CVE-2016-9494 Denial of service in DW7000

Medium 6.5 Published 13 Jul 2018 Updated 6 Aug 2024

Attackers can cause denial of service on Hughes satellite modems by sending malformed GET requests to the advanced status web page.

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-2016-9494?

CVE-2016-9494 is a medium-severity denial of service vulnerability in Hughes Satellite Modem DW7000, published on 13 Jul 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Hughes high-performance broadband satellite modems, models HN7740S DW7000 HN7000S/SM, are potentially vulnerable to improper input validation. The device's advanced status web page that is linked to from the basic status web page does not appear to properly parse malformed GET requests. This may lead to a denial of service.

Weakness: CWE-20

Which versions are affected by CVE-2016-9494?

It affects 4 products.

Products include Hughes Dw7000 Firmware, Hughes Hn7000s Firmware, Hughes Hn7000sm Firmware, Hughes Hn7740s Firmware.

How do I fix CVE-2016-9494?

No fix has been published for CVE-2016-9494 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2016-9494 being exploited?

There is no known exploitation of CVE-2016-9494 in the wild and no public exploit code.

Sources

Also known as GHSA-2qhr-9g3c-c9f6.