CVE-2021-42013— Apache HTTP Server 安全漏洞
已观察到在野利用 cisa_kev · confirmed
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一、 漏洞 CVE-2021-42013 基础信息
漏洞信息
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Vulnerability Title
Path Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773)
来源: 美国国家漏洞数据库 NVD
Vulnerability 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.
来源: 美国国家漏洞数据库 NVD
CVSS Information
N/A
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
对路径名的限制不恰当(路径遍历)
来源: 美国国家漏洞数据库 NVD
Vulnerability Title
Apache HTTP Server 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
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。 Apache HTTP Server 存在安全漏洞，该漏洞源于发现 Apache HTTP Server 2.4.50 版本中对 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
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server | Apache HTTP Server 2.4.49 | - |
二、漏洞 CVE-2021-42013 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|---|---|---|
| 1 | Exploit with integrated shodan search | https://github.com/andrea-mattioli/apache-exploit-CVE-2021-42013 | POC详情 |
| 2 | Apache 2.4.50 Path traversal vulnerability | https://github.com/Vulnmachines/cve-2021-42013 | POC详情 |
| 3 | Docker container lab to play/learn with CVE-2021-42013 | https://github.com/twseptian/cve-2021-42013-docker-lab | POC详情 |
| 4 | None | https://github.com/LayarKacaSiber/CVE-2021-42013 | POC详情 |
| 5 | Poc CVE-2021-42013 - Apache 2.4.50 without CGI | https://github.com/TheLastVvV/CVE-2021-42013 | POC详情 |
| 6 | PoC CVE-2021-42013 reverse shell Apache 2.4.50 with CGI | https://github.com/TheLastVvV/CVE-2021-42013_Reverse-Shell | POC详情 |
| 7 | 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 | https://github.com/walnutsecurity/cve-2021-42013 | POC详情 |
| 8 | Exploit Apache 2.4.50(CVE-2021-42013) | https://github.com/robotsense1337/CVE-2021-42013 | POC详情 |
| 9 | None | https://github.com/xMohamed0/CVE-2021-42013-ApacheRCE | POC详情 |
| 10 | 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。 | https://github.com/asaotomo/CVE-2021-42013-Apache-RCE-Poc-Exp | POC详情 |
| 11 | CVE-2021-42013-exp | https://github.com/rnsss/CVE-2021-42013 | POC详情 |
| 12 | Apache HTTP Server 2.4.50 - RCE Lab | https://github.com/jas9reet/CVE-2021-42013-LAB | POC详情 |
| 13 | These Nmap, Python and Ruby scripts detects and exploits CVE-2021-42013 with RCE and local file disclosure. | https://github.com/mauricelambert/CVE-2021-42013 | POC详情 |
| 14 | None | https://github.com/honypot/CVE-2021-42013 | POC详情 |
| 15 | None | https://github.com/Adashz/CVE-2021-42013 | POC详情 |
| 16 | CVE-2021-42013 - Apache 2.4.50 | https://github.com/hadrian3689/apache_2.4.50 | POC详情 |
| 17 | Exploit for Apache 2.4.50 (CVE-2021-42013) | https://github.com/viliuspovilaika/cve-2021-42013 | POC详情 |
| 18 | Apache 2.4.49-50 Remote Code Execution Exploit | https://github.com/theykillmeslowly/CVE-2021-42013 | POC详情 |
| 19 | None | https://github.com/mightysai1997/cve-2021-42013 | POC详情 |
| 20 | None | https://github.com/mightysai1997/cve-2021-42013L | POC详情 |
| 21 | None | https://github.com/mightysai1997/cve-2021-42013.get | POC详情 |
| 22 | Vulnerable configuration Apache HTTP Server version 2.4.49/2.4.50 | https://github.com/12345qwert123456/CVE-2021-42013 | POC详情 |
| 23 | 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 | https://github.com/cybfar/cve-2021-42013-httpd | POC详情 |
| 24 | Exploring CVE-2021-42013, using Suricata and OpenVAS to gather info | https://github.com/vudala/CVE-2021-42013 | POC详情 |
| 25 | Apache 2.4.50 Automated Remote Code Execution and Path traversal | https://github.com/birdlinux/CVE-2021-42013 | POC详情 |
| 26 | None | https://github.com/Hamesawian/CVE-2021-42013 | POC详情 |
| 27 | A PoC exploit for CVE-2021-42013 - Apache 2.4.49 & 2.4.50 Remote Code Execution | https://github.com/K3ysTr0K3R/CVE-2021-42013-EXPLOIT | POC详情 |
| 28 | Apache 2.4.50 - Path Traversal or Remote Code Execution | https://github.com/Rubikcuv5/cve-2021-42013 | POC详情 |
| 29 | None | https://github.com/imhunterand/CVE-2021-42013 | POC详情 |
| 30 | CVE-2021-42013 Vulnerability Scanner This Python script checks for the Remote Code Execution (RCE) vulnerability (CVE-2021-42013) in Apache 2.4.50. | https://github.com/BassoNicolas/CVE-2021-42013 | POC详情 |
