CVE-2021-21329

Multi Factor Authentication Token Improperly Validated On User Login

CRITICAL
9.8
CVSS Score
Published: March 8, 2021 at 05:15 PM UTC
Updated: June 17, 2026 at 03:35 AM UTC
2 products affected across 2 vendorsRatcfCore

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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%

Description

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 are able to log in without a valid token. This is fixed in commit cebb67b.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2021-02-26
Affected range stops below 2021-02-26, so it looks safe — our inference, not a vendor statement

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-287

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