PT-2023-4998 · D Link · D-Link Dir-3040

Nicholas Zubrisky + 1 · Published 2023-07-06 · Updated 2025-05-15 · CVE-2023-41217

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

AV:A/AC:H/PR:L/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, specifically the Password variable, before copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root by sending specially crafted HNAP requests to ports TCP 80 and 443. Authentication is required to exploit this vulnerability.

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

RCE

Stack Overflow

Memory Corruption

Weakness Enumeration

CWE-121

CWE-787

Related Identifiers

BDU:2023-05537

CVE-2023-41217

ZDI-23-1325

Affected Products

D-Link Dir-3040

References · 8

• https://zerodayinitiative.com/advisories/ZDI-23-1325 · Security Note
• https://bdu.fstec.ru/vul/2023-05537 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-41217 · Security Note
• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10350 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-41217 · Vendor Advisory
• https://t.me/cvenotify/122293 · Telegram Post
• https://twitter.com/CVEnew/status/1786822849153704057 · Twitter Post
• https://vuldb.com/ru/?id.239158 · Note