CVE-2018-18728 : Security Advisory and Response
Learn about CVE-2018-18728, a vulnerability in Tenda AC9, AC15, and AC18 routers allowing unauthorized code execution. Find mitigation steps and long-term security practices.
A vulnerability has been identified in Tenda AC9 V15.03.05.19(6318)_CN, AC15 V15.03.05.19_CN, and AC18 V15.03.05.19(6318)_CN devices that allows unauthorized code execution through the use of shell metacharacters in the usbName field.
Understanding CVE-2018-18728
This CVE entry describes a security issue that enables remote code execution on specific Tenda router models.
What is CVE-2018-18728?
The vulnerability in Tenda routers permits attackers to execute code remotely by exploiting shell metacharacters in the usbName field through a POST request to the __fastcall function.
The Impact of CVE-2018-18728
The exploitation of this vulnerability can lead to unauthorized code execution on the affected Tenda router models, potentially compromising the security and integrity of the devices and the network they are connected to.
Technical Details of CVE-2018-18728
This section provides more in-depth technical insights into the CVE-2018-18728 vulnerability.
Vulnerability Description
The vulnerability allows threat actors to execute code remotely on Tenda AC9 V15.03.05.19(6318)_CN, AC15 V15.03.05.19_CN, and AC18 V15.03.05.19(6318)_CN devices by leveraging shell metacharacters in the usbName field.
Affected Systems and Versions
- Tenda AC9 V15.03.05.19(6318)_CN
- Tenda AC15 V15.03.05.19_CN
- Tenda AC18 V15.03.05.19(6318)_CN
Exploitation Mechanism
The vulnerability can be exploited by sending a POST request to the __fastcall function with specific shell metacharacters in the usbName field.
Mitigation and Prevention
Protecting systems from CVE-2018-18728 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Disable remote management access if not required
- Implement strong firewall rules to restrict unauthorized access
- Regularly monitor network traffic for any suspicious activities
Long-Term Security Practices
- Keep router firmware up to date with the latest security patches
- Conduct regular security audits and penetration testing
- Educate users about safe browsing habits and phishing awareness
Patching and Updates
- Check for firmware updates from Tenda and apply them promptly to mitigate the vulnerability