CVE-2021-3688 : Security Advisory and Response
Learn about CVE-2021-3688, a vulnerability in Red Hat JBoss Core Services HTTP Server allowing unauthorized access. Find out about the impact, affected versions, and mitigation steps.
A flaw was found in Red Hat JBoss Core Services HTTP Server where it does not properly normalize the path component of a request URL containing dot-dot-semicolon(s). This vulnerability could allow an attacker to access unauthorized information or conduct further attacks, posing a threat to data confidentiality and integrity.
Understanding CVE-2021-3688
This section will provide insights into the nature and impact of CVE-2021-3688.
What is CVE-2021-3688?
CVE-2021-3688 is a vulnerability in Red Hat JBoss Core Services HTTP Server that arises from improper normalization of request URLs with specific characters, potentially leading to unauthorized data access.
The Impact of CVE-2021-3688
The highest threat from this vulnerability is to data confidentiality and integrity, making it crucial for organizations to address and mitigate the risk promptly.
Technical Details of CVE-2021-3688
This section will delve into the technical aspects of CVE-2021-3688.
Vulnerability Description
The vulnerability allows attackers to exploit the HTTP Server's path normalization issues to gain unauthorized access or launch further attacks.
Affected Systems and Versions
Red Hat JBoss Core Services HTTP Server versions are affected, with the vulnerability being fixed in version jbcs-httpd-2.4.37.SP10 GA.
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating the path component of a request URL with dot-dot-semicolon(s) to bypass security controls.
Mitigation and Prevention
This section will outline steps to mitigate and prevent exploitation of CVE-2021-3688.
Immediate Steps to Take
Organizations should update to the fixed version, jbcs-httpd-2.4.37.SP10 GA, to remediate the vulnerability and enhance security posture.
Long-Term Security Practices
Implementing secure coding practices, conducting regular security audits, and educating users on safe browsing habits can help prevent similar vulnerabilities.
Patching and Updates
Regularly monitoring vendor security advisories and promptly applying patches and updates are essential to safeguard against known vulnerabilities.