D-Link DIR-3040 prog.cgi SetWan2Settings Stack-Based Buffer Overflow Remote Code Execution Vulnerability
CVE-2023-41222

6.8MEDIUM

Key Information:

Vendor

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

What is CVE-2023-41222?

A stack-based buffer overflow vulnerability exists in the D-Link DIR-3040 routers due to improper validation of a user-supplied string in the prog.cgi binary, which processes HNAP requests received by the lighttpd web server on TCP ports 80 and 443. Attackers with network adjacency and authentication access can exploit this flaw, potentially allowing them to execute arbitrary code with root privileges on the vulnerable devices. Proper system hygiene and updates are recommended to mitigate risks associated with this vulnerability.

Affected Version(s)

DIR-3040 120B03

References

https://www.zerodayinitiative.com/advisories/ZDI-23-1330/
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

.