Known Exploited Vulnerability
9.8
CRITICAL
CVE-2021-42013
Apache HTTP Server Path Traversal Vulnerability - [Actively Exploited]
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.

INFO

Published Date :

Oct. 7, 2021, 4:15 p.m.

Last Modified :

Nov. 21, 2024, 6:27 a.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

Apache HTTP Server contains a path traversal vulnerability that allows an attacker to perform remote code execution if files outside directories configured by Alias-like directives are not under default require all denied or if CGI scripts are enabled. This CVE ID resolves an incomplete patch for CVE-2021-41773.

Required Action :

Apply updates per vendor instructions.

Notes :

https://nvd.nist.gov/vuln/detail/CVE-2021-42013

Public PoC/Exploit Available at Github

CVE-2021-42013 has a 158 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-42013 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Oracle jd_edwards_enterpriseone_tools
2 Oracle secure_backup
3 Oracle instantis_enterprisetrack
1 Fedoraproject fedora
1 Netapp cloud_backup
1 Apache http_server
: Total Affected Vendor : 4 | Products : 6
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-42013.

URL Resource
http://jvn.jp/en/jp/JVN51106450/index.html Third Party Advisory
http://packetstormsecurity.com/files/164501/Apache-HTTP-Server-2.4.50-Path-Traversal-Code-Execution.html Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/164609/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/164629/Apache-2.4.49-2.4.50-Traversal-Remote-Code-Execution.html Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/164941/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/165089/Apache-HTTP-Server-2.4.50-CVE-2021-42013-Exploitation.html Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/167397/Apache-2.4.50-Remote-Code-Execution.html Exploit Third Party Advisory VDB Entry
http://www.openwall.com/lists/oss-security/2021/10/07/6 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/1 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/2 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/3 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/4 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/5 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/6 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/09/1 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/11/4 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/15/3 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/16/1 Mailing List Third Party Advisory
https://httpd.apache.org/security/vulnerabilities_24.html Release Notes Vendor Advisory
https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3%40%3Ccvs.httpd.apache.org%3E Mailing List Patch
https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837%40%3Cannounce.apache.org%3E Mailing List
https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb%40%3Cusers.httpd.apache.org%3E Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RMIIEFINL6FUIOPD2A3M5XC6DH45Y3CC/ Release Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/ Release Notes
https://security.gentoo.org/glsa/202208-20 Third Party Advisory
https://security.netapp.com/advisory/ntap-20211029-0009/ Third Party Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZ Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.html Patch Third Party Advisory
https://www.povilaika.com/apache-2-4-50-exploit/ Exploit Third Party Advisory
http://jvn.jp/en/jp/JVN51106450/index.html Third Party Advisory
http://packetstormsecurity.com/files/164501/Apache-HTTP-Server-2.4.50-Path-Traversal-Code-Execution.html Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/164609/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/164629/Apache-2.4.49-2.4.50-Traversal-Remote-Code-Execution.html Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/164941/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/165089/Apache-HTTP-Server-2.4.50-CVE-2021-42013-Exploitation.html Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/167397/Apache-2.4.50-Remote-Code-Execution.html Exploit Third Party Advisory VDB Entry
http://www.openwall.com/lists/oss-security/2021/10/07/6 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/1 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/2 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/3 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/4 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/5 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/6 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/09/1 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/11/4 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/15/3 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/16/1 Mailing List Third Party Advisory
https://httpd.apache.org/security/vulnerabilities_24.html Release Notes Vendor Advisory
https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3%40%3Ccvs.httpd.apache.org%3E Mailing List Patch
https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837%40%3Cannounce.apache.org%3E Mailing List
https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb%40%3Cusers.httpd.apache.org%3E Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RMIIEFINL6FUIOPD2A3M5XC6DH45Y3CC/ Release Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/ Release Notes
https://security.gentoo.org/glsa/202208-20 Third Party Advisory
https://security.netapp.com/advisory/ntap-20211029-0009/ Third Party Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZ Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.html Patch Third Party Advisory
https://www.povilaika.com/apache-2-4-50-exploit/ Exploit Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

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ranhn/Goby-Poc

此次更新共包含1314个自定义gobypoc，是否含有后门和重复自行判断，如果无红队版，可直接poc管理处导入自定义poc即可，共计1314个。

Updated: 1 week, 6 days ago
0 stars 0 fork 0 watcher
Born at : Jan. 8, 2025, 6:20 a.m. This repo has been linked 40 different CVEs too.
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pwnosec/ApachSAL

Path Traversal automation vulnerability scanner tool.

path-traversal path-traversal-automation path-traversal-exploitation vulnerability-detection vulnerability-exploitation