| 31 | CVE-2021-42013, a critical vulnerability in the Apache HTTP Server (2.4.50) | https://github.com/rafifdna/CVE-2021-42013 | POC详情 |
| 32 | On October 4, 2021, Apache HTTP Server Project released Security advisory on a Path traversal and File disclosure vulnerability in Apache HTTP Server 2.4.49 and 2.4.50 tracked as CVE-2021-41773 and CVE-2021-42013. In the advisory, Apache also highlighted “the issue is known to be exploited in the wild” and later it was identified that the vulnerabi | https://github.com/Jhonsonwannaa/cve-2021-42013-apache | POC详情 |
| 33 | None | https://github.com/bananoname/cve-2021-42013 | POC详情 |
| 34 | On October 4, 2021, Apache HTTP Server Project released Security advisory on a Path traversal and File disclosure vulnerability in Apache HTTP Server 2.4.49 and 2.4.50 tracked as CVE-2021-41773 and CVE-2021-42013. In the advisory, Apache also highlighted “the issue is known to be exploited in the wild” and later it was identified that the vulnerabi | https://github.com/dream434/cve-2021-42013-apache | POC详情 |
| 35 | None | https://github.com/asepsaepdin/cve-2021-42013 | POC详情 |
| 36 | None | https://github.com/asepsaepdin/CVE-2021-42013 | POC详情 |
| 37 | A flaw was found in a change made to path normalization in Apache HTTP Server 2.4.49 and 2.4.50. An attacker could use a path traversal attack to map URLs to files outside the expected document root. If files outside of the document root are not protected by "require all denied" these requests can succeed. Additionally, this flaw could leak the source of interpreted files like CGI scripts. In certain configurations, for instance if mod_cgi is enabled, this flaw can lead to remote code execution. This issue only affects Apache 2.4.49 and 2.4.50 and not earlier versions. Note - CVE-2021-42013 is due to an incomplete fix for the original vulnerability CVE-2021-41773. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-42013.yaml | POC详情 |
| 38 | None | https://github.com/Threekiii/Awesome-POC/blob/master/%E4%B8%AD%E9%97%B4%E4%BB%B6%E6%BC%8F%E6%B4%9E/Apache%20HTTP%20Server%202.4.50%20%E8%B7%AF%E5%BE%84%E7%A9%BF%E8%B6%8A%E6%BC%8F%E6%B4%9E%20CVE-2021-42013.md | POC详情 |
| 39 | None | https://github.com/Threekiii/Awesome-POC/blob/master/%E4%B8%AD%E9%97%B4%E4%BB%B6%E6%BC%8F%E6%B4%9E/Apache%20HTTPd%20%E8%B7%AF%E5%BE%84%E7%A9%BF%E8%B6%8A%E6%BC%8F%E6%B4%9E%20CVE-2021-42013.md | POC详情 |
| 40 | https://github.com/vulhub/vulhub/blob/master/httpd/CVE-2021-42013/README.md | POC详情 | |
| 41 | Una herramienta avanzada de escaneo, explotación e interacción remota diseñada para detectar y aprovechar la vulnerabilidad Apache Path Traversal + RCE (CVE-2021-42013) en servidores mal configurados. | https://github.com/Makavellik/POC-CVE-2021-42013-EXPLOIT | POC详情 |
| 42 | A powerful and reliable exploit tool for Apache HTTP Server vulnerabilities CVE-2021-41773 and CVE-2021-42013. This tool provides remote code execution capabilities on vulnerable Apache 2.4.49 and 2.4.50 servers. | https://github.com/FakhriCRD/Apache-CVE-2021-42013-RCE-Exploit | POC详情 |
| 43 | A comprehensive Python-based vulnerability scanner for detecting CVE-2021-41773 and CVE-2021-42013 path traversal and remote code execution vulnerabilities in Apache HTTP Server versions 2.4.49 and 2.4.50. | https://github.com/drackyjr/CVE-2021-42013 | POC详情 |
| 44 | None | https://github.com/ranasen-rat/cve-2021-42013 | POC详情 |
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- https://www.oracle.com/security-alerts/cpujan2022.htmlx_refsource_MISC
- https://www.oracle.com/security-alerts/cpuapr2022.htmlx_refsource_MISC
- https://www.povilaika.com/apache-2-4-50-exploit/x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20211029-0009/x_refsource_CONFIRM
- Apache HTTPD: Multiple Vulnerabilities (GLSA 202208-20) — Gentoo securityvendor-advisoryx_refsource_GENTOO
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/vendor-advisoryx_refsource_FEDORA
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2021-42013
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