一、 漏洞 CVE-2021-3156 基础信息
漏洞信息
                                        # N/A

## 漏洞概述
Sudo在1.9.5p2之前版本中存在一个off-by-one错误，该错误可能导致堆基缓冲区溢出。攻击者可以通过使用`sudoedit -s`命令加上以单个反斜杠字符结尾的命令行参数，从而提升权限到root。

## 影响版本
- Sudo 1.9.5p2之前的所有版本

## 漏洞细节
- 漏洞是由off-by-one错误导致的堆基缓冲区溢出
- 攻击者可以利用`sudoedit -s`命令和命令行参数（该参数以单个反斜杠字符结尾）来触发漏洞

## 影响
- 可以提升权限至root级别
提示
尽管我们采用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。
神龙会尽力确保数据准确，但也请结合实际情况进行甄别与判断。
神龙祝您一切顺利！
漏洞标题
N/A
来源：美国国家漏洞数据库 NVD
漏洞描述信息
Sudo before 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.
来源：美国国家漏洞数据库 NVD
CVSS信息
N/A
来源：美国国家漏洞数据库 NVD
漏洞类别
N/A
来源：美国国家漏洞数据库 NVD
漏洞标题
Sudo 缓冲区错误漏洞
来源：中国国家信息安全漏洞库 CNNVD
漏洞描述信息
Sudo是一款使用于类Unix系统的，允许用户通过安全的方式使用特殊的权限执行命令的程序。 Sudo 1.9.5p2 之前版本存在缓冲区错误漏洞，攻击者可使用sudoedit -s和一个以单个反斜杠字符结束的命令行参数升级到root。
来源：中国国家信息安全漏洞库 CNNVD
CVSS信息
N/A
来源：中国国家信息安全漏洞库 CNNVD
漏洞类别
缓冲区错误
来源：中国国家信息安全漏洞库 CNNVD
二、漏洞 CVE-2021-3156 的公开POC
# POC 描述 源链接 神龙链接
1 None https://github.com/mr-r3b00t/CVE-2021-3156 POC详情
2 None https://github.com/nexcess/sudo_cve-2021-3156 POC详情
3 CVE-2021-3156 https://github.com/reverse-ex/CVE-2021-3156 POC详情
4 None https://github.com/unauth401/CVE-2021-3156 POC详情
5 CVE-2021-3156 https://github.com/ymrsmns/CVE-2021-3156 POC详情
6 This simple bash script will patch the recently discovered sudo heap overflow vulnerability. https://github.com/elbee-cyber/CVE-2021-3156-PATCHER POC详情
7 1day research effort https://github.com/kernelzeroday/CVE-2021-3156-Baron-Samedit POC详情
8 cve-2021-3156;sudo堆溢出漏洞；漏洞检测 https://github.com/yaunsky/cve-2021-3156 POC详情
9 None https://github.com/baka9moe/CVE-2021-3156-Exp POC详情
10 CVE-2021-3156 https://github.com/ph4ntonn/CVE-2021-3156 POC详情
11 None https://github.com/binw2018/CVE-2021-3156-SCRIPT POC详情
12 None https://github.com/freeFV/CVE-2021-3156 POC详情
13 Notes regarding CVE-2021-3156: Heap-Based Buffer Overflow in Sudo https://github.com/mbcrump/CVE-2021-3156 POC详情
14 PoC for CVE-2021-3156 (sudo heap overflow) https://github.com/stong/CVE-2021-3156 POC详情
15 checking CVE-2021-3156 vulnerability & patch script https://github.com/nobodyatall648/CVE-2021-3156 POC详情
16 None https://github.com/blasty/CVE-2021-3156 POC详情
17 None https://github.com/teamtopkarl/CVE-2021-3156 POC详情
18 复现别人家的CVEs系列 https://github.com/Q4n/CVE-2021-3156 POC详情
19 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. https://github.com/kal1gh0st/CVE-2021-3156 POC详情
20 A docker environment to research CVE-2021-3156 https://github.com/apogiatzis/docker-CVE-2021-3156 POC详情
21 a simple script to patch CVE-2021-3156 (heap based buffer overflow via sudo). https://github.com/voidlsd/CVE-2021-3156 POC详情
22 Patch Script for CVE-2021-3156 Heap Overflow https://github.com/Ashish-dawani/CVE-2021-3156-Patch POC详情
23 None https://github.com/SantiagoSerrao/ScannerCVE-2021-3156 POC详情
24 CTF for HDE 64 students at See Security College. Exploit a JWT (web part) & CVE-2021-3156 (LPE part). https://github.com/DanielAzulayy/CTF-2021 POC详情
25 None https://github.com/cdeletre/Serpentiel-CVE-2021-3156 POC详情
26 CVE-2021-3156 Vagrant Lab https://github.com/dinhbaouit/CVE-2021-3156 POC详情
