CVE-2019-20738 : Security Advisory and Response

Certain models of NETGEAR devices are vulnerable to stored XSS vulnerabilities, potentially stemming from an incomplete fix for a previous CVE.

Understanding CVE-2019-20738

Certain NETGEAR devices, including popular models like D6100, R7800, and WNDR3700v4, are susceptible to stored XSS vulnerabilities.

What is CVE-2019-20738?

CVE-2019-20738 is a vulnerability that affects specific NETGEAR devices, potentially allowing attackers to execute malicious scripts in the context of a user's browser.

The Impact of CVE-2019-20738

CVSS Base Score: 5.2 (Medium)
Attack Vector: Adjacent Network
User Interaction: Required
Scope: Changed
Confidentiality and Integrity Impact: Low
Privileges Required: None
This vulnerability could lead to unauthorized script execution and potential data exposure.

Technical Details of CVE-2019-20738

Certain technical aspects of the vulnerability are crucial to understanding its implications.

Vulnerability Description

Stored XSS vulnerability affecting multiple NETGEAR device models.

Affected Systems and Versions

Devices like D6100, R7800, and WNDR3700v4 are impacted.

Exploitation Mechanism

Attackers could exploit this vulnerability by injecting malicious scripts into specific device interfaces.

Mitigation and Prevention

Protecting systems from CVE-2019-20738 requires immediate actions and long-term security measures.

Immediate Steps to Take

Update affected devices to the latest firmware provided by NETGEAR.
Monitor network traffic for any suspicious activities.
Educate users about the risks of clicking on unknown links or downloading files.

Long-Term Security Practices

Regularly update firmware and security patches on all network devices.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

NETGEAR has released patches to address the vulnerability; ensure timely installation to mitigate risks.