What is the severity of ZDI-22-1491?

The severity of ZDI-22-1491 is critical due to the potential for arbitrary code execution by unauthenticated attackers.

How do I fix ZDI-22-1491?

To fix ZDI-22-1491, update your D-Link DIR-1935 router to the latest firmware provided by D-Link.

Who is affected by ZDI-22-1491?

ZDI-22-1491 affects users of D-Link DIR-1935 routers without the latest security updates.

What type of attacks are possible with ZDI-22-1491?

Attackers can execute arbitrary code remotely on vulnerable D-Link DIR-1935 routers.

Is authentication required to exploit ZDI-22-1491?

No, authentication is not required to exploit ZDI-22-1491, making it particularly dangerous.

Vulnerability/
ZDI-22-1491

high

8.8

3/8/2024

ZDI-22-1491: D-Link DIR-1935 HNAP_AUTH Stack-based Buffer Overflow Remote Code Execution Vulnerability

This vulnerability allows network-adjacent attackers to execute arbitrary code 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 Login requests to the web management portal. When parsing the HNAP_AUTH header, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root.

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-22-1491?
The severity of ZDI-22-1491 is critical due to the potential for arbitrary code execution by unauthenticated attackers.
How do I fix ZDI-22-1491?
To fix ZDI-22-1491, update your D-Link DIR-1935 router to the latest firmware provided by D-Link.
Who is affected by ZDI-22-1491?
ZDI-22-1491 affects users of D-Link DIR-1935 routers without the latest security updates.
What type of attacks are possible with ZDI-22-1491?
Attackers can execute arbitrary code remotely on vulnerable D-Link DIR-1935 routers.
Is authentication required to exploit ZDI-22-1491?
No, authentication is not required to exploit ZDI-22-1491, making it particularly dangerous.

agent/references
agent/type
agent/softwarecombine
collector/zdi-advisory
source/ZDI
alias/ZDI-22-1491
alias/ZDI-CAN-16139
alias/CVE-2022-43622
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-22-1491?
The severity of ZDI-22-1491 is critical due to the potential for arbitrary code execution by unauthenticated attackers.
How do I fix ZDI-22-1491?
To fix ZDI-22-1491, update your D-Link DIR-1935 router to the latest firmware provided by D-Link.
Who is affected by ZDI-22-1491?
ZDI-22-1491 affects users of D-Link DIR-1935 routers without the latest security updates.
What type of attacks are possible with ZDI-22-1491?
Attackers can execute arbitrary code remotely on vulnerable D-Link DIR-1935 routers.
Is authentication required to exploit ZDI-22-1491?
No, authentication is not required to exploit ZDI-22-1491, making it particularly dangerous.