CVE-2018-17787 Command injection in n/a

Critical 9.8 Published Updated

Attackers can execute arbitrary commands on D-Link DIR-823G routers by injecting shell metacharacters into POST data sent to the HNAP1 interface.

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-2018-17787?

CVE-2018-17787 is a critical command injection vulnerability in n/a, published on 2 Oct 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

On D-Link DIR-823G devices, the GoAhead configuration allows /HNAP1 Command Injection via shell metacharacters in the POST data, because this data is sent directly to the "system" library function.

Weakness: CWE-78

Which versions are affected by CVE-2018-17787?

It affects 1 product.

Products include D-Link Dir-823g Firmware.

How do I fix CVE-2018-17787?

No fix has been published for CVE-2018-17787 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-2018-17787 being exploited?

There is no known exploitation of CVE-2018-17787 in the wild and no public exploit code.

Sources

Also known as GHSA-jq8r-c5mq-7jcx.

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