PT-2022-5534 · D Link · D-Link Dir-1935

Published 2022-06-17 · Updated 2023-11-08 · CVE-2022-43620

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions D-Link DIR-1935 version 1.03

Description This issue allows network-adjacent attackers to bypass authentication on affected installations. The specific flaw exists within the handling of HNAP login requests, resulting from the lack of proper implementation of the authentication algorithm. An attacker can leverage this to bypass authentication on the system.

Recommendations For D-Link DIR-1935 version 1.03, as a temporary workaround, consider disabling the handling of HNAP login requests until a patch is available. Restrict access to the HNAP protocol to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

BDU:2022-06863

CVE-2022-43620

ZDI-22-1494

Affected Products

D-Link Dir-1935

References · 8

• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10310 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-22-1494 · Security Note
• https://osv.dev/vulnerability/CVE-2022-43620 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-06863 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-43620 · Security Note
• https://t.me/cvenotify/47685 · Telegram Post
• https://t.me/cibsecurity/61088 · Telegram Post
• https://vuldb.com/ru/?id.212986 · Note