On D-Link DAP-1530 (A1) before firmware version 1.06b01, DAP-1610 (A1) before firmware version 1.06b01, DWR-111 (A1) before firmware version 1.02v02, DWR-116 (A1) before firmware version 1.06b03, DWR-512 (B1) before firmware version 2.02b01, DWR-711 (A1) through firmware version 1.11, DWR-712 (B1) before firmware version 2.04b01, DWR-921 (A1) before firmware version 1.02b01, and DWR-921 (B1) before firmware version 2.03b01, there exists an EXCU_SHELL file in the web directory. By sending a GET request with specially crafted headers to the /EXCU_SHELL URI, an attacker could execute arbitrary shell commands in the root context on the affected device. Other devices might be affected as well.

References

• https://nvd.nist.gov/vuln/detail/CVE-2018-19300
• https://community.greenbone.net/t/cve-2018-19300-remote-command-execution-vulnerability-in-d-link-dwr-and-dap-routers/1772
• https://eu.dlink.com/de/de/support/support-news/2019/march/19/remote-command-execution-vulnerability-in-d-link-dwr-and-dap-routers
• https://www.greenbone.net/en/serious-vulnerability-discovered-in-d-link-routers/
• https://www.greenbone.net/schwerwiegende-sicherheitsluecke-in-d-link-routern-entdeckt/