CVE-2018-18707 : Vulnerability Insights and Analysis
Discover the buffer overflow vulnerability in Tenda routers affecting models AC7, AC9, AC10, AC15, and AC18. Learn the impact, technical details, and mitigation steps for CVE-2018-18707.
A vulnerability has been discovered on devices such as Tenda AC7 V15.03.06.44_CN, AC9 V15.03.05.19(6318)_CN, AC10 V15.03.06.23_CN, AC15 V15.03.05.19_CN, and AC18 V15.03.05.19(6318)_CN, affecting the web server's httpd due to a buffer overflow vulnerability.
Understanding CVE-2018-18707
This CVE identifies a buffer overflow vulnerability in Tenda routers, potentially leading to a security compromise.
What is CVE-2018-18707?
The vulnerability occurs in the httpd web server of Tenda routers when processing the "ssid" parameter in a post request, allowing an attacker to override the function's return address.
The Impact of CVE-2018-18707
- Attackers can exploit this vulnerability to execute arbitrary code or crash the affected devices.
- Unauthorized access to sensitive information or complete device compromise is possible.
Technical Details of CVE-2018-18707
This section provides detailed technical insights into the vulnerability.
Vulnerability Description
The issue arises from a buffer overflow in the httpd web server of Tenda routers when handling the "ssid" parameter, leading to a stack-based buffer overflow.
Affected Systems and Versions
- Tenda AC7 V15.03.06.44_CN
- Tenda AC9 V15.03.05.19(6318)_CN
- Tenda AC10 V15.03.06.23_CN
- Tenda AC15 V15.03.05.19_CN
- Tenda AC18 V15.03.05.19(6318)_CN
Exploitation Mechanism
The vulnerability is exploited by manipulating the "ssid" parameter in a post request to trigger a buffer overflow, potentially leading to arbitrary code execution.
Mitigation and Prevention
Protecting systems from CVE-2018-18707 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by Tenda to address the vulnerability.
- Monitor network traffic for any suspicious activities that could indicate exploitation attempts.
Long-Term Security Practices
- Regularly update router firmware to ensure the latest security fixes are in place.
- Implement network segmentation to limit the impact of potential attacks.
Patching and Updates
- Tenda may release firmware updates to patch the vulnerability; ensure timely installation to mitigate the risk of exploitation.