Advisory Details

September 14th, 2022

D-Link DIR-2150 xupnpd Dreambox Plugin Command Injection Remote Code Execution Vulnerability

ZDI-22-1224
ZDI-CAN-15935

CVE ID CVE-2022-40720
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 DIR-2150
VULNERABILITY DETAILS

This vulnerability allows network-adjacent attackers to execute arbitrary commands on affected installations of D-Link DIR-2150 routers. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the Dreambox plugin for the xupnpd service, which listens on TCP port 4044 by default. 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 the router.

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=SAP10304
DISCLOSURE TIMELINE
  • 2022-04-01 - Vulnerability reported to vendor
  • 2022-09-14 - Coordinated public release of advisory
CREDIT Anonymous
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