Advisory Details

August 25th, 2023

D-Link DAP-2622 DDP Reboot Auth Password Stack-based Buffer Overflow Remote Code Execution Vulnerability

ZDI-23-1234
ZDI-CAN-20055

CVE ID CVE-2023-35728
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 DAP-2622
VULNERABILITY DETAILS

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2622 routers. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the DDP service. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. 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=SAP10349
DISCLOSURE TIMELINE
  • 2023-01-20 - Vulnerability reported to vendor
  • 2023-08-25 - Coordinated public release of advisory
CREDIT Dmitry "InfoSecDJ" Janushkevich of Trend Micro Zero Day Initiative
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