PT-2023-5832 · D Link · D-Link Dir-3040

Nicholas Zubrisky · Published 2023-07-12 · Updated 2025-05-15 · CVE-2023-41229

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 (affected versions not specified)

Description This issue allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-3040 routers. The specific flaw exists within the prog.cgi binary, which handles HNAP requests made to the lighttpd webserver listening on TCP ports 80 and 443. The issue results from the lack of proper validation of a user-supplied string before copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Memory Corruption

Heap Based Buffer Overflow

Weakness Enumeration

CWE-787

CWE-122

Related Identifiers

BDU:2023-06518

CVE-2023-41229

ZDI-23-1337

Affected Products

D-Link Dir-3040

References · 9

• https://zerodayinitiative.com/advisories/ZDI-23-1337 · Security Note
• https://osv.dev/vulnerability/CVE-2023-41229 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-41229 · Security Note
• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10350 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-06518 · Security Note
• https://t.me/cvenotify/122304 · Telegram Post
• https://vuldb.com/ru/?id.239146 · Note
• https://twitter.com/CVEnew/status/1786822834377064844 · Twitter Post
• https://twitter.com/TheZDIBugs/status/1699903533229682770 · Twitter Post