CVE-2021-32631 Explained : Impact and Mitigation
Learn about CVE-2021-32631 impacting Common package versions before commit 3b96cb0293d3443b870351945f41d7d55cb34b53. Understand the risk, impacts, and mitigation steps.
A vulnerability in Common package versions before commit number 3b96cb0293d3443b870351945f41d7d55cb34b53 allows attackers to forge valid JSON Web Tokens, potentially leading to authentication bypasses. Immediate action is required to address this issue.
Understanding CVE-2021-32631
This CVE pertains to a security issue in the Common package of Nimble Platform, affecting versions prior to commit 3b96cb0293d3443b870351945f41d7d55cb34b53.
What is CVE-2021-32631?
Common package modules used by NIMBLE services did not properly verify JSON Web Token signatures, enabling malicious actors to create authentic JWTs and potentially bypass authentication mechanisms.
The Impact of CVE-2021-32631
The vulnerability poses a medium-severity risk with a CVSS base score of 6.5. Exploitation could result in high integrity impact and authentication bypasses.
Technical Details of CVE-2021-32631
This section provides more insights into the vulnerability's description, affected systems, and the method of exploitation.
Vulnerability Description
The flaw in Common package versions allows unauthorized forging of JSON Web Tokens, opening doors to potential authentication bypass attacks.
Affected Systems and Versions
Versions of the Common package prior to commit 3b96cb0293d3443b870351945f41d7d55cb34b53 are impacted by this vulnerability.
Exploitation Mechanism
By exploiting the lack of proper JWT signature verification, threat actors can craft valid JWTs and potentially bypass authentication controls.
Mitigation and Prevention
To secure systems against CVE-2021-32631, immediate actions and long-term security practices are crucial.
Immediate Steps to Take
Implement the provided patch by updating to commit number 3b96cb0293d3443b870351945f41d7d55cb34b53. As a workaround, utilize the parseClaimsJws method to ensure proper JWT signature verification.
Long-Term Security Practices
Regularly monitor for security advisories, perform code reviews, and enforce secure coding practices to mitigate similar vulnerabilities.
Patching and Updates
Stay informed about security updates for the Common package and promptly apply patches to keep systems secure.