Advisory Details

September 14th, 2022

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

ZDI-22-1223
ZDI-CAN-15906

CVE ID CVE-2022-40719
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 xupnpd_generic.lua plugin for the xupnpd service, which listens on TCP port 4044 by default. When parsing the feed parameter, the process does not properly validate 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 service account.

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
  • 2022-04-13 - Vulnerability reported to vendor
  • 2022-09-14 - Coordinated public release of advisory
CREDIT Anonymous
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