PT-2021-14836 · D Link · D-Link Dir-3040

Dave Mcdaniel · Published 2021-09-23 · Updated 2022-07-21 · CVE-2021-21913

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions D-LINK DIR-3040 version 1.13B03

Description An information disclosure issue exists in the WiFi Smart Mesh functionality. A specially-crafted network request can lead to command execution. An attacker can connect to the MQTT service to trigger this issue.

Recommendations For D-LINK DIR-3040 version 1.13B03, consider restricting access to the MQTT service as a temporary workaround until a patch is available.

Exploit

Fix

Using Hardcoded Credentials

Weakness Enumeration

CWE-798

Related Identifiers

CVE-2021-21913

Affected Products

D-Link Dir-3040

References · 4

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2021-1361 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-21913 · Security Note
• https://osv.dev/vulnerability/CVE-2021-21913 · Vendor Advisory
• https://t.me/cibsecurity/29314 · Telegram Post