Python

Updated: 3 weeks, 4 days ago
0 stars 0 fork 0 watcher
Born at : Dec. 27, 2024, 10:48 a.m. This repo has been linked 3 different CVEs too.
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fazilbaig1/oscp

oscp notes

Updated: 1 month ago
0 stars 0 fork 0 watcher
Born at : Dec. 9, 2024, 6:26 p.m. This repo has been linked 66 different CVEs too.
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misakitanabe/mastery_extension

None

Updated: 1 month, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : Dec. 5, 2024, 10:17 p.m. This repo has been linked 2 different CVEs too.
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krlabs/apache-vulnerabilities

Apache Web Server Vulnerabilities list

apache cve vulnerabilities

Updated: 1 month, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : Nov. 30, 2024, 7:36 p.m. This repo has been linked 47 different CVEs too.
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csbysj/Z5yUkptp

基于Docker-Compose的预构建漏洞环境设计源码 Docker-Compose 漏洞环境 Java Python Shell 该项目是一套基于Docker-Compose的预构建漏洞环境设计源码，涵盖了1684个文件，其中包括405个PNG图像文件、319个Markdown文档、218个YAML配置文件、68个Java源文件、67个Python脚本、62个Shell脚本、53个XML文件、34个PHP文件以及多个Dockerfile。该环境集成了Java, Python, Shell, PHP, HTML, JavaScript, CSS, Ruby等多种编程语言，旨在为安全研究提供易用的漏洞测试平台。

Updated: 1 month, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : Nov. 29, 2024, 4:05 a.m. This repo has been linked 127 different CVEs too.
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XiaomingX/awesome-poc-for-red-team

A curated collection of Proof of Concept (PoC) tools, scripts, and techniques designed for red team operations, penetration testing, and cybersecurity research. This repository focuses on providing practical resources for exploring vulnerabilities

attack cybersecurity exp hw penetration-testing poc red-team security-tools vulnerability-poc

Updated: 1 month, 2 weeks ago
1 stars 2 fork 2 watcher
Born at : Nov. 17, 2024, 11:53 a.m. This repo has been linked 414 different CVEs too.
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Faizan-Khanx/OSCP

This repository is designed to provide a comprehensive collection of study materials, notes, and resources for the Offensive Security Certified Professional (OSCP) exam. It covers all key topics from basic to advanced, helping aspiring penetration testers to prepare efficiently for the exam.

cybersecurity hacking oscp oscp-guide oscp-journey oscp-prep

Updated: 2 months, 3 weeks ago
2 stars 0 fork 0 watcher
Born at : Oct. 4, 2024, 4:43 p.m. This repo has been linked 75 different CVEs too.
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EnriqueSanchezdelVillar/NotesHck

None

Python C Shell PHP PowerShell ASP.NET

Updated: 3 months ago
0 stars 0 fork 0 watcher
Born at : Oct. 1, 2024, 2:21 p.m. This repo has been linked 66 different CVEs too.
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lucagioacchini/auto-pen-bench

This repo contains the codes of the penetration test benchmark for Generative Agents presented in the paper "AutoPenBench: Benchmarking Generative Agents for Penetration Testing". It contains also the instructions to install, develop and test new vulnerable containers to include in the benchmark.

benchmark generative-agents generative-ai penetration-testing

Python Shell Dockerfile C PHP Hack CSS HTML Ruby Groovy

Updated: 2 months, 2 weeks ago
9 stars 2 fork 2 watcher
Born at : Sept. 30, 2024, 3:13 p.m. This repo has been linked 11 different CVEs too.
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EsselKobby/Virtual_Infosec_Africa_LAB

This is a repository that contains the project reports and other related information in relation to the Ethical Hacking Training Bootcamp at Virtual Infosec Africa Limited Training Lab at KNUST,Ghana.

Python

Updated: 1 week, 6 days ago
0 stars 0 fork 0 watcher
Born at : Sept. 18, 2024, 12:56 a.m. This repo has been linked 11 different CVEs too.
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Davida-AduGyamfi/INPT

None

Updated: 4 months ago
0 stars 0 fork 0 watcher
Born at : Sept. 17, 2024, 7:33 p.m. This repo has been linked 6 different CVEs too.
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daffum3/internal-network-pentesting

None

Updated: 3 months, 4 weeks ago
0 stars 0 fork 0 watcher
Born at : Sept. 16, 2024, 2:56 a.m. This repo has been linked 2 different CVEs too.
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Samue290/INPT-REPORT

