D-Link DIR-3040 prog.cgi SetQuickVPNSettings stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability was found in D-Link DIR-3040 and classified as critical. Affected by this issue is the function SetQuickVPNSettings of the file prog.cgi. Executing a manipulation can lead to stack-based overflow. This vulnerability is tracked as CVE-2023-41223. The attack is only possible within the local network. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in D-Link DIR-3040 (Router Operating System) (the affected version is unknown) and classified as critical. This vulnerability affects the function SetQuickVPNSettings of the file prog.cgi. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

D-Link DIR-3040 prog.cgi SetQuickVPNSettings PSK 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-21623.

The weakness was disclosed 09/07/2023 as ZDI-23-1331. The advisory is shared for download at zerodayinitiative.com. This vulnerability was named CVE-2023-41223 since 08/24/2023. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/15/2025).

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.8
NVD Vector: 🔍

CNA Base Score: 6.8
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/24/2023 🔍
09/07/2023 +14 days 🔍
09/07/2023 +0 days 🔍
05/15/2025 +616 days 🔍

Sourcesinfo

Vendor: dlink.com

Advisory: ZDI-23-1331
Status: Confirmed

CVE: CVE-2023-41223 (🔍)
GCVE (CVE): GCVE-0-2023-41223
GCVE (VulDB): GCVE-100-239152

Entryinfo

Created: 09/07/2023 23:24
Updated: 05/15/2025 15:34
Changes: 09/07/2023 23:24 (40), 05/15/2025 15:34 (37)
Complete: 🔍
Cache ID: 216::103

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