-43284 Ambito: Verifica di escalation locale dei privilegi LPE su Linux incentrata sul percorso XFRM/ESP associato a CVE-2026-43284. Questo repository contiene un report in inglese e artefatti di prova da una validazione di laboratorio...

CVE-2026-31431

🐞 CVE-2026-31431 - Copy Fail Una falla logica in authencesn incatenata attraverso AFALG e splice in una scrittura controllata di 4 byte nella cache delle pagine di qualsiasi file leggibile sul sistema. Nessuna condizione di gara, nessun offset, nessun payload compilato. Lo stesso script di 732 by...

copy-fail-cve-2026-31431-linux-kernel-page-cache-lpe

Copy Fail CVE-2026-31431 - Verifica vulnerabilità Script di validazione concettuale per CVE-2026-31431 "Copy Fail" — un'escalation locale dei privilegi del kernel Linux tramite scrittura nella page cache di algifaead. Vulnerabilità CVE-2026-31431 è un bug logico nel template AEAD authencesn del...

CVE-2022-22706-poc

CVE-2022-22706 - Page-Cache-Schreiben Der Arm-Mali-GPU-Treiber übergibt dem Userspace eine CPU-beschreibbare Abbildung von Seiten, die er schreibgeschützt gepinnt hat, sodass ein unprivilegierter Prozess einen beschreibbaren Alias des Page-Cache erhält, der eine Datei unterstützt, die er nur mit...

Copyfail-sh

copyfail-sh Nessuna race. Nessun offset. Nessun binario precompilato di cui fidarsi alla cieca. Un'implementazione in bash di CVE-2026-31431 Copy Fail. Lo script compila un helper C minimale inline in fase di esecuzione. Il livello bash gestisce il rilevamento dell'architettura, la decompressione...