CVE-2021-42784 OS Command Injection in debug_fcgi in D-Link DWR-932C E1 Firmware 1.0.0.4

Critical 9.8 Published Updated

Remote attackers can execute arbitrary OS commands on D-Link DWR-932C E1 routers via crafted HTTP requests to the debug_fcgi component.

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-2021-42784?

CVE-2021-42784 is a critical command injection vulnerability in D-Link DWR-932C E1, published on 23 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

OS Command Injection vulnerability in debug_fcgi of D-Link DWR-932C E1 firmware allows a remote attacker to perform command injection via a crafted HTTP request.

Weakness: CWE-78

Which versions are affected by CVE-2021-42784?

It affects 1 product.

Products include Dlink Dwr-932c E1 Firmware.

How do I fix CVE-2021-42784?

No fix has been published for CVE-2021-42784 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-2021-42784 being exploited?

There is no known exploitation of CVE-2021-42784 in the wild and no public exploit code.

Sources

Also known as GHSA-23jf-wqc3-q3jr.

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