PT-2022-2079 · D Link · D-Link Dir-850L

Published 2022-03-04 · Updated 2022-09-09 · CVE-2021-46378

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions D-Link DIR-850 versions ET850-1.08TRb03

Description The issue is related to errors in loading configuration files in the D-Link DIR-850 router's firmware. It allows a remote attacker to redirect users to an arbitrary URL due to an incorrect access control vulnerability. This can be exploited through an unauthenticated remote configuration download.

Recommendations For version ET850-1.08TRb03, update the firmware to a version that addresses the incorrect access control vulnerability. As a temporary workaround, consider restricting access to the configuration download feature to minimize the risk of exploitation.

Exploit

Fix

Open Redirect

Weakness Enumeration

CWE-425

CWE-601

CWE-264

Related Identifiers

BDU:2022-01906

CVE-2021-46378

Affected Products

D-Link Dir-850L

References · 12

• 🔥 https://drive.google.com/file/d/1S69wOovVa8NRVUXcB0PkVvZHFxREcD4Y/view?usp=sharing · Exploit
• 🔥 https://exploit-db.com/exploits/50906 · Exploit
• 🔥 http://packetstormsecurity.com/files/167042/DLINK-DIR850-Insecure-Direct-Object-Reference.html · Exploit
• https://dlink.com/en/security-bulletin · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-46378 · Security Note
• https://bdu.fstec.ru/vul/2022-01906 · Security Note
• https://osv.dev/vulnerability/CVE-2021-46378 · Vendor Advisory
• https://yanac.hu/2022/03/04/d-link-dir850-et850-1-08trb03-url-redirect/?utm_source=rss&utm_medium=rss&utm_campaign=d-link-dir850-et850-1-08trb03-url-redirect · Note
• https://vuldb.com/?id.194224 · Note
• https://yanac.hu/2022/03/04/d-link-dir850-et850-1-08trb03-url-redirect/?utm_source=rss&utm_medium=rss&utm_campaign=d-link-dir850-et850-1-08trb03-url-redirect · Note
• https://t.me/cibsecurity/38437 · Telegram Post
• https://t.me/cvenotify/27761 · Telegram Post