2FA Bypass Vulnerability Affects All Versions of Caddy Security

CVE-2024-21500

What is CVE-2024-21500?

All versions of the package github.com/greenpau/caddy-security are vulnerable to Improper Restriction of Excessive Authentication Attempts via the two-factor authentication (2FA). Although the application blocks the user after several failed attempts to provide 2FA codes, attackers can bypass this blocking mechanism by automating the application’s full multistep 2FA process.

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References