None

Updated: 4 months ago
0 stars 0 fork 0 watcher
Born at : Sept. 16, 2024, 12:42 a.m. This repo has been linked 5 different CVEs too.
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Dorsaa-Francis/inpt_report

None

Updated: 4 months ago
0 stars 0 fork 0 watcher
Born at : Sept. 14, 2024, 2:58 p.m. This repo has been linked 5 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-42013 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-42013 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://jvn.jp/en/jp/JVN51106450/index.html
    Added Reference http://packetstormsecurity.com/files/164501/Apache-HTTP-Server-2.4.50-Path-Traversal-Code-Execution.html
    Added Reference http://packetstormsecurity.com/files/164609/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html
    Added Reference http://packetstormsecurity.com/files/164629/Apache-2.4.49-2.4.50-Traversal-Remote-Code-Execution.html
    Added Reference http://packetstormsecurity.com/files/164941/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html
    Added Reference http://packetstormsecurity.com/files/165089/Apache-HTTP-Server-2.4.50-CVE-2021-42013-Exploitation.html
    Added Reference http://packetstormsecurity.com/files/167397/Apache-2.4.50-Remote-Code-Execution.html
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/07/6
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/08/1
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/08/2
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/08/3
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/08/4
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/08/5
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/08/6
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/09/1
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/11/4
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/15/3
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/16/1
    Added Reference https://httpd.apache.org/security/vulnerabilities_24.html
    Added Reference https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3%40%3Ccvs.httpd.apache.org%3E
    Added Reference https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837%40%3Cannounce.apache.org%3E
    Added Reference https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb%40%3Cusers.httpd.apache.org%3E
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RMIIEFINL6FUIOPD2A3M5XC6DH45Y3CC/
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/
    Added Reference https://security.gentoo.org/glsa/202208-20
    Added Reference https://security.netapp.com/advisory/ntap-20211029-0009/
    Added Reference https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZ
    Added Reference https://www.oracle.com/security-alerts/cpuapr2022.html
    Added Reference https://www.oracle.com/security-alerts/cpujan2022.html
    Added Reference https://www.povilaika.com/apache-2-4-50-exploit/
  • Modified Analysis by [email protected]

    Jul. 26, 2024

    Action Type Old Value New Value
    Changed Reference Type https://httpd.apache.org/security/vulnerabilities_24.html Vendor Advisory https://httpd.apache.org/security/vulnerabilities_24.html Release Notes, Vendor Advisory
    Changed Reference Type https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3%40%3Ccvs.httpd.apache.org%3E No Types Assigned https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3%40%3Ccvs.httpd.apache.org%3E Mailing List, Patch
    Changed Reference Type https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837%40%3Cannounce.apache.org%3E No Types Assigned https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837%40%3Cannounce.apache.org%3E Mailing List
    Changed Reference Type https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb%40%3Cusers.httpd.apache.org%3E No Types Assigned https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb%40%3Cusers.httpd.apache.org%3E Mailing List
    Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RMIIEFINL6FUIOPD2A3M5XC6DH45Y3CC/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RMIIEFINL6FUIOPD2A3M5XC6DH45Y3CC/ Release Notes
    Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/ Release Notes
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference Apache Software Foundation https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837%40%3Cannounce.apache.org%3E [No types assigned]
    Added Reference Apache Software Foundation https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb%40%3Cusers.httpd.apache.org%3E [No types assigned]
    Added Reference Apache Software Foundation https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3%40%3Ccvs.httpd.apache.org%3E [No types assigned]
    Added Reference Apache Software Foundation https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RMIIEFINL6FUIOPD2A3M5XC6DH45Y3CC/ [No types assigned]
    Added Reference Apache Software Foundation https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/ [No types assigned]
    Removed Reference Apache Software Foundation https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837@%3Cannounce.apache.org%3E
    Removed Reference Apache Software Foundation https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb@%3Cusers.httpd.apache.org%3E
    Removed Reference Apache Software Foundation https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3@%3Ccvs.httpd.apache.org%3E
    Removed Reference Apache Software Foundation https://lists.fedoraproject.org/archives/list/[email protected]/message/RMIIEFINL6FUIOPD2A3M5XC6DH45Y3CC/
    Removed Reference Apache Software Foundation https://lists.fedoraproject.org/archives/list/[email protected]/message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/
  • Reanalysis by [email protected]

    Aug. 31, 2023

    Action Type Old Value New Value
    Changed Reference Type http://packetstormsecurity.com/files/167397/Apache-2.4.50-Remote-Code-Execution.html Exploit, Third Party Advisory http://packetstormsecurity.com/files/167397/Apache-2.4.50-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
    Added CWE NIST NVD-CWE-Other
  • Modified Analysis by [email protected]

