CVE-2020-15631 Command injection in DAP-1860

High 8.0 Published 23 Jul 2020 Updated 4 Aug 2024

Network-adjacent attackers can execute arbitrary code on D-Link WiFi extenders by exploiting a command injection flaw in the HNAP service.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-15631?

CVE-2020-15631 is a high-severity command injection vulnerability in D-Link DAP-1860, published on 23 Jul 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1860 1.04B03_HOTFIX WiFi extenders. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the HNAP service, which listens on TCP port 80 by default. When parsing the SOAPAction header, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-10084.

Weakness: CWE-78

Which versions are affected by CVE-2020-15631?

It affects 1 product.

Products include Dlink Dap-1860 Firmware.

How do I fix CVE-2020-15631?

No fix has been published for CVE-2020-15631 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-2020-15631 being exploited?

There is no known exploitation of CVE-2020-15631 in the wild and no public exploit code.

Sources

Also known as GHSA-qpfx-fjm2-5crf.