PT-2021-17769 · D Link · D-Link Dir-841

Vitor Esperança · Published 2021-03-11 · Updated 2021-04-23 · CVE-2021-28143

Positive Technologies (AI Summary)

CVSS v3.1

8.0

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: D-Link DIR-841 versions 3.03 through 3.04

Description: The issue allows authenticated command injection via ping, ping6, or traceroute under System Tools, specifically affecting the /jsonrpc endpoint.

Recommendations: For versions 3.03 and 3.04, consider disabling the System Tools feature or restricting access to the /jsonrpc endpoint until a patch is available. As a temporary workaround, avoid using the ping, ping6, or traceroute commands under System Tools to minimize the risk of exploitation.

Exploit

Fix

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2021-28143

Affected Products

D-Link Dir-841

References · 5

• 🔥 https://github.com/vitorespf/Advisories/blob/master/DLINK-DIR-841-command-injection.txt · Exploit
• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10207 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-28143 · Security Note
• https://osv.dev/vulnerability/CVE-2021-28143 · Vendor Advisory
• https://t.me/cibsecurity/24824 · Telegram Post