    Oct. 05, 2022

    Action Type Old Value New Value
    Changed Reference Type http://packetstormsecurity.com/files/167397/Apache-2.4.50-Remote-Code-Execution.html No Types Assigned http://packetstormsecurity.com/files/167397/Apache-2.4.50-Remote-Code-Execution.html Exploit, Third Party Advisory
    Changed Reference Type https://security.gentoo.org/glsa/202208-20 No Types Assigned https://security.gentoo.org/glsa/202208-20 Third Party Advisory
    Changed Reference Type https://www.oracle.com/security-alerts/cpuapr2022.html No Types Assigned https://www.oracle.com/security-alerts/cpuapr2022.html Patch, Third Party Advisory
    Changed Reference Type https://www.povilaika.com/apache-2-4-50-exploit/ No Types Assigned https://www.povilaika.com/apache-2-4-50-exploit/ Exploit, Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:* *cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:* *cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:* *cpe:2.3:a:oracle:secure_backup:*:*:*:*:*:*:*:* versions up to (excluding) 18.1.0.1.0 OR *cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:* *cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:* *cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:* *cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:*:*:*:*:*:*:*:* versions up to (excluding) 9.2.6.0 *cpe:2.3:a:oracle:secure_backup:*:*:*:*:*:*:*:* versions up to (excluding) 18.1.0.1.0
  • CVE Modified by [email protected]

    Aug. 15, 2022

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/202208-20 [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 09, 2022

    Action Type Old Value New Value
    Added Reference https://www.povilaika.com/apache-2-4-50-exploit/ [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 06, 2022

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/167397/Apache-2.4.50-Remote-Code-Execution.html [No Types Assigned]
  • CVE Modified by [email protected]

    Apr. 20, 2022

    Action Type Old Value New Value
    Added Reference https://www.oracle.com/security-alerts/cpuapr2022.html [No Types Assigned]
  • Modified Analysis by [email protected]

    Mar. 25, 2022

    Action Type Old Value New Value
    Changed Reference Type https://www.oracle.com/security-alerts/cpujan2022.html No Types Assigned https://www.oracle.com/security-alerts/cpujan2022.html Patch, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:* *cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:* *cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:* *cpe:2.3:a:oracle:secure_backup:*:*:*:*:*:*:*:* versions up to (excluding) 18.1.0.1.0
    Added CPE Configuration OR *cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Feb. 07, 2022

    Action Type Old Value New Value
    Added Reference https://www.oracle.com/security-alerts/cpujan2022.html [No Types Assigned]
  • Modified Analysis by [email protected]

    Nov. 30, 2021

    Action Type Old Value New Value
    Changed Reference Type http://packetstormsecurity.com/files/164941/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html No Types Assigned http://packetstormsecurity.com/files/164941/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
    Changed Reference Type http://packetstormsecurity.com/files/165089/Apache-HTTP-Server-2.4.50-CVE-2021-42013-Exploitation.html No Types Assigned http://packetstormsecurity.com/files/165089/Apache-HTTP-Server-2.4.50-CVE-2021-42013-Exploitation.html Third Party Advisory, VDB Entry
  • CVE Modified by [email protected]

    Nov. 29, 2021

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/165089/Apache-HTTP-Server-2.4.50-CVE-2021-42013-Exploitation.html [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 11, 2021

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/164941/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html [No Types Assigned]
  • Modified Analysis by [email protected]

    Nov. 04, 2021

    Action Type Old Value New Value
    Changed Reference Type http://packetstormsecurity.com/files/164501/Apache-HTTP-Server-2.4.50-Path-Traversal-Code-Execution.html Exploit, Third Party Advisory http://packetstormsecurity.com/files/164501/Apache-HTTP-Server-2.4.50-Path-Traversal-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
    Changed Reference Type http://packetstormsecurity.com/files/164609/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html No Types Assigned http://packetstormsecurity.com/files/164609/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
    Changed Reference Type http://packetstormsecurity.com/files/164629/Apache-2.4.49-2.4.50-Traversal-Remote-Code-Execution.html No Types Assigned http://packetstormsecurity.com/files/164629/Apache-2.4.49-2.4.50-Traversal-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/10/15/3 No Types Assigned http://www.openwall.com/lists/oss-security/2021/10/15/3 Mailing List, Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/10/16/1 No Types Assigned http://www.openwall.com/lists/oss-security/2021/10/16/1 Mailing List, Third Party Advisory
    Changed Reference Type https://security.netapp.com/advisory/ntap-20211029-0009/ No Types Assigned https://security.netapp.com/advisory/ntap-20211029-0009/ Third Party Advisory
  • CVE Modified by [email protected]

