Description
A vulnerability has been found in Tenda WH450 1.0.0.18. This issue affects some unknown processing of the file /goform/SafeUrlFilter. The manipulation of the argument page leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2025-204690
1. Vulnerability Assessment and Severity Evaluation
The vulnerability identified in Tenda WH450 1.0.0.18 involves a stack-based buffer overflow in the processing of the file /goform/SafeUrlFilter. This issue arises from the manipulation of the page argument, which can lead to a buffer overflow condition. The severity of this vulnerability is significant, as indicated by the CVSS Base Score of 9.3. The CVSS vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P highlights the following key points:
- Attack Vector (AV:N): The vulnerability can be exploited over the network.
- Attack Complexity (AC:L): The attack is of low complexity.
- Authentication (AT:N): No authentication is required to exploit the vulnerability.
- Privileges Required (PR:N): No special privileges are needed.
- User Interaction (UI:N): No user interaction is required.
- Confidentiality (VC:H): High impact on confidentiality.
- Integrity (VI:H): High impact on integrity.
- Availability (VA:H): High impact on availability.
- Exploit Code Maturity (E:P): Proof-of-concept code is available.
Given these factors, the vulnerability is critical and poses a significant risk to affected systems.
2. Potential Attack Vectors and Exploitation Methods
The primary attack vector for this vulnerability is remote exploitation via network access. An attacker can manipulate the page argument in the /goform/SafeUrlFilter file to trigger a stack-based buffer overflow. This can be achieved through crafted HTTP requests sent to the vulnerable device. The exploit code is publicly available, which increases the likelihood of attacks.
Potential exploitation methods include:
- Remote Code Execution (RCE): By exploiting the buffer overflow, an attacker could execute arbitrary code on the device.
- Denial of Service (DoS): The buffer overflow could crash the device, leading to a denial of service.
- Data Exfiltration: An attacker could potentially exfiltrate sensitive data from the device.
3. Affected Systems and Software Versions
The vulnerability specifically affects:
- Product: Tenda WH450
- Version: 1.0.0.18
Other versions of the Tenda WH450 and related products may also be affected, but this has not been confirmed. Users and administrators should verify the version of their devices and apply necessary updates or patches.
4. Recommended Mitigation Strategies
To mitigate the risk associated with this vulnerability, the following strategies are recommended:
- Patch Management: Apply the latest firmware updates provided by Tenda. Ensure that all devices are running the most recent, secure version of the software.
- Network Segmentation: Isolate vulnerable devices from critical networks to limit the potential impact of an exploit.
- Access Control: Implement strict access controls to limit network access to the device. Use firewalls and network access control (NAC) solutions to restrict unauthorized access.
- Intrusion Detection/Prevention Systems (IDS/IPS): Deploy IDS/IPS to monitor and block suspicious network traffic targeting the vulnerable endpoint.
- Regular Audits: Conduct regular security audits and vulnerability assessments to identify and address potential security weaknesses.
5. Impact on European Cybersecurity Landscape
The disclosure of this vulnerability has significant implications for the European cybersecurity landscape. Given the widespread use of Tenda devices, particularly in small to medium-sized enterprises (SMEs) and home networks, the potential for widespread exploitation is high. The availability of proof-of-concept code further exacerbates the risk. Organizations and individuals within the EU should prioritize patching and securing their devices to mitigate the risk of exploitation.
6. Technical Details for Security Professionals
For security professionals, the following technical details are pertinent:
- Vulnerability Type: Stack-based buffer overflow.
- Affected Component:
/goform/SafeUrlFilterfile. - Vulnerable Argument:
page. - Exploit Code: Publicly available proof-of-concept code can be found at the referenced GitHub repository.
- Detection: Monitor network traffic for unusual patterns targeting the
/goform/SafeUrlFilterendpoint. Look for anomalies in HTTP requests, particularly those manipulating thepageargument. - Response: Implement incident response plans to quickly identify and mitigate any detected exploitation attempts. Ensure that logging and monitoring are in place to capture relevant data for forensic analysis.
Conclusion
The vulnerability in Tenda WH450 1.0.0.18 is critical and requires immediate attention from users and administrators. By understanding the technical details and implementing the recommended mitigation strategies, organizations can significantly reduce the risk of exploitation. Continuous monitoring and proactive security measures are essential to safeguard against potential attacks.