CVE-2023-41223: D-Link DIR-3040 prog.cgi SetQuickVPNSettings PSK Stack-Based Buffer Overflow Remote Code Execution Vulnerability
First published: Fri May 03 2024(Updated: )
D-Link DIR-3040 prog.cgi SetQuickVPNSettings PSK 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-3040 routers. Authentication is required to exploit this vulnerability. The specific flaw exists within the prog.cgi binary, which handles HNAP requests made to the lighttpd webserver listening on TCP ports 80 and 443. The issue results from the lack of proper validation of a user-supplied string before copying it to a fixed-size stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21623.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| D-Link DIR-3040 Firmware |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2023-41223?
CVE-2023-41223 is classified as a critical severity vulnerability due to its potential for remote code execution.
How do I fix CVE-2023-41223?
To fix CVE-2023-41223, update the D-Link DIR-3040 firmware to the latest version provided by D-Link.
Who is affected by CVE-2023-41223?
CVE-2023-41223 affects users of the D-Link DIR-3040 routers running vulnerable versions of the firmware.
What type of attack can CVE-2023-41223 facilitate?
CVE-2023-41223 can facilitate a remote code execution attack allowing attackers to run arbitrary code on the affected router.
Is authentication required to exploit CVE-2023-41223?
Yes, authentication is required to exploit CVE-2023-41223, limiting the vulnerability to network-adjacent attackers.
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