CVE-2021-3784 Garuda Linux Improper Authorization

Medium 5.3 Published Updated

An attacker can impersonate newly created users in Garuda Linux by exploiting a race condition where accounts lack passwords briefly during creation.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-3784?

CVE-2021-3784 is a medium-severity authentication bypass vulnerability in Garuda Linux, published on 4 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Garuda Linux performs an insecure user creation and authentication that allows any user to impersonate the created account. By creating users from the 'Garuda settings manager', an insecure procedure is performed that keeps the created user without an assigned password during some seconds. This could allow a potential attacker to exploit this vulnerability in order to authenticate without knowing the password.

Weakness: CWE-287

Which versions are affected by CVE-2021-3784?

It affects 1 product.

Products include Garudalinux Garuda Linux.

How do I fix CVE-2021-3784?

No fix has been published for CVE-2021-3784 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-2021-3784 being exploited?

There is no known exploitation of CVE-2021-3784 in the wild and no public exploit code.

Sources

Also known as GHSA-jjmh-cxjf-3v7g.

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