EUVD-2025-19210

Comprehensive Technical Analysis of EUVD-2025-19210

1. Vulnerability Assessment and Severity Evaluation

The vulnerability described in EUVD-2025-19210 is a remote command injection flaw in the confirm.php interface of the WIFISKY 7-layer Flow Control Router. This vulnerability allows unauthenticated attackers to execute arbitrary OS commands via a specially-crafted HTTP GET request to the t parameter. The severity of this vulnerability is rated with a CVSS Base Score of 9.4, indicating a critical risk.

CVSS Vector Breakdown:

• AV:N (Network Vector): The vulnerability is exploitable over the network.
• AC:L (Low Complexity): The attack requires low skill or resources.
• AT:N (No Authentication): No authentication is required to exploit the vulnerability.
• PR:L (Low Privileges): The attacker requires low privileges to exploit the vulnerability.
• UI:N (No User Interaction): No user interaction is required.
• VC:H (High Confidentiality Impact): The vulnerability has a high impact on confidentiality.
• VI:H (High Integrity Impact): The vulnerability has a high impact on integrity.
• VA:H (High Availability Impact): The vulnerability has a high impact on availability.
• SC:H (High Scope Change): The vulnerability affects components beyond the security scope.
• SI:H (High Scope Integrity): The vulnerability affects the integrity of components beyond the security scope.
• SA:H (High Scope Availability): The vulnerability affects the availability of components beyond the security scope.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Remote Command Injection: An attacker can send a specially-crafted HTTP GET request to the confirm.php interface with a malicious payload in the t parameter.
• Unauthenticated Access: The vulnerability can be exploited without any authentication, making it accessible to a wide range of attackers.

Exploitation Methods:

• Crafting Malicious Requests: Attackers can use tools like curl or custom scripts to send HTTP GET requests with payloads designed to execute OS commands.
• Automated Scanning: Attackers may use automated tools to scan for vulnerable routers and exploit them en masse.

3. Affected Systems and Software Versions

Affected Systems:

• WIFISKY 7-layer Flow Control Router

Software Versions:

• The vulnerability affects all versions of the WIFISKY 7-layer Flow Control Router, as indicated by the product version "0" in the ENISA ID Product field.

4. Recommended Mitigation Strategies

Immediate Actions:

• Patch Management: Apply the latest firmware updates provided by Shenzhen Lingkong Technology.
• Network Segmentation: Isolate the affected routers from critical networks to limit the potential impact of an attack.
• Firewall Rules: Implement strict firewall rules to block unauthorized access to the confirm.php interface.

Long-Term Strategies:

• Input Validation: Ensure that all input parameters are properly validated and sanitized to prevent command injection.
• Regular Audits: Conduct regular security audits and vulnerability assessments to identify and mitigate similar issues.
• Monitoring: Implement continuous monitoring to detect and respond to suspicious activities.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to the European cybersecurity landscape, particularly for organizations and individuals using the WIFISKY 7-layer Flow Control Router. The potential for unauthenticated remote command execution can lead to:

• Data Breaches: Unauthorized access to sensitive information.
• Service Disruption: Compromise of network availability and integrity.
• Widespread Exploitation: Given the ease of exploitation, attackers could target multiple devices simultaneously, leading to large-scale attacks.

6. Technical Details for Security Professionals

Exploitation Example:

curl -X GET "http://<target_ip>/confirm.php?t=<malicious_payload>"

Detection:

• Log Analysis: Monitor web server logs for unusual GET requests to the confirm.php interface.
• Intrusion Detection Systems (IDS): Deploy IDS rules to detect and alert on suspicious HTTP GET requests.

Mitigation Script:

# Example script to block access to confirm.php
iptables -A INPUT -p tcp --dport 80 -m string --string "confirm.php" --algo bm -j DROP

References for Further Reading:

• Shenzhen Lingkong Technology
• CNVD Advisory
• S4E Tools
• VarioTDBS Vulnerability
• VulnCheck Advisory
• Nuclei Templates

By addressing this vulnerability promptly and effectively, organizations can significantly reduce the risk of exploitation and protect their networks from potential attacks.