CVE-2019-19356 Netis WF2419 Devices Remote Code Execution

Exploited in the wild High 7.5 Published Updated

Authenticated attackers can execute arbitrary system commands as root via the router's tracert diagnostic tool due to insufficient input sanitization.

Exploited in the wild
Since 3 Nov 2021
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2019-19356?

CVE-2019-19356 is a high-severity command injection vulnerability in n/a, published on 7 Feb 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Netis WF2419 is vulnerable to authenticated Remote Code Execution (RCE) as root through the router Web management page. The vulnerability has been found in firmware version V1.2.31805 and V2.2.36123. After one is connected to this page, it is possible to execute system commands as root through the tracert diagnostic tool because of lack of user input sanitizing.

Weakness: CWE-78

Which versions are affected by CVE-2019-19356?

It affects 1 product.

Products include Netis-Systems Wf2419 Firmware.

How do I fix CVE-2019-19356?

No fix has been published for CVE-2019-19356 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 3 May 2022.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2019-19356 being exploited?

Yes. Attackers have exploited CVE-2019-19356 in the wild since at least 3 Nov 2021.

Public exploit code: 2 proofs of concept on GitHub.

Sources

Also known as GHSA-ch88-rxpc-5c5r.

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