A lack of input validation and access controls in Lua CGIs on D-Link DSR VPN routers may result in arbitrary input being passed to system command APIs, resulting in arbitrary command execution with root privileges. This affects DSR-150, DSR-250, DSR-500, and DSR-1000AC with firmware 3.14 and 3.17.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25757
Reference (s):
- https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10195
- https://www.digitaldefense.com/news/zero-day-vuln-d-link-vpn-routers/
- https://www.dlink.com/en/security-bulletin