CVE-2021-42013 Report - Details, Severity, & Advisories
Twingate Team
•
Jul 12, 2024
What is CVE-2021-42013?
CVE-2021-42013 is a critical vulnerability with a severity rating of 9.8, affecting Apache HTTP Server versions 2.4.49 and 2.4.50. This security flaw allows attackers to exploit a path traversal attack, mapping URLs to files outside of designated directories. Systems running the affected Apache HTTP Server versions are at risk, and if CGI scripts are enabled, the vulnerability could lead to remote code execution, potentially resulting in unauthorized access, data theft, or service disruption.
Who is impacted by this?
If you're using Apache HTTP Server versions 2.4.49 or 2.4.50, you may be affected by the CVE-2021-42013 vulnerability. This security issue allows attackers to access files outside of designated directories, potentially leading to unauthorized access or data theft. If your system also has CGI scripts enabled, the vulnerability could result in remote code execution, which could cause further harm to your system.
What to do if CVE-2021-42013 affected you
If you're affected by the CVE-2021-42013 vulnerability, it's crucial to take immediate action to protect your system. To mitigate the risk, follow these simple steps:
Update your Apache HTTP Server to version 2.4.51, which has fixed the vulnerability. You can find the update on the Apache HTTP Server website.
Ensure that files outside designated directories are protected by the default configuration "require all denied."
Regularly monitor security advisories and updates from Apache and other relevant sources to stay informed about potential threats.
Is this in CISA’s Known Exploited Vulnerabilities Catalog?
The CVE-2021-42013 vulnerability, also known as the Apache HTTP Server Path Traversal Vulnerability, is indeed listed in CISA's Known Exploited Vulnerabilities Catalog. It was added on November 3, 2021, with a due date of November 17, 2021. The required action for affected users is to apply updates according to the vendor's instructions.
Weakness Enumeration
The weakness enumeration for this vulnerability is categorized as CWE-22, which involves improper limitation of a pathname to a restricted directory, also known as path traversal.
Learn More
For a comprehensive understanding of this vulnerability, including its description, severity, technical details, and known affected software configurations, refer to the National Vulnerability Database page or the sources listed below.
Rapidly implement a modern Zero Trust network that is more secure and maintainable than VPNs.
CVE-2021-42013 Report - Details, Severity, & Advisories
Twingate Team
•
Jul 12, 2024
What is CVE-2021-42013?
CVE-2021-42013 is a critical vulnerability with a severity rating of 9.8, affecting Apache HTTP Server versions 2.4.49 and 2.4.50. This security flaw allows attackers to exploit a path traversal attack, mapping URLs to files outside of designated directories. Systems running the affected Apache HTTP Server versions are at risk, and if CGI scripts are enabled, the vulnerability could lead to remote code execution, potentially resulting in unauthorized access, data theft, or service disruption.
Who is impacted by this?
If you're using Apache HTTP Server versions 2.4.49 or 2.4.50, you may be affected by the CVE-2021-42013 vulnerability. This security issue allows attackers to access files outside of designated directories, potentially leading to unauthorized access or data theft. If your system also has CGI scripts enabled, the vulnerability could result in remote code execution, which could cause further harm to your system.
What to do if CVE-2021-42013 affected you
If you're affected by the CVE-2021-42013 vulnerability, it's crucial to take immediate action to protect your system. To mitigate the risk, follow these simple steps:
Update your Apache HTTP Server to version 2.4.51, which has fixed the vulnerability. You can find the update on the Apache HTTP Server website.
Ensure that files outside designated directories are protected by the default configuration "require all denied."
Regularly monitor security advisories and updates from Apache and other relevant sources to stay informed about potential threats.
Is this in CISA’s Known Exploited Vulnerabilities Catalog?
The CVE-2021-42013 vulnerability, also known as the Apache HTTP Server Path Traversal Vulnerability, is indeed listed in CISA's Known Exploited Vulnerabilities Catalog. It was added on November 3, 2021, with a due date of November 17, 2021. The required action for affected users is to apply updates according to the vendor's instructions.
Weakness Enumeration
The weakness enumeration for this vulnerability is categorized as CWE-22, which involves improper limitation of a pathname to a restricted directory, also known as path traversal.
Learn More
For a comprehensive understanding of this vulnerability, including its description, severity, technical details, and known affected software configurations, refer to the National Vulnerability Database page or the sources listed below.
Rapidly implement a modern Zero Trust network that is more secure and maintainable than VPNs.
CVE-2021-42013 Report - Details, Severity, & Advisories
Twingate Team
•
Jul 12, 2024
What is CVE-2021-42013?
CVE-2021-42013 is a critical vulnerability with a severity rating of 9.8, affecting Apache HTTP Server versions 2.4.49 and 2.4.50. This security flaw allows attackers to exploit a path traversal attack, mapping URLs to files outside of designated directories. Systems running the affected Apache HTTP Server versions are at risk, and if CGI scripts are enabled, the vulnerability could lead to remote code execution, potentially resulting in unauthorized access, data theft, or service disruption.
Who is impacted by this?
If you're using Apache HTTP Server versions 2.4.49 or 2.4.50, you may be affected by the CVE-2021-42013 vulnerability. This security issue allows attackers to access files outside of designated directories, potentially leading to unauthorized access or data theft. If your system also has CGI scripts enabled, the vulnerability could result in remote code execution, which could cause further harm to your system.
What to do if CVE-2021-42013 affected you
If you're affected by the CVE-2021-42013 vulnerability, it's crucial to take immediate action to protect your system. To mitigate the risk, follow these simple steps:
Update your Apache HTTP Server to version 2.4.51, which has fixed the vulnerability. You can find the update on the Apache HTTP Server website.
Ensure that files outside designated directories are protected by the default configuration "require all denied."
Regularly monitor security advisories and updates from Apache and other relevant sources to stay informed about potential threats.
Is this in CISA’s Known Exploited Vulnerabilities Catalog?
The CVE-2021-42013 vulnerability, also known as the Apache HTTP Server Path Traversal Vulnerability, is indeed listed in CISA's Known Exploited Vulnerabilities Catalog. It was added on November 3, 2021, with a due date of November 17, 2021. The required action for affected users is to apply updates according to the vendor's instructions.
Weakness Enumeration
The weakness enumeration for this vulnerability is categorized as CWE-22, which involves improper limitation of a pathname to a restricted directory, also known as path traversal.
Learn More
For a comprehensive understanding of this vulnerability, including its description, severity, technical details, and known affected software configurations, refer to the National Vulnerability Database page or the sources listed below.
Solutions
Solutions
The VPN replacement your workforce will love.
Solutions