CVE-2019-9802 : Vulnerability Insights and Analysis

A vulnerability in Firefox versions prior to 66 could allow an attacker to access sensitive data by bypassing sandbox protections.

Understanding CVE-2019-9802

This CVE involves a Chrome process information leak in Firefox versions preceding 66.

What is CVE-2019-9802?

If a Sandbox content process is compromised, it can trigger an FTP download, leading to potential access to adjacent data in the Chrome process.

The Impact of CVE-2019-9802

Allows an attacker to potentially access sensitive information from the privileged Chrome process.
Circumvents sandbox safeguards, creating a security risk.

Technical Details of CVE-2019-9802

This section provides detailed technical insights into the vulnerability.

Vulnerability Description

Compromised Sandbox content process initiates an FTP download.
Downloaded data rendered by a child process and transmitted to Chrome with arbitrary file length.

Affected Systems and Versions

Product: Firefox
Vendor: Mozilla
Versions Affected: Preceding version 66

Exploitation Mechanism

Attacker triggers FTP download via compromised Sandbox content process.
Rendered data passed to Chrome process, potentially accessing adjacent data.

Mitigation and Prevention

Protect your systems from CVE-2019-9802 with these steps:

Immediate Steps to Take

Update Firefox to version 66 or above to mitigate the vulnerability.
Monitor for any suspicious activities on the network.

Long-Term Security Practices

Implement strict access controls to limit sensitive data exposure.
Regularly educate users on safe browsing practices to prevent exploitation.

Patching and Updates

Stay informed about security advisories from Mozilla and apply patches promptly.