D-Link DAP-2020 WEB_CmdFileList Command Injection Remote Code Execution Vulnerability
Vulnerability Details
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2020 Wi-Fi access points. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the processing of CGI scripts. The issue results from the lack of proper validation of 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 root.
Additional Details
D-Link has issued an update to correct this vulnerability. More details can be found at:
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10201
Disclosure Timeline
- 2020-09-08 - Vulnerability reported to vendor
- 2021-02-24 - Coordinated public release of advisory
Credit
Anthony Schneiter & Jannis Kirschner from Team SUID (in alphabetical order)
