CVE-2020-5240 : What You Need to Know

In wagtail-2fa before 1.4.1, a vulnerability allows any user with access to the CMS to view and delete other users' 2FA devices, potentially compromising accounts. The issue has been patched in version 1.4.1.

Understanding CVE-2020-5240

This CVE involves a 2FA bypass through deleting devices in wagtail-2fa.

What is CVE-2020-5240?

CVE-2020-5240 is a security vulnerability in wagtail-2fa that enables unauthorized users to view and delete other users' 2FA devices without requiring special permissions.

The Impact of CVE-2020-5240

The vulnerability poses a high severity risk as it allows attackers to disable target users' 2FA devices, potentially leading to account compromise.

Technical Details of CVE-2020-5240

This section provides detailed technical information about the CVE.

Vulnerability Description

The flaw in wagtail-2fa before 1.4.1 allows any CMS user to access and delete other users' 2FA devices, compromising account security.

Affected Systems and Versions

Product: wagtail-2fa
Vendor: Lab Digital
Versions Affected: < 1.4.1

Exploitation Mechanism

Attackers can exploit this vulnerability by accessing the correct path in the CMS to view and delete other users' 2FA devices.

Mitigation and Prevention

Protecting systems from CVE-2020-5240 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update wagtail-2fa to version 1.4.1 or newer to patch the vulnerability.
Monitor user activities related to 2FA devices for any suspicious behavior.

Long-Term Security Practices

Implement proper access controls to restrict unauthorized users from accessing sensitive functionalities.
Educate users on the importance of securing their accounts and 2FA devices.

Patching and Updates

Regularly apply security patches and updates to ensure the system is protected against known vulnerabilities.