CVE-2019-20470 Auth bypass in n/a

High 7.5 Published Updated

Attackers can initiate unauthorized outbound calls from TK-Star GPS watches by exploiting default SMS command passwords, bypassing authentication controls.

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-2019-20470?

CVE-2019-20470 is a high-severity authentication bypass vulnerability in n/a, published on 1 Feb 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered on TK-Star Q90 Junior GPS horloge 3.1042.9.8656 devices. It performs actions based on certain SMS commands. This can be used to set up a voice communication channel from the watch to any telephone number, initiated by sending a specific SMS and using the default password, e.g., pw,<password>,call,<mobile_number> triggers an outbound call from the watch. The password is sometimes available because of CVE-2019-20471.

Weakness: CWE-1188, CWE-284

Which versions are affected by CVE-2019-20470?

It affects 1 product.

Products include Tk-Star Q90 Junior Gps Horloge Firmware.

How do I fix CVE-2019-20470?

No fix has been published for CVE-2019-20470 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-2019-20470 being exploited?

There is no known exploitation of CVE-2019-20470 in the wild and no public exploit code.

Sources

Also known as GHSA-mc4h-8cxf-938r.

Is CVE-2019-20470 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free