CVE-2020-9860 : What You Need to Know

A custom URL scheme handling issue in Safari has been addressed with improved input validation, fixing a vulnerability that could lead to arbitrary JavaScript code execution.

Understanding CVE-2020-9860

This CVE involves a security issue in Safari versions prior to 13.0 that could allow maliciously crafted URLs to execute arbitrary JavaScript code.

What is CVE-2020-9860?

CVE-2020-9860 is a vulnerability in Safari that could be exploited by processing specially crafted URLs to execute arbitrary JavaScript code.

The Impact of CVE-2020-9860

The vulnerability could potentially lead to arbitrary code execution by processing malicious URLs in Safari versions prior to 13.0.

Technical Details of CVE-2020-9860

This section provides more technical insights into the CVE.

Vulnerability Description

The issue involves a custom URL scheme handling problem in Safari that has been mitigated with enhanced input validation.

Affected Systems and Versions

Product: Safari
Vendor: Apple
Affected Versions: < 13.0

Exploitation Mechanism

Processing a maliciously crafted URL in affected Safari versions could trigger the execution of arbitrary JavaScript code.

Mitigation and Prevention

Protecting systems from CVE-2020-9860 requires specific actions.

Immediate Steps to Take

Update Safari to version 13.0.5 or later to address the vulnerability.
Avoid clicking on suspicious or untrusted URLs to prevent potential exploitation.

Long-Term Security Practices

Regularly update software and browsers to the latest versions to patch known vulnerabilities.
Implement secure coding practices to mitigate the risk of code execution through input validation flaws.

Patching and Updates

Ensure timely installation of security updates and patches provided by Apple for Safari to stay protected.