PT-2022-6230 · D Link · D-Link Dir-3040

Nicholas Zubrisky · Published 2022-12-23 · Updated 2023-04-08 · CVE-2022-43648

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 DIR-3040 version 1.20B03

Description This issue allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-3040 routers. Authentication is not required to exploit this issue. The specific flaw exists within the MiniDLNA service, resulting from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this issue to execute code in the context of the MiniDLNA service.

Recommendations As a temporary workaround, consider disabling the MiniDLNA service until a patch is available. Restrict access to the MiniDLNA service to minimize the risk of exploitation. Avoid using the MiniDLNA service in the affected D-Link DIR-3040 routers until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this issue.

Fix

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

BDU:2023-00553

CVE-2022-43648

ZDI-23-052

Affected Products

D-Link Dir-3040

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2022-43648 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-23-052 · Security Note
• https://osv.dev/vulnerability/CVE-2022-43648 · Vendor Advisory
• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10322 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-00553 · Security Note
• https://t.me/cvenotify/47796 · Telegram Post
• https://t.me/cibsecurity/61092 · Telegram Post