CVE-2021-45987 : Vulnerability Insights and Analysis
Discover the impact of CVE-2021-45987, a command injection flaw in Tenda routers G1 and G3. Learn how to secure your network and prevent unauthorized access.
Tenda routers G1 and G3 v15.11.0.17(9502)_CN were found to have a command injection vulnerability that allows attackers to execute arbitrary commands via the hostName parameter.
Understanding CVE-2021-45987
This CVE identifies a critical security issue in specific Tenda routers.
What is CVE-2021-45987?
The vulnerability in Tenda routers G1 and G3 v15.11.0.17(9502)_CN enables malicious actors to run unauthorized commands through a particular parameter.
The Impact of CVE-2021-45987
This vulnerability could lead to unauthorized access and control over affected routers, potentially compromising the entire network.
Technical Details of CVE-2021-45987
Key technical insights into the vulnerability.
Vulnerability Description
The vulnerability exists in the function formSetNetCheckTools, allowing the execution of arbitrary commands through the hostName parameter.
Affected Systems and Versions
- Product: Tenda routers G1 and G3
- Version: v15.11.0.17(9502)_CN
Exploitation Mechanism
Attackers can exploit this vulnerability by sending specially crafted commands via the hostName parameter.
Mitigation and Prevention
Actions to mitigate and prevent exploitation of CVE-2021-45987.
Immediate Steps to Take
- Disable remote management if not required
- Apply vendor-supplied patches promptly
Long-Term Security Practices
- Regularly update router firmware
- Implement network segmentation and access controls
Patching and Updates
Ensure timely installation of vendor-released patches to address the vulnerability.