CVE-2023-41220: D-Link DIR-3040 prog.cgi SetSysEmailSettings Stack-Based Buffer Overflow Remote Code Execution Vulnerability
First published: Fri May 03 2024(Updated: )
D-Link DIR-3040 prog.cgi SetSysEmailSettings 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-21620.
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-2023-41220?
CVE-2023-41220 has been rated as a critical vulnerability due to its potential for remote code execution.
How do I fix CVE-2023-41220?
To fix CVE-2023-41220, update the D-Link DIR-3040 firmware to the latest version provided by the vendor.
Who is affected by CVE-2023-41220?
CVE-2023-41220 affects users of the D-Link DIR-3040 routers with vulnerable firmware versions.
What type of vulnerability is CVE-2023-41220?
CVE-2023-41220 is a stack-based buffer overflow vulnerability that can lead to remote code execution.
Is authentication required to exploit CVE-2023-41220?
Yes, authentication is required to exploit CVE-2023-41220 on the affected D-Link DIR-3040 routers.
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