PT-2023-2567 · D Link · D-Link Dap-2020+1

Published 2023-05-04 · Updated 2025-05-16 · CVE-2023-32136

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions D-Link DAP-1360 (affected versions not specified) D-Link DAP-2020 (affected versions not specified)

Description This issue allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link routers. Authentication is not required to exploit this issue. The flaw exists within the handling of requests to the "/cgi-bin/webproc" endpoint. When parsing the var:menu parameter, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this issue to execute code in the context of root.

Recommendations For D-Link DAP-1360, as a temporary workaround, consider disabling the /cgi-bin/webproc endpoint until a patch is available. For D-Link DAP-2020, restrict access to the /cgi-bin/webproc endpoint to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this issue.

Fix

RCE

Stack Overflow

Memory Corruption

Weakness Enumeration

CWE-121

CWE-787

Related Identifiers

BDU:2023-02382

CVE-2023-32136

ZDI-23-528

Affected Products

D-Link Dap-1360

D-Link Dap-2020

References · 8

• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10324 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-23-528 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-32136 · Security Note
• https://bdu.fstec.ru/vul/2023-02382 · Security Note
• https://osv.dev/vulnerability/CVE-2023-32136 · Vendor Advisory
• https://twitter.com/VulmonFeeds/status/1786274990339342732 · Twitter Post
• https://zerodayinitiative.com/advisories/ZDI-CAN-18414 · Note
• https://t.me/cvenotify/122663 · Telegram Post