CVE-2019-16241 Auth bypass in n/a

Medium 6.8 Published Updated

Attackers can bypass PIN authentication on TCL Alcatel Flip 2 devices by creating a specific file in the local temporary directory.

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

What is CVE-2019-16241?

CVE-2019-16241 is a medium-severity authentication bypass vulnerability in n/a, published on 26 Nov 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

On TCL Alcatel Cingular Flip 2 B9HUAH1 devices, PIN authentication can be bypassed by creating a special file within the /data/local/tmp/ directory. The System application that implements the lock screen checks for the existence of a specific file and disables PIN authentication if it exists. This file would typically be created via Android Debug Bridge (adb) over USB.

Weakness: CWE-668

Which versions are affected by CVE-2019-16241?

It affects 1 product.

Products include Alcatelmobile Cingular Flip 2 Firmware.

How do I fix CVE-2019-16241?

No fix has been published for CVE-2019-16241 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-2019-16241 being exploited?

There is no known exploitation of CVE-2019-16241 in the wild and no public exploit code.

Sources

Also known as GHSA-qg5g-43r3-8gpr.

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