CVE-2019-11708 : Security Advisory and Response

A security vulnerability in Mozilla Firefox and Thunderbird could allow for arbitrary code execution on the user's computer.

Understanding CVE-2019-11708

This CVE involves a sandbox escape using the Prompt:Open IPC message between child and parent processes in Mozilla products.

What is CVE-2019-11708?

The vulnerability arises from inadequate validation of parameters in the Prompt:Open IPC message, enabling a compromised child process to influence the unsandboxed parent process to open malicious web content, potentially leading to arbitrary code execution.

The Impact of CVE-2019-11708

If exploited, this vulnerability could result in executing arbitrary code on systems running affected versions of Firefox ESR, Firefox, and Thunderbird, potentially compromising user data and system integrity.

Technical Details of CVE-2019-11708

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The flaw allows a compromised child process to manipulate the parent process into opening malicious web content, potentially leading to arbitrary code execution.

Affected Systems and Versions

Firefox ESR < 60.7.2
Firefox < 67.0.4
Thunderbird < 60.7.2

Exploitation Mechanism

The vulnerability leverages the Prompt:Open IPC message to escape the sandbox and execute arbitrary code on the user's system.

Mitigation and Prevention

Protecting systems from CVE-2019-11708 requires immediate actions and long-term security measures.

Immediate Steps to Take

Update Mozilla Firefox and Thunderbird to versions 60.7.2 and 67.0.4 or higher, respectively.
Avoid clicking on suspicious links or downloading files from untrusted sources.
Consider using security tools to detect and prevent malicious activities.

Long-Term Security Practices

Regularly update software and applications to patch known vulnerabilities.
Implement strong security protocols and practices to mitigate the risk of exploitation.

Patching and Updates

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