CVE-2022-43625: D-Link DIR-1935 SetStaticRouteIPv4Settings NetMask Stack-based Buffer Overflow Remote Code Execution Vulnerability
First published: Wed Mar 29 2023(Updated: )
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-1935 1.03 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of SetStaticRouteIPv4Settings requests to the web management portal. When parsing the NetMask element, 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. Was ZDI-CAN-16144.
Credit: zdi-disclosures@trendmicro.com zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| D-Link DIR-1935 | ||
| D-link Dir-1935 Firmware | <=1.02 | |
| D-link Dir-1935 Firmware | =1.03-b1 | |
| D-link Dir-1935 Firmware | =1.03-b2 | |
| D-Link DIR-1935 | ||
| Dlink Dir-1935 Firmware | <=1.02 | |
| Dlink Dir-1935 Firmware | =1.03-b1 | |
| Dlink Dir-1935 Firmware | =1.03-b2 | |
| Dlink Dir-1935 |
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Reference Links
Frequently Asked Questions
What is CVE-2022-43625?
CVE-2022-43625 is a vulnerability that allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-1935 1.03 routers.
How severe is CVE-2022-43625?
CVE-2022-43625 has a severity value of 6.8, which is considered medium.
How can the vulnerability be exploited?
To exploit CVE-2022-43625, authentication is required, but the existing authentication mechanism can be bypassed.
What is the affected software of CVE-2022-43625?
The affected software is D-Link DIR-1935 firmware versions up to and including 1.03-b2.
How can I fix CVE-2022-43625?
To fix CVE-2022-43625, it is recommended to update to the latest available firmware version provided by D-Link.
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