    Oct. 29, 2021

    Action Type Old Value New Value
    Added Reference https://security.netapp.com/advisory/ntap-20211029-0009/ [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 25, 2021

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/164609/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html [No Types Assigned]
    Added Reference http://packetstormsecurity.com/files/164629/Apache-2.4.49-2.4.50-Traversal-Remote-Code-Execution.html [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 16, 2021

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/16/1 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 15, 2021

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/15/3 [No Types Assigned]
  • Initial Analysis by [email protected]

    Oct. 15, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type http://jvn.jp/en/jp/JVN51106450/index.html No Types Assigned http://jvn.jp/en/jp/JVN51106450/index.html Third Party Advisory
    Changed Reference Type http://packetstormsecurity.com/files/164501/Apache-HTTP-Server-2.4.50-Path-Traversal-Code-Execution.html No Types Assigned http://packetstormsecurity.com/files/164501/Apache-HTTP-Server-2.4.50-Path-Traversal-Code-Execution.html Exploit, Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/10/07/6 No Types Assigned http://www.openwall.com/lists/oss-security/2021/10/07/6 Mailing List, Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/10/08/1 No Types Assigned http://www.openwall.com/lists/oss-security/2021/10/08/1 Mailing List, Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/10/08/2 No Types Assigned http://www.openwall.com/lists/oss-security/2021/10/08/2 Mailing List, Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/10/08/3 No Types Assigned http://www.openwall.com/lists/oss-security/2021/10/08/3 Mailing List, Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/10/08/4 No Types Assigned http://www.openwall.com/lists/oss-security/2021/10/08/4 Mailing List, Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/10/08/5 No Types Assigned http://www.openwall.com/lists/oss-security/2021/10/08/5 Mailing List, Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/10/08/6 No Types Assigned http://www.openwall.com/lists/oss-security/2021/10/08/6 Mailing List, Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/10/09/1 No Types Assigned http://www.openwall.com/lists/oss-security/2021/10/09/1 Mailing List, Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/10/11/4 No Types Assigned http://www.openwall.com/lists/oss-security/2021/10/11/4 Mailing List, Third Party Advisory
    Changed Reference Type https://httpd.apache.org/security/vulnerabilities_24.html No Types Assigned https://httpd.apache.org/security/vulnerabilities_24.html Vendor Advisory
    Changed Reference Type https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3@%3Ccvs.httpd.apache.org%3E No Types Assigned https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3@%3Ccvs.httpd.apache.org%3E Mailing List, Vendor Advisory
    Changed Reference Type https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837@%3Cannounce.apache.org%3E No Types Assigned https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837@%3Cannounce.apache.org%3E Mailing List
    Changed Reference Type https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb@%3Cusers.httpd.apache.org%3E No Types Assigned https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb@%3Cusers.httpd.apache.org%3E Mailing List
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/RMIIEFINL6FUIOPD2A3M5XC6DH45Y3CC/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/RMIIEFINL6FUIOPD2A3M5XC6DH45Y3CC/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/ Mailing List
    Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZ No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZ Third Party Advisory
    Added CWE NIST CWE-22
    Added CPE Configuration OR *cpe:2.3:a:apache:http_server:2.4.49:*:*:*:*:*:*:* *cpe:2.3:a:apache:http_server:2.4.50:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Oct. 15, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/ [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 13, 2021

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/164501/Apache-HTTP-Server-2.4.50-Path-Traversal-Code-Execution.html [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 13, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/RMIIEFINL6FUIOPD2A3M5XC6DH45Y3CC/ [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 11, 2021

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/11/4 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 09, 2021

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/08/6 [No Types Assigned]
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/08/5 [No Types Assigned]
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/09/1 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 09, 2021

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/08/4 [No Types Assigned]
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/08/3 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 08, 2021

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/08/2 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 08, 2021

    Action Type Old Value New Value
    Added Reference https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3@%3Ccvs.httpd.apache.org%3E [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 08, 2021

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/08/1 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 08, 2021

    Action Type Old Value New Value
    Added Reference http://jvn.jp/en/jp/JVN51106450/index.html [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 07, 2021

    Action Type Old Value New Value
    Added Reference https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZ [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 07, 2021

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2021/10/07/6 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 07, 2021

    Action Type Old Value New Value
    Added Reference https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837@%3Cannounce.apache.org%3E [No Types Assigned]
    Added Reference https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb@%3Cusers.httpd.apache.org%3E [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-42013 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-42013 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

96.88 }} -0.14%

score

0.99818

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: