CVE-2019-19788 : Security Advisory and Response

Opera for Android before version 54.0.2669.49432 is vulnerable to a sandboxed cross