CVE-2019-6744 Auth bypass in Knox

Medium 4.3 Published Updated

Local attackers with physical access can bypass Secure Folder authentication to disclose sensitive container contents.

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-2019-6744?

CVE-2019-6744 is a medium-severity authentication bypass vulnerability in Samsung Knox, published on 10 Feb 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

This vulnerability allows local attackers to disclose sensitive information on affected installations of Samsung Knox 1.2.02.39 on Samsung Galaxy S9 build G9600ZHS3ARL1 Secure Folder. An attacker must first obtain physical access to the device in order to exploit this vulnerability. The specific flaws exists within the the handling of the lock screen for Secure Folder. The issue results from the lack of proper validation that a user has correctly authenticated. An attacker can leverage this vulnerability to disclose the contents of the secure container. Was ZDI-CAN-7381.

Weakness: CWE-287, CWE-284

Which versions are affected by CVE-2019-6744?

It affects 1 product.

Products include Samsung Knox.

How do I fix CVE-2019-6744?

No fix has been published for CVE-2019-6744 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-2019-6744 being exploited?

There is no known exploitation of CVE-2019-6744 in the wild and no public exploit code.

Sources

Also known as GHSA-vr56-g7hp-gjv6.

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