D-Link DIR-3040 prog.cgi SetDynamicDNSSettings Stack-Based Buffer Overflow Remote Code Execution Vulnerability
CVE-2023-41216

6.8MEDIUM

Key Information:

Vendor

D-link
Status
Dir-3040
Vendor
CVE Published:
3 May 2024

What is CVE-2023-41216?

A buffer overflow vulnerability exists in the D-Link DIR-3040 router, specifically within the prog.cgi binary responsible for processing HNAP requests on the lighttpd web server. This security flaw arises from inadequate validation of user-supplied input when copied to a fixed-length stack buffer, potentially allowing network-adjacent attackers to execute arbitrary code with root privileges on inadequately secured systems. Authentication is a prerequisite for the exploitation of this vulnerability, heightening the importance of securing device management interfaces.

Affected Version(s)

DIR-3040 120B03

References

https://www.zerodayinitiative.com/advisories/ZDI-23-1324/
x_research-advisory
https://supportannouncement.us.dlink.com/announcement/pub...
vendor-advisory

CVSS V3.1

Score:
6.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.