CVE-2020-27862 Command injection in Multiple Routers
Network-adjacent attackers can execute arbitrary code on D-Link routers via the dhttpd service without authentication.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-27862?
CVE-2020-27862 is a high-severity command injection vulnerability in D-Link Multiple Routers, published on 11 Feb 2021. 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 DVA-2800 and DSL-2888A routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the dhttpd service, which listens on TCP port 8008 by default. When parsing the path parameter, 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 web server. Was ZDI-CAN-10911.
Weakness: CWE-77
Which versions are affected by CVE-2020-27862?
It affects 2 products.
Products include Dlink Dsl-2888a Firmware, Dlink Dva-2800 Firmware.
How do I fix CVE-2020-27862?
No fix has been published for CVE-2020-27862 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-2020-27862 being exploited?
There is no known exploitation of CVE-2020-27862 in the wild and no public exploit code.
Other vulnerabilities in D-Link Multiple Routers
Sources
Also known as GHSA-3fw2-qjm5-wjrf.