CVE-2023-41221: D-Link DIR-3040 prog.cgi SetWLanRadioSecurity Stack-Based Buffer Overflow Remote Code Execution Vulnerability
First published: Fri May 03 2024(Updated: )
D-Link DIR-3040 prog.cgi SetWLanRadioSecurity 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-21621.
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-2023-41221?
CVE-2023-41221 is classified as a critical severity vulnerability due to its potential to allow remote code execution.
How do I fix CVE-2023-41221?
To fix CVE-2023-41221, users should update the D-Link DIR-3040 firmware to the latest version provided by D-Link.
Who is affected by CVE-2023-41221?
CVE-2023-41221 affects users of the D-Link DIR-3040 routers with vulnerable firmware.
Can CVE-2023-41221 be exploited without authentication?
No, CVE-2023-41221 requires authentication to exploit the stack-based buffer overflow.
What type of attack is associated with CVE-2023-41221?
CVE-2023-41221 is associated with remote code execution attacks targeting D-Link DIR-3040 routers.
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