CVE-2019-17509 Command injection in n/a

Critical 9.8 Published 11 Oct 2019 Updated 5 Aug 2024

Remote attackers with admin access can execute arbitrary OS commands as root on D-Link DIR-846 routers via HNAP1 requests.

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-2019-17509?

CVE-2019-17509 is a critical command injection vulnerability in n/a, published on 11 Oct 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

D-Link DIR-846 devices with firmware 100A35 allow remote attackers to execute arbitrary OS commands as root by leveraging admin access and sending a /HNAP1/ request for SetMasterWLanSettings with shell metacharacters to /squashfs-root/www/HNAP1/control/SetMasterWLanSettings.php.

Weakness: CWE-78

Which versions are affected by CVE-2019-17509?

It affects 1 product.

Products include Dlink Dir-846 Firmware.

How do I fix CVE-2019-17509?

No fix has been published for CVE-2019-17509 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-2019-17509 being exploited?

There is no known exploitation of CVE-2019-17509 in the wild and no public exploit code.

Sources

Also known as GHSA-9r83-rpg5-r269.