What is the severity of ZDI-CAN-16139?

The severity of ZDI-CAN-16139 is critical due to the ability for network-adjacent attackers to execute arbitrary code without authentication.

How do I fix ZDI-CAN-16139?

To fix ZDI-CAN-16139, users should update their D-Link DIR-1935 routers to the latest firmware version provided by D-Link.

Who is affected by ZDI-CAN-16139?

Users of D-Link DIR-1935 routers are affected by ZDI-CAN-16139, particularly those with unpatched firmware.

What type of attack is facilitated by ZDI-CAN-16139?

ZDI-CAN-16139 facilitates remote code execution attacks by allowing unauthorized access to the web management interface.

Is authentication required to exploit ZDI-CAN-16139?

No, authentication is not required to exploit ZDI-CAN-16139, making it more dangerous for affected users.

Vulnerability/
ZDI-CAN-16139

high

8.8

3/8/2024

ZDI-CAN-16139: 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-CAN-16139?
The severity of ZDI-CAN-16139 is critical due to the ability for network-adjacent attackers to execute arbitrary code without authentication.
How do I fix ZDI-CAN-16139?
To fix ZDI-CAN-16139, users should update their D-Link DIR-1935 routers to the latest firmware version provided by D-Link.
Who is affected by ZDI-CAN-16139?
Users of D-Link DIR-1935 routers are affected by ZDI-CAN-16139, particularly those with unpatched firmware.
What type of attack is facilitated by ZDI-CAN-16139?
ZDI-CAN-16139 facilitates remote code execution attacks by allowing unauthorized access to the web management interface.
Is authentication required to exploit ZDI-CAN-16139?
No, authentication is not required to exploit ZDI-CAN-16139, making it more dangerous for affected users.

agent/references
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/type
agent/description
agent/event
agent/tags
agent/source
vendor/d-link
canonical/d-link dir-1935

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