CVE-2021-42013

Description

It was found that the fix for CVE-2021-41773 in Apache HTTP Server 2.4.50 was insufficient. An attacker could use a path traversal attack to map URLs to files outside the directories configured by Alias-like directives. If files outside of these directories are not protected by the usual default configuration "require all denied", these requests can succeed. If CGI scripts are also enabled for these aliased pathes, this could allow for remote code execution. This issue only affects Apache 2.4.49 and Apache 2.4.50 and not earlier versions.

NVD
Severity: CRITICAL
CVE ID: CVE-2021-42013
CVSS Score: 9.8
CVSS Metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Refrence: NVD MITRE

Proof Of Concept

Nuclei Templates for CVE-2021-42013

Refrence: Project Discovery GitHub

andrea-mattioli

Exploit with integrated shodan search

Refrence: GitHub

Vulnmachines

Apache 2.4.50 Path traversal vulnerability

Refrence: GitHub

twseptian

Docker container lab to play/learn with CVE-2021-42013

Refrence: GitHub

LayarKacaSiber

Refrence: GitHub

TheLastVvV

Poc CVE-2021-42013 - Apache 2.4.50 without CGI

Refrence: GitHub

TheLastVvV

PoC CVE-2021-42013 reverse shell Apache 2.4.50 with CGI

Refrence: GitHub

walnutsecurity

cve-2021-42013.py is a python script that will help in finding Path Traversal or Remote Code Execution vulnerability in Apache 2.4.50

Refrence: GitHub

robotsense1337

Exploit Apache 2.4.50(CVE-2021-42013)

Refrence: GitHub

xMohamed0

Refrence: GitHub

asaotomo

Apache 远程代码执行（CVE-2021-42013）批量检测工具：Apache HTTP Server是美国阿帕奇（Apache）基金会的一款开源网页服务器。该服务器具有快速、可靠且可通过简单的API进行扩充的特点，发现 Apache HTTP Server 2.4.50 中针对 CVE-2021-41773 的修复不够充分。攻击者可以使用路径遍历攻击将 URL 映射到由类似别名的指令配置的目录之外的文件。如果这些目录之外的文件不受通常的默认配置“要求全部拒绝”的保护，则这些请求可能会成功。如果还为这些别名路径启用了 CGI 脚本，则这可能允许远程代码执行。此问题仅影响 Apache 2.4.49 和 Apache 2.4.50，而不影响更早版本。

Refrence: GitHub

rnsss

CVE-2021-42013-exp

Refrence: GitHub

jas9reet

Apache HTTP Server 2.4.50 - RCE Lab

Refrence: GitHub

tangxiaofeng7

CVE-2021-42013批量

Refrence: GitHub

mauricelambert

These Nmap, Python and Ruby scripts detects and exploits CVE-2021-42013 with RCE and local file disclosure.

Refrence: GitHub

honypot

Refrence: GitHub

Adashz

Refrence: GitHub

hadrian3689

CVE-2021-42013 - Apache 2.4.50

Refrence: GitHub

viliuspovilaika

Exploit for Apache 2.4.50 (CVE-2021-42013)

Refrence: GitHub

mightysai1997

Refrence: GitHub

mightysai1997

Refrence: GitHub

mightysai1997

Refrence: GitHub

12345qwert123456

Vulnerable configuration Apache HTTP Server version 2.4.49/2.4.50

Refrence: GitHub

cybfar

CVE: 2021-42013 Tested on: 2.4.49 and 2.4.50 Description: Path Traversal or Remote Code Execution vulnerabilities in Apache 2.4.49 and 2.4.50

Refrence: GitHub

vudala

Exploring CVE-2021-42013, using Suricata and OpenVAS to gather info

Refrence: GitHub

birdlinux

Apache 2.4.50 Automated Remote Code Execution and Path traversal

Refrence: GitHub

Hamesawian

Refrence: GitHub

K3ysTr0K3R

A PoC exploit for CVE-2021-42013 - Apache 2.4.49 & 2.4.50 Remote Code Execution

Refrence: GitHub

imhunterand

Refrence: GitHub

BassoNicolas

CVE-2021-42013 Vulnerability Scanner This Python script checks for the Remote Code Execution (RCE) vulnerability (CVE-2021-42013) in Apache 2.4.50.

Refrence: GitHub

Content on GitHub

inbug-team | watchers:148

CVE-2021-41773_CVE-2021-42013
CVE-2021-41773 CVE-2021-42013漏洞批量检测工具

Refrence: GitHub

MrCl0wnLab | watchers:60

SimplesApachePathTraversal
Tool check: CVE-2021-41773, CVE-2021-42013, CVE-2020-17519

Refrence: GitHub

Ls4ss | watchers:22

CVE-2021-41773_CVE-2021-42013
Apache HTTP Server 2.4.49, 2.4.50 - Path Traversal & RCE

Refrence: GitHub

im-hanzou | watchers:22

apachrot
Apache (Linux) CVE-2021-41773/2021-42013 Mass Vulnerability Checker

Refrence: GitHub

theLSA | watchers:8

apache-httpd-path-traversal-checker
apache httpd path traversal checker(CVE-2021-41773 / CVE-2021-42013)

Refrence: GitHub

Zeop-CyberSec | watchers:13

apache_normalize_path
Metasploit-Framework modules (scanner and exploit) for the CVE-2021-41773 and CVE-2021-42013 (Path Traversal in Apache 2.4.49/2.4.50)

Refrence: GitHub

5gstudent | watchers:4

cve-2021-41773-and-cve-2021-42013
cve-2021-41773 即 cve-2021-42013 批量检测脚本

Refrence: GitHub

CalfCrusher | watchers:5

Path-traversal-RCE-Apache-2.4.49-2.4.50-Exploit
CVE-2021-41773 | CVE-2021-42013 Exploit Tool (Apache/2.4.49-2.4.50)

Refrence: GitHub

wangfly-me | watchers:14

Apache_Penetration_Tool
CVE-2021-41773&CVE-2021-42013图形化漏洞检测利用工具

Refrence: GitHub

OfriOuzan | watchers:4

CVE-2021-41773_CVE-2021-42013_Exploits
Exploit CVE-2021-41773 and CVE-2021-42013

Refrence: GitHub

cgddgc | watchers:5

CVE-2021-41773-42013

Refrence: GitHub

zerodaywolf | watchers:1

CVE-2021-41773_42013
Lab setup for CVE-2021-41773 (Apache httpd 2.4.49) and CVE-2021-42013 (Apache httpd 2.4.50).

Refrence: GitHub

Hydragyrum | watchers:5

CVE-2021-41773-Playground
Some docker images to play with CVE-2021-41773 and CVE-2021-42013

Refrence: GitHub

blackn0te | watchers:4

Apache-HTTP-Server-2.4.49-2.4.50-Path-Traversal-Remote-Code-Execution
Apache HTTP-Server 2.4.49-2.4.50 Path Traversal & Remote Code Execution PoC (CVE-2021-41773 & CVE-2021-42013)

Refrence: GitHub

corelight | watchers:1

CVE-2021-41773
A Zeek package which raises notices for Path Traversal/RCE in Apache HTTP Server 2.4.49 (CVE-2021-41773) and 2.4.50 (CVE-2021-42013)

Refrence: GitHub

Description​

Proof Of Concept​

Content on GitHub​

Description

Proof Of Concept

Content on GitHub