CVE-2019-3421 Command injection in ZX297520V3

High 8.0 Published Updated

Unauthorized users can exploit a command injection flaw in ZTE ZX297520V3 devices to execute arbitrary commands and control the terminal system.

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-2019-3421?

CVE-2019-3421 is a high-severity command injection vulnerability in ZTE Corporation ZX297520V3, published on 31 Oct 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The 7520V3V1.0.0B09P27 version, and all earlier versions of ZTE product ZX297520V3 are impacted by a Command Injection vulnerability. Unauthorized users can exploit this vulnerability to control the user terminal system.

Weakness: CWE-77

Which versions are affected by CVE-2019-3421?

It affects 1 product.

Products include Ztw Zx297520v3 Firmware.

How do I fix CVE-2019-3421?

No fix has been published for CVE-2019-3421 yet. Limit exposure of the affected software until one is available.

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

Is CVE-2019-3421 being exploited?

There is no known exploitation of CVE-2019-3421 in the wild and no public exploit code.

Sources

Also known as GHSA-q6g5-8v53-vchj.

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