PT-2022-6602 · D Link · D-Link Dap-2020+1

Published 2022-09-06 · Updated 2024-09-18 · CVE-2023-32143

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 specific flaw exists within the handling of requests to the "/cgi-bin/webupg" endpoint, resulting from the lack of proper validation of user-supplied data, which can cause an integer overflow before allocating a buffer. An attacker can leverage this issue to execute code in the context of root. The UPGCGI CheckAuth() function is also affected by a buffer overflow vulnerability in the stack.

Recommendations For D-Link DAP-1360, consider disabling the UPGCGI CheckAuth() function until a patch is available. For D-Link DAP-2020, consider disabling the UPGCGI CheckAuth() function until a patch is available. At the moment, there is no information about a newer version that contains a fix for this issue.

Fix

Stack Overflow

Weakness Enumeration

CWE-197

CWE-121

Related Identifiers

BDU:2023-02727

CVE-2023-32143

ZDI-23-535

Affected Products

D-Link Dap-1360

D-Link Dap-2020

References · 7

• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10324 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-23-535 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-32143 · Security Note
• https://bdu.fstec.ru/vul/2023-02727 · Security Note
• https://osv.dev/vulnerability/CVE-2023-32143 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-CAN-18423 · Note
• https://vuldb.com/ru/?id.228091 · Note