First published: Thu Jan 26 2023(Updated: )
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of multiple D-Link routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the lighttpd service, 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.
Credit: zdi-disclosures@trendmicro.com
Affected Software | Affected Version | How to fix |
---|---|---|
Dlink Dir-882-us Firmware | <=1.30b07 | |
Dlink Dir-882-us | ||
Dlink Dir-867 Firmware | <=1.30b08 | |
Dlink Dir-867 | ||
Dlink Dir-878 Firmware | <=1.30b06 | |
Dlink Dir-878 | ||
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The vulnerability ID for this D-Link vulnerability is CVE-2022-41140.
The severity of CVE-2022-41140 is high with a CVSS score of 8.8.
Multiple D-Link routers are affected by CVE-2022-41140, including the DIR-882-US, DIR-867, and DIR-878 models.
No, authentication is not required to exploit CVE-2022-41140.
To fix CVE-2022-41140, it is recommended to update to the latest firmware provided by D-Link and follow the instructions provided in their security announcement.