CVE-2021-44880 Command injection in n/a

Critical 9.8 Published 4 Feb 2022 Updated 4 Aug 2024

Attackers can execute arbitrary commands on D-Link routers via crafted HNAP1 POST requests, requiring firmware updates to mitigate.

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-2021-44880?

CVE-2021-44880 is a critical command injection vulnerability in n/a, published on 4 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

D-Link devices DIR_878 DIR_878_FW1.30B08_Hotfix_02 and DIR_882 DIR_882_FW1.30B06_Hotfix_02 were discovered to contain a command injection vulnerability in the system function. This vulnerability allows attackers to execute arbitrary commands via a crafted HNAP1 POST request.

Weakness: CWE-77

Which versions are affected by CVE-2021-44880?

It affects 2 products.

Products include Dlink Dir-878 Firmware, Dlink Dir-882 Firmware.

How do I fix CVE-2021-44880?

No fix has been published for CVE-2021-44880 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-2021-44880 being exploited?

There is no known exploitation of CVE-2021-44880 in the wild and no public exploit code.

Sources

Also known as GHSA-hpwm-36h9-w859.