Advisory Details

December 20th, 2023

D-Link G416 cfgsave backusb Command Injection Remote Code Execution Vulnerability

ZDI-23-1816
ZDI-CAN-21288

CVE ID CVE-2023-50200
CVSS SCORE 8.8, AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS D-Link
AFFECTED PRODUCTS G416
VULNERABILITY DETAILS

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link G416 routers. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the HTTP service listening on TCP port 80. 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=SAP10367
DISCLOSURE TIMELINE
  • 2023-07-12 - Vulnerability reported to vendor
  • 2023-12-20 - Coordinated public release of advisory
CREDIT Sina Kheirkhah (@SinSinology) of Summoning Team (@SummoningTeam)
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