CVE-2023-41228: D-Link DIR-3040 prog.cgi SetUsersSettings Stack-Based Buffer Overflow Remote Code Execution Vulnerability
D-Link DIR-3040 prog.cgi SetUsersSettings 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-21654.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2023-41228?
CVE-2023-41228 is classified as a critical vulnerability due to its potential for remote code execution.
How do I fix CVE-2023-41228?
To fix CVE-2023-41228, update the D-Link DIR-3040 firmware to the latest version provided by the manufacturer.
Who is affected by CVE-2023-41228?
CVE-2023-41228 affects users of the D-Link DIR-3040 routers with vulnerable firmware.
What kind of attacks can exploit CVE-2023-41228?
CVE-2023-41228 can be exploited through stack-based buffer overflow attacks by authenticated network-adjacent attackers.
What actions should I take if I suspect an exploitation of CVE-2023-41228?
If you suspect exploitation of CVE-2023-41228, disconnect the device from the network and apply the firmware patch immediately.