CVE-2021-23371 Explained : Impact and Mitigation
Learn about CVE-2021-23371 impacting chrono-node versions earlier than 2.2.4. Explore the high severity ReDoS vulnerability, its impact, and mitigation strategies.
A detailed overview of CVE-2021-23371, a vulnerability affecting chrono-node before version 2.2.4. Learn about the impact, technical details, and mitigation strategies.
Understanding CVE-2021-23371
This section will provide insights into the vulnerability identified as Regular Expression Denial of Service (ReDoS) in the package chrono-node.
What is CVE-2021-23371?
CVE-2021-23371 affects chrono-node versions prior to 2.2.4, particularly impacting date-like strings with numerous embedded spaces. The vulnerability is classified as Regular Expression Denial of Service (ReDoS).
The Impact of CVE-2021-23371
The vulnerability poses a high severity risk with a CVSS base score of 7.5 out of 10. It has a high availability impact, potentially leading to service disruption.
Technical Details of CVE-2021-23371
Delve into the technical aspects of this CVE, including vulnerability description, affected systems, and exploitation mechanism.
Vulnerability Description
The vulnerability in chrono-node allows attackers to exploit date-like strings containing multiple spaces, leading to denial of service through excessive resource consumption.
Affected Systems and Versions
This CVE impacts chrono-node versions earlier than 2.2.4, leaving systems running these versions vulnerable to ReDoS attacks.
Exploitation Mechanism
Attackers can leverage the vulnerability by manipulating date-like strings with extensive space characters, triggering the ReDoS condition and causing service interruptions.
Mitigation and Prevention
Discover effective measures to mitigate the risks associated with CVE-2021-23371 and prevent potential exploitation.
Immediate Steps to Take
Users are advised to update chrono-node to version 2.2.4 or later to eliminate the vulnerability and enhance system security.
Long-Term Security Practices
Implement regex pattern validation, input sanitization techniques, and regular software updates to bolster resilience against ReDoS attacks.
Patching and Updates
Stay informed about security patches and updates for chrono-node to address vulnerabilities promptly and ensure robust defense mechanisms.