Discover how CVE-2021-21329 impacts RATCF users with multi-factor authentication, learn about the vulnerability, its technical details, affected systems, and mitigation steps.
RATCF is an open-source framework for hosting Cyber-Security Capture the Flag events. In affected versions of RATCF, users with multi-factor authentication enabled can log in without a valid token. This vulnerability is fixed in commit
cebb67bd
.
Understanding CVE-2021-21329
This CVE identifies the improper validation of multi-factor authentication tokens during user login in the RATCF framework.
What is CVE-2021-21329?
CVE-2021-21329 refers to a security flaw in RATCF that allows users to bypass multi-factor authentication requirements.
The Impact of CVE-2021-21329
The vulnerability poses a high risk as it allows unauthorized users to access the system without providing a valid authentication token, compromising the confidentiality and integrity of sensitive data.
Technical Details of CVE-2021-21329
The exploit has a CVSS v3.1 base score of 8.7 (High), with a high impact on confidentiality and integrity. It requires no user interaction with a high attack complexity over the network.
Vulnerability Description
The vulnerability arises from improper validation of multi-factor authentication tokens during user login in RATCF.
Affected Systems and Versions
The affected product is the
core
component of RATCF. Versions between commit c57a4d186bfc586ad3edfe4dcba9f11efbf22f09
and cebb67bd16a8296121201805332365ffccb29638
are vulnerable.
Exploitation Mechanism
Attackers can exploit this vulnerability by leveraging the improper authentication mechanism to gain unauthorized access to the system.
Mitigation and Prevention
To secure your system against CVE-2021-21329, immediate action is required to prevent unauthorized access and protect sensitive data.
Immediate Steps to Take
Disable multi-factor authentication or implement a secure authentication method until the patch is applied.
Long-Term Security Practices
Regularly update RATCF to the latest stable version and educate users on secure authentication practices.
Patching and Updates
Apply the fix provided in commit
cebb67bd16a8296121201805332365ffccb29638
to address the vulnerability.