CVE-2019-20746 Explained : Impact and Mitigation
Learn about CVE-2019-20746, a reflected XSS vulnerability impacting various NETGEAR device models. Discover the impact, affected systems, exploitation, and mitigation steps.
NETGEAR devices are vulnerable to reflected XSS, impacting various models and versions.
Understanding CVE-2019-20746
This CVE involves a reflected Cross-Site Scripting (XSS) vulnerability affecting multiple NETGEAR device models.
What is CVE-2019-20746?
CVE-2019-20746 is a security vulnerability that allows attackers to inject malicious scripts into web pages viewed by users.
The Impact of CVE-2019-20746
- CVSS Base Score: 4.3 (Medium Severity)
- Attack Vector: Adjacent Network
- Privileges Required: High
- User Interaction: Required
- Scope: Changed
- Confidentiality and Integrity Impact: Low
- Availability Impact: None
Technical Details of CVE-2019-20746
This section provides more in-depth technical information about the vulnerability.
Vulnerability Description
The vulnerability allows attackers to execute malicious scripts in the context of a user's browser when the user visits a specially crafted URL.
Affected Systems and Versions
The following NETGEAR device models and versions are impacted:
- D3600, D6000, D7800, DM200, R7800, R8900, R9000, RBK20, RBR20, RBS20, RBK40, RBS40, RBK50, RBR50, RBS50, WN3000RPv2, WN3000RPv3, WN3100RPv2, WNDR4300v2, WNDR4500v3, WNR2000v5.
Exploitation Mechanism
Attackers can exploit this vulnerability by tricking users into clicking on a malicious link that executes the injected script in the user's browser.
Mitigation and Prevention
Protecting systems from CVE-2019-20746 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update affected devices to the latest firmware versions provided by NETGEAR.
- Avoid clicking on suspicious links or visiting untrusted websites.
- Implement network-level protections such as firewalls and intrusion detection systems.
Long-Term Security Practices
- Regularly monitor security advisories from NETGEAR and apply patches promptly.
- Educate users about the risks of clicking on unknown links and practicing safe browsing habits.
Patching and Updates
- NETGEAR has released patches for the affected devices. Ensure timely installation of these patches to mitigate the vulnerability.