PT-2021-14796 · D Link · D-Link Dir-3040

Dave Mcdaniel · Published 2021-07-16 · Updated 2022-07-29 · CVE-2021-21820

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 A hard-coded password vulnerability exists in the Libcli Test Environment functionality. This issue can be triggered by a specially crafted network request, potentially leading to code execution. An attacker can exploit this by sending a sequence of requests.

Recommendations For D-LINK DIR-3040 version 1.13B03, consider restricting access to the Libcli Test Environment functionality until a fix is available. As a temporary workaround, avoid using the affected functionality to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Using Hardcoded Credentials

Weakness Enumeration

CWE-798

Related Identifiers

CVE-2021-21820

Affected Products

D-Link Dir-3040

References · 4

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2021-1285 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-21820 · Security Note
• https://osv.dev/vulnerability/CVE-2021-21820 · Vendor Advisory
• https://t.me/cibsecurity/26211 · Telegram Post