27 Root shell PoC for CVE-2021-3156 https://github.com/CptGibbon/CVE-2021-3156 POC详情
28 Custom version of sudo 1.8.3p1 with CVE-2021-3156 patches applied https://github.com/perlun/sudo-1.8.3p1-patched POC详情
29 None https://github.com/1N53C/CVE-2021-3156-PoC POC详情
30 CVE-2021-3156: Sudo heap overflow exploit for Debian 10 https://github.com/0xdevil/CVE-2021-3156 POC详情
31 보안취약점 확인 https://github.com/gmldbd94/cve-2021-3156 POC详情
32 sudo heap overflow to LPE, in Go https://github.com/jm33-m0/CVE-2021-3156 POC详情
33 CVE-2021-3156非交互式执行命令 https://github.com/Rvn0xsy/CVE-2021-3156-plus POC详情
34 How to solve Sudo Heap-Based Buffer Overflow Vulnerability — CVE-2021-3156? https://github.com/r3k4t/how-to-solve-sudo-heap-based-bufferoverflow-vulnerability POC详情
35 None https://github.com/oneoy/CVE-2021-3156 POC详情
36 Sudo Baron Samedit Exploit https://github.com/worawit/CVE-2021-3156 POC详情
37 Exploit generator for sudo CVE-2021-3156 https://github.com/lmol/CVE-2021-3156 POC详情
38 CVE-2021-3156漏洞修复Shell https://github.com/BearCat4/CVE-2021-3156 POC详情
39 None https://github.com/password520/CVE-2021-3156 POC详情
40 None https://github.com/capturingcats/CVE-2021-3156 POC详情
41 CVE-2021-3156 - Sudo Baron Samedit https://github.com/LiveOverflow/pwnedit POC详情
42 None https://github.com/ajtech-hue/CVE-2021-3156-Mitigation-ShellScript-Build POC详情
43 None https://github.com/donghyunlee00/CVE-2021-3156 POC详情
44 None https://github.com/TheFlash2k/CVE-2021-3156 POC详情
45 None https://github.com/Exodusro/CVE-2021-3156 POC详情
46 None https://github.com/CyberCommands/CVE-2021-3156 POC详情
47 Sudo Heap Overflow Baron Samedit https://github.com/0x7183/CVE-2021-3156 POC详情
48 None https://github.com/Y3A/CVE-2021-3156 POC详情
49 CVE-2021-3156 - sudo exploit for ubuntu 18.04 & 20.04 https://github.com/redhawkeye/sudo-exploit POC详情
50 Sudo heap-based buffer overflow privilege escalation commands and mitigations. https://github.com/d3c3ptic0n/CVE-2021-3156 POC详情
51 None https://github.com/musergi/CVE-2021-3156 POC详情
52 CVE-2021-3156 exploit https://github.com/halissha/CVE-2021-3156 POC详情
53 Exploit and Demo system for CVE-2021-3156 https://github.com/sharkmoos/Baron-Samedit POC详情
54 CVE-2021-3156 POC and Docker and Analysis write up https://github.com/chenaotian/CVE-2021-3156 POC详情
55 CVE-2021-3156 deep dive. https://github.com/ret2basic/SudoScience POC详情
56 None https://github.com/puckiestyle/CVE-2021-3156 POC详情
57 Exploit for CVE-2021-3156 https://github.com/barebackbandit/CVE-2021-3156 POC详情
58 CVE-2021-3156 https://github.com/RodricBr/CVE-2021-3156 POC详情
59 CMPT733 Cybersecurity Lab II Project: GDB plugin for heap exploits inspired by CVE-2021-3156 https://github.com/ypl6/heaplens POC详情
60 sudo提权漏洞CVE-2021-3156复现代码 https://github.com/q77190858/CVE-2021-3156 POC详情
61 CVE-2021-3156: Heap-Based Buffer Overflow in Sudo (Baron Samedit) https://github.com/arvindshima/CVE-2021-3156 POC详情
62 Visualization, Fuzzing, Exploit and Patch of Baron Samedit Vulnerability https://github.com/Mhackiori/CVE-2021-3156 POC详情
63 The test report of this exploit. https://github.com/baka9moe/CVE-2021-3156-TestReport POC详情
