CVE-2022-43621

moderate-risk
Published 2023-03-29

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-1935 1.03 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of HNAP login requests. The issue results from an incorrectly implemented comparison. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-16152.

Do I need to act?

~
4.0% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
ADJACENT_NETWORK / LOW complexity

Affected Products (3)

Dir-1935 Firmware
Dir-1935 Firmware
Dir-1935 Firmware

Affected Vendors

Dlink

References (4)

Patch https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP1...
Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-22-1503/
Patch https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP1...
Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-22-1503/
43
/ 100
moderate-risk
Severity 27/34 · High
Exploitability 7/34 · Low
Exposure 9/34 · Low