Description
D-Link N300 WI-FI Router DIR-605L v2.13B01 was discovered to contain a stack overflow via the FILECODE parameter at /goform/formLogin.
EPSS Score:
4%
Comprehensive Technical Analysis of EUVD-2023-28407
1. Vulnerability Assessment and Severity Evaluation
The vulnerability EUVD-2023-28407, also known as CVE-2023-24351, affects the D-Link N300 WI-FI Router DIR-605L v2.13B01. The issue is a stack overflow vulnerability in the FILECODE parameter at /goform/formLogin. The CVSS (Common Vulnerability Scoring System) base score of 9.8 indicates a critical severity level. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H breaks down as follows:
- AV:N (Attack Vector: Network): The vulnerability is exploitable over the network.
- AC:L (Attack Complexity: Low): The attack requires low complexity.
- PR:N (Privileges Required: None): No privileges are required to exploit the vulnerability.
- UI:N (User Interaction: None): No user interaction is required.
- S:U (Scope: Unchanged): The vulnerability does not change the security scope.
- C:H (Confidentiality: High): The vulnerability has a high impact on confidentiality.
- I:H (Integrity: High): The vulnerability has a high impact on integrity.
- A:H (Availability: High): The vulnerability has a high impact on availability.
2. Potential Attack Vectors and Exploitation Methods
The stack overflow vulnerability can be exploited by sending a specially crafted request to the /goform/formLogin endpoint with a malicious FILECODE parameter. This can lead to arbitrary code execution on the affected device. Potential attack vectors include:
- Remote Code Execution (RCE): An attacker can send a malicious payload to execute arbitrary code on the router.
- Denial of Service (DoS): An attacker can crash the router, leading to a denial of service.
- Data Exfiltration: An attacker can potentially exfiltrate sensitive data from the router.
3. Affected Systems and Software Versions
The vulnerability specifically affects the D-Link N300 WI-FI Router DIR-605L with firmware version v2.13B01. Other versions and models may also be affected, but this has not been confirmed. Users should check for updates and patches from D-Link.
4. Recommended Mitigation Strategies
To mitigate the risk associated with this vulnerability, the following strategies are recommended:
- Firmware Update: Immediately update the router firmware to the latest version provided by D-Link.
- Network Segmentation: Isolate the router from critical networks to limit the potential impact of an exploit.
- Firewall Rules: Implement strict firewall rules to restrict access to the router's management interface.
- Monitoring and Logging: Enable logging and monitoring to detect any suspicious activity targeting the router.
- Access Control: Limit access to the router's management interface to trusted IP addresses and use strong, unique passwords.
5. Impact on European Cybersecurity Landscape
The vulnerability poses a significant risk to European cybersecurity, particularly for home users and small businesses that rely on D-Link routers. Given the critical nature of the vulnerability, it could be exploited by threat actors to gain unauthorized access to networks, exfiltrate data, or disrupt services. The widespread use of D-Link routers in Europe amplifies the potential impact.
6. Technical Details for Security Professionals
- Vulnerability Type: Stack Overflow
- Affected Parameter: FILECODE
- Endpoint:
/goform/formLogin - Exploitability: The vulnerability can be exploited remotely without authentication.
- Mitigation: Patching the firmware is the primary mitigation strategy. Additional measures include network segmentation, firewall rules, and access control.
- Detection: Security professionals should look for unusual network traffic targeting the
/goform/formLoginendpoint and monitor for any signs of unauthorized access or code execution.
Conclusion
EUVD-2023-28407 is a critical vulnerability affecting D-Link N300 WI-FI Routers. The stack overflow in the FILECODE parameter can lead to remote code execution, denial of service, and data exfiltration. Immediate firmware updates and additional security measures are essential to mitigate the risk. The impact on the European cybersecurity landscape is significant, highlighting the need for vigilant monitoring and proactive security practices.