64 利用sudo提权，只针对cnetos7 https://github.com/PhuketIsland/CVE-2021-3156-centos7 POC详情
65 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. https://github.com/0x4ndy/clif POC详情
66 None https://github.com/meowhua15/CVE-2021-3156 POC详情
67 None https://github.com/mutur4/CVE-2021-3156 POC详情
68 Exploit for Ubuntu 20.04 using CVE-2021-3156 enhanced with post-exploitation scripts https://github.com/PurpleOzone/PE_CVE-CVE-2021-3156 POC详情
69 None https://github.com/asepsaepdin/CVE-2021-3156 POC详情
70 None https://github.com/DDayLuong/CVE-2021-3156 POC详情
71 Forked from @worawit, shorter&optimized. Only works for sudo=1.8.23 on Centos7 https://github.com/wurwur/CVE-2021-3156 POC详情
72 None https://github.com/SamTruss/LMU-CVE-2021-3156 POC详情
73 kernal exploit 3156 https://github.com/34rthq04k3/CVE-2021-3156 POC详情
74 kernal exploit 3156 https://github.com/ragingkarson/CVE-2021-3156 POC详情
75 Checker for CVE-2021-3156 with static version check https://github.com/lypd0/CVE-2021-3156-checker POC详情
76 None https://github.com/ZTK-009/CVE-2021-3156 POC详情
77 Y3A / CVE-2021-3156 https://github.com/EthicalSecurity-Agency/Y3A-CVE-2021-3156 POC详情
78 None https://github.com/DASICS-ICT/DASICS-CVE-2021-3156 POC详情
79 None https://github.com/Typical0day/CVE-2021-3156 POC详情
80 None https://github.com/hycheng15/CVE-2021-3156 POC详情
81 None https://github.com/acidburn2049/CVE-2021-3156 POC详情
82 fork of worawit/CVE-2021-3156 exploit_nss.py modified to work with ifconfig instead of the ip command https://github.com/Bad3r/CVE-2021-3156-without-ip-command POC详情
83 None https://github.com/Sebastianbedoya25/CVE-2021-3156 POC详情
84 This repository contains a Proof-of-Concept (PoC) exploit for the Baron Samedit vulnerability (CVE-2021-3156). The exploit demonstrates privilege escalation on Ubuntu 20.04 with sudo version 1.8.31 and glibc version 2.31. It includes an assembly-based exploit, a shared object payload, and a Makefile for automated compilation. https://github.com/ten-ops/baron-samedit POC详情
85 None https://github.com/Sornphut/CVE-2021-3156-Heap-Based-Buffer-Overflow-in-Sudo-Baron-Samedit- POC详情
86 Sudo before 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. https://github.com/projectdiscovery/nuclei-templates/blob/main/code/cves/2021/CVE-2021-3156.yaml POC详情
87 None https://github.com/Threekiii/Awesome-POC/blob/master/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F%E6%BC%8F%E6%B4%9E/Linux%20sudo%20%E6%9D%83%E9%99%90%E6%8F%90%E5%8D%87%E6%BC%8F%E6%B4%9E%20CVE-2021-3156.md POC详情
88 None https://github.com/shishirpandey18/CVE-2021-3156 POC详情
89 None https://github.com/duongdz96/CVE-2021-3156-main POC详情
90 None https://github.com/Shuhaib88/Baron-Samedit-Heap-Buffer-Overflow-CVE-2021-3156 POC详情
91 None https://github.com/Superliverbun/cve-2021-3156- POC详情
92 CVE-2021-3156-Exploit-Demo https://github.com/TopskiyPavelQwertyGang/Review.CVE-2021-3156 POC详情
93 Exploit para explotar la vulnerabilidad CVE-2021-3156. https://github.com/Maalfer/Sudo-CVE-2021-3156 POC详情
三、漏洞 CVE-2021-3156 的情报信息
四、漏洞 CVE-2021-3156 的评论

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