What is the severity of ZDI-22-1503?

The severity of ZDI-22-1503 is high due to the potential for network-adjacent attackers to bypass authentication without any required credentials.

How do I fix ZDI-22-1503?

To fix ZDI-22-1503, update the D-Link DIR-1935 router firmware to the latest version provided by D-Link.

What type of attacks can occur due to ZDI-22-1503?

ZDI-22-1503 can allow attackers to gain unauthorized access to the router's administrative interface and manipulate its configuration.

Who is affected by ZDI-22-1503?

The vulnerability ZDI-22-1503 affects installations of D-Link DIR-1935 routers that have not yet been updated to address the issue.

Is authentication required to exploit ZDI-22-1503?

No, authentication is not required to exploit the vulnerability ZDI-22-1503, making it particularly dangerous.

Vulnerability/
ZDI-22-1503

high

8.8

3/8/2024

ZDI-22-1503: D-Link DIR-1935 HNAP Incorrect Comparison Authentication Bypass Vulnerability

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-1935 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.

Affected Software	Affected Version	How to fix
D-Link DIR-1935

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Reference Links

Frequently Asked Questions

What is the severity of ZDI-22-1503?
The severity of ZDI-22-1503 is high due to the potential for network-adjacent attackers to bypass authentication without any required credentials.
How do I fix ZDI-22-1503?
To fix ZDI-22-1503, update the D-Link DIR-1935 router firmware to the latest version provided by D-Link.
What type of attacks can occur due to ZDI-22-1503?
ZDI-22-1503 can allow attackers to gain unauthorized access to the router's administrative interface and manipulate its configuration.
Who is affected by ZDI-22-1503?
The vulnerability ZDI-22-1503 affects installations of D-Link DIR-1935 routers that have not yet been updated to address the issue.
Is authentication required to exploit ZDI-22-1503?
No, authentication is not required to exploit the vulnerability ZDI-22-1503, making it particularly dangerous.

agent/references
agent/type
agent/softwarecombine
collector/zdi-advisory
source/ZDI
alias/ZDI-22-1503
alias/ZDI-CAN-16152
alias/CVE-2022-43621
agent/software-canonical-lookup
agent/severity
agent/title
agent/tags
agent/description
agent/event
agent/source
vendor/d-link
canonical/d-link dir-1935

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Frequently Asked Questions

What is the severity of ZDI-22-1503?
The severity of ZDI-22-1503 is high due to the potential for network-adjacent attackers to bypass authentication without any required credentials.
How do I fix ZDI-22-1503?
To fix ZDI-22-1503, update the D-Link DIR-1935 router firmware to the latest version provided by D-Link.
What type of attacks can occur due to ZDI-22-1503?
ZDI-22-1503 can allow attackers to gain unauthorized access to the router's administrative interface and manipulate its configuration.
Who is affected by ZDI-22-1503?
The vulnerability ZDI-22-1503 affects installations of D-Link DIR-1935 routers that have not yet been updated to address the issue.
Is authentication required to exploit ZDI-22-1503?
No, authentication is not required to exploit the vulnerability ZDI-22-1503, making it particularly dangerous.