ZDI-CAN-12104: D-Link DAP-2020 webproc Stack-based Buffer Overflow Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2020 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the webproc endpoint, which listens on TCP port 80 by default. The issue results from the lack of proper validation of 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 DAP-2020 |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-CAN-12104?
The severity of ZDI-CAN-12104 is critical due to the potential for arbitrary code execution without authentication.
How do I fix ZDI-CAN-12104?
To fix ZDI-CAN-12104, you should update your D-Link DAP-2020 router to the latest firmware version provided by the manufacturer.
Who is affected by ZDI-CAN-12104?
ZDI-CAN-12104 affects installations of D-Link DAP-2020 routers that are accessible to network-adjacent attackers.
What type of vulnerability is ZDI-CAN-12104?
ZDI-CAN-12104 is a remote code execution vulnerability that allows attackers to execute arbitrary code.
Is authentication required to exploit ZDI-CAN-12104?
No, authentication is not required to exploit ZDI-CAN-12104, making it particularly dangerous.
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- alias/CVE-2021-34861
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