CVE-2021-21329 Multi Factor Authentication Token Improperly Validated On User Login
Attackers can bypass multi-factor authentication to log into RATCF accounts if MFA is enabled, compromising user accounts.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-21329?
CVE-2021-21329 is a high-severity authentication bypass vulnerability in ractf core, published on 8 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-287
Which versions are affected by CVE-2021-21329?
It affects 1 product.
Products include Ratcf Ratcf.
How do I fix CVE-2021-21329?
No fix has been published for CVE-2021-21329 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2021-21329 being exploited?
There is no known exploitation of CVE-2021-21329 in the wild and no public exploit code.
Sources
Also known as GHSA-fw57-f7mq-9q85.