CVE-2021-3717 : Vulnerability Insights and Analysis
Learn about the CVE-2021-3717 vulnerability in Wildfly, impacting versions prior to 17.0. Understand the impact, technical details, and mitigation steps.
A detailed article about the CVE-2021-3717 vulnerability in Wildfly.
Understanding CVE-2021-3717
This section provides insight into the vulnerability found in Wildfly.
What is CVE-2021-3717?
A flaw in Wildfly allows incorrect JBOSS_LOCAL_USER access when using the elytron configuration, potentially compromising confidentiality, integrity, and availability. The vulnerability impacts wildfly-core versions prior to 17.0.
The Impact of CVE-2021-3717
The vulnerability poses a significant risk to affected systems by granting unauthorized JBOSS_LOCAL_USER access to all users on the machine, exposing sensitive data and compromising system availability.
Technical Details of CVE-2021-3717
This section delves into the technical aspects of the CVE-2021-3717 vulnerability.
Vulnerability Description
The flaw in Wildfly stems from an incorrect JBOSS_LOCAL_USER challenge location, allowing unauthorized access beyond intended privileges.
Affected Systems and Versions
Wildfly-core versions prior to 17.0 are affected by this vulnerability, potentially impacting a wide range of systems using the vulnerable software.
Exploitation Mechanism
Attackers can exploit this vulnerability to gain unauthorized access to JBOSS_LOCAL_USER privileges, compromising the security and integrity of the system.
Mitigation and Prevention
This section outlines steps to mitigate and prevent exploitation of CVE-2021-3717.
Immediate Steps to Take
It is crucial to update Wildfly to version 17.0 or newer to patch the vulnerability and prevent unauthorized access. Additionally, review and restrict user permissions to minimize the risk of exploitation.
Long-Term Security Practices
Implementing strict access controls, regular security audits, and employee training can enhance overall system security and reduce the likelihood of similar vulnerabilities.
Patching and Updates
Regularly monitor for security updates from Wildfly and apply patches promptly to address any newly discovered vulnerabilities and ensure system security.