pkexec-lpe-poc

pkexec-lpe-poc POC for CVE-2021-4034 Original Writeup For ease of use, it accepts a C file payload instead of a hardcoded shell. usage: make ./poc payload.c tested on Ubuntu 20.04.3 LTS - Linux target 5.4.0-81-generic...

pwnkit

pwnkit Usage Tested on Arch Linux and Ubuntu 18.04 git clone https://github.com/c3l3si4n/pwnkit; make ./pwnkit...

Polkit-s-Pkexec-CVE-2021-4034

CVE-2021-4034 Polkit's Pkexec CVE-2021-4034 Proof Of Concept and Patching Confirmed on fully patched Ubuntu 21.10 PoC Patching https://blog.qualys.com/vulnerabilities-threat-research/2022/01/25/pwnkit-local-privilege-escalation-vulnerability-discovered-in-polkits-pkexec-cve-2021-4034 Confirmed on...

CVE-2021-4034

CVE-2021-4034 January 25, 2022 | An00bRektn This is a golang implementation of CVE-2021-4034 based on read as: blatantly stolen from clubby789's implementation of the vulnerability discovered by Qualys. I made a blog post going into further detail about the vulnerability, mainly for myself, but f...

CVE-2021-4034

CVE-2021-4034 Exploit Usage $ git clone https://github.com/Anonymous-Family/CVE-2021-4034.git $ cd CVE-2021-4034 $ make ! CVE-2021-4034 Exploit By whokilleddb ! Initializing Setup + Setup Done :D ! Setting Root Privileges ! Launching Root Shell /bin/whoami root Rough Patch chmod 0755 which pkexec...

my-cve-2021-4034-poc

my-cve-2021-4034-poc my PoC quick and dirty code as uni has me busy, works on my ubuntu server...

ssh-hardening

SSH Hardening Lock down SSH on Debian/Ubuntu in one run: new port, no root login, key-based auth, optional UFW and Fail2Ban. What you’ll see When you run the script, it detects your OS and shows the settings before asking to continue: Quick start step-by-step 1️⃣ Install git if needed On...

cve-2017-11176

cve-2017-11176 Local Privilege Escalation develope on ubuntu 4.4.0-62 kernel about My first try to code my own LPE exploit. developement line c2bbad5f471ef2b112f343fde1f4e7ff94fe28d1 triger kernel uaf d2872d5c0d642e20c807a960f99d9533dde5d809 now,we can use another thread to unblock main thread...

CTF-2021

CTF-2021 Notes This CTF is not using DB for authentication. In addition to that, this CTF generates static tokens because of the following: 1. Minimize the chances of a user solving this CTF in a different way 2. Minimize the chances of a user missing hints by modifying or bypassing web...

wongpress

Real Case Exploitation of Buffer Overflow & Format String Vulnerabilities to Gain RCE in Ubuntu Server Related CVEs CVE-2024-2961 : Buffer overflow vulnerability in Glibc iconv function CVE-2024-29510 : Format string vulnerability in Ghostscript PostScript language interpreter 1. Problem...

polkit-CVE-2021-3560_writeup

Try Hack Me - Polkit:CVE-2021-3560 Author: Atharva Bordavekar Difficulty: Info Points: 32 Vulnerability: CVE-2021-3560 we will first check the version of the polkit version to get some better insights. apt list --installed | grep policykit-1 policykit-1/focal,now 0.105-26ubuntu1 amd64...

PwnTillDawn-Portal-Walkthrough

🔐 Vulnerability Assessment & Penetration Testing VAPT 📌 Project: Target Exploitation Walkthrough ⚠️ This project is for educational and authorized testing purposes only. Unauthorized access to systems is strictly prohibited. 👨‍💻 Author SYAFIQ Role: Lead Penetration Tester 🎯 Target Information...

ROOT-OS-UBUNTU-2204-CVE-2026-4437 CVE-2026-4437 in glibc - Patched by Root

Root has patched CVE-2026-4437 in the glibc package for Root:Ubuntu:22.04. Multiple fixed versions available...

ROOT-OS-UBUNTU-2204-CVE-2026-4438 CVE-2026-4438 in glibc - Patched by Root

Root has patched CVE-2026-4438 in the glibc package for Root:Ubuntu:22.04. Multiple fixed versions available...

Zimbra Collaboration - Unrestricted File Upload

An issue was discovered in Zimbra Collaboration ZCS 8.8.15 and 9.0. An attacker can upload arbitrary files through amavis via a cpio loophole extraction to /opt/zimbra/jetty/webapps/zimbra/public that can lead to incorrect access to any other user accounts. Zimbra recommends pax over cpio. Also,...

Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS : YAML-LibYAML vulnerabilities (USN-8925-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8925-1 advisory. Dominique Dumont discovered that YAML-LibYAML did not correctly handle certain reflection...

UBUNTU-CVE-2026-102702

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. 1 XSA-437 CVE-2023-34321 addressed issues with overflows in calculations involved in guests flushing caches through GNTTABOPcacheflush. Unfortunately the fix there...

CVE-2021-41773-Apache-Path-Traversal-Lab

Apache CVE-2021-41773 Security Lab A controlled cybersecurity lab developed during my internship at ITSOLERA PVT LTD to study and demonstrate CVE-2021-41773 , a path traversal and potential remote code execution vulnerability affecting Apache HTTP Server 2.4.49. 📌 Project Overview This project...

CPLHF

CyberPatriot Linux Hardening Toolkit A modular Bash toolkit for hardening Debian/Ubuntu-family systems under competition time pressure. Built and refined across multiple seasons of the CyberPatriot National Youth Cyber Defense Competition, most recently placing Platinum tier in the Linux division...

USN-8926-1: urllib3 vulnerabilities

Yu-Fu Fu, Seth Larson and Yonatan Magier discovered that urllib3 did not correctly handle certain certificate validations. An attacker could possibly use this issue to observe or modify forwarded traffic. This issue only affected Ubuntu 26.04 LTS. CVE-2026-97687 Martin Desrumaux discovered that...