CVE-2021-45674 : Exploit Details and Defense Strategies
Learn about CVE-2021-45674 affecting NETGEAR routers with stored XSS vulnerability. Understand the impact, affected systems, exploitation, and mitigation steps.
Certain NETGEAR devices are affected by stored XSS. This impacts various router models including R7000, R7900, R8000, RAX15, RAX20, RAX200, RAX75, and RAX80.
Understanding CVE-2021-45674
What is CVE-2021-45674?
NETGEAR devices, specifically routers, are susceptible to stored cross-site scripting (XSS) attacks. The vulnerability exists in multiple router models mentioned in the descriptions.
The Impact of CVE-2021-45674
The impact is considered low, with high attack complexity required, physical access needed, and user interaction necessary.
Technical Details of CVE-2021-45674
Vulnerability Description
The vulnerability allows attackers to inject malicious scripts into the router's interface, potentially leading to unauthorized access or data theft.
Affected Systems and Versions
- R7000 before 1.0.11.110
- R7900 before 1.0.4.30
- R8000 before 1.0.4.62
- RAX15 before 1.0.2.82
- RAX20 before 1.0.2.82
- RAX200 before 1.0.3.106
- RAX75 before 1.0.3.106
- RAX80 before 1.0.3.106
Exploitation Mechanism
The exploit involves storing malicious scripts/content within the router's configuration settings, which, when viewed, can execute the malicious code.
Mitigation and Prevention
Immediate Steps to Take
- Disable remote management if not required
- Regularly check for firmware updates
- Implement strong, unique passwords
Long-Term Security Practices
- Monitor network activity for suspicious behavior
- Use secure VPNs for remote access
Patching and Updates
Ensure that affected router models are updated with the latest firmware provided by NETGEAR.