CVE-2023-41227: D-Link DIR-3040 prog.cgi SetTriggerPPPoEValidate Stack-Based Buffer Overflow Remote Code Execution Vulnerability
D-Link DIR-3040 prog.cgi SetTriggerPPPoEValidate 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-21653.
Affected Software
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Event History
Frequently Asked Questions
What is the severity of CVE-2023-41227?
CVE-2023-41227 is classified as a high severity vulnerability due to its potential for remote code execution.
How do I fix CVE-2023-41227?
To mitigate CVE-2023-41227, users should update their D-Link DIR-3040 router firmware to the latest version provided by D-Link.
What type of vulnerability is CVE-2023-41227?
CVE-2023-41227 is a stack-based buffer overflow vulnerability that can lead to remote code execution.
Who is affected by CVE-2023-41227?
CVE-2023-41227 affects users of D-Link DIR-3040 routers running vulnerable firmware versions.
Is authentication required to exploit CVE-2023-41227?
Yes, authentication is required for an attacker to exploit CVE-2023-41227.