CVE-2021-27113 Command injection in n/a

Critical 9.8 Published 14 Apr 2021 Updated 3 Aug 2024

Attackers can execute arbitrary commands on D-Link DIR-816 routers via shell metacharacters in HTTP request parameters.

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-2021-27113?

CVE-2021-27113 is a critical command injection vulnerability in Dlink Dir-816 Firmware, published on 14 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in D-Link DIR-816 A2 1.10 B05 devices. An HTTP request parameter is used in command string construction within the handler function of the /goform/addRouting route. This could lead to Command Injection via Shell Metacharacters.

Weakness: CWE-78

Which versions are affected by CVE-2021-27113?

It affects 1 product.

Products include Dlink Dir-816 Firmware.

How do I fix CVE-2021-27113?

No fix has been published for CVE-2021-27113 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-2021-27113 being exploited?

There is no known exploitation of CVE-2021-27113 in the wild and no public exploit code.

All Dlink Dir-816 Firmware vulnerabilities

Sources

Also known as GHSA-26w9-85c6-ccr8.