CVE-2018-0639 Command injection in HC100RC

High 7.2 Published 9 Jan 2019 Updated 5 Aug 2024

An administrator can execute arbitrary OS commands on NEC Aterm HC100RC routers via crafted parameters in the firmware tool interface.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2018-0639?

CVE-2018-0639 is a high-severity command injection vulnerability in NEC Corporation HC100RC, published on 9 Jan 2019. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Aterm HC100RC Ver1.0.1 and earlier allows attacker with administrator rights to execute arbitrary OS commands via tools_firmware.cgi date parameter, time parameter, and offset parameter.

Weakness: CWE-78

Which versions are affected by CVE-2018-0639?

It affects 1 product.

Products include Nec Aterm Hc100rc Firmware.

How do I fix CVE-2018-0639?

No fix has been published for CVE-2018-0639 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-2018-0639 being exploited?

There is no known exploitation of CVE-2018-0639 in the wild and no public exploit code.

Sources

Also known as GHSA-72f4-4xcc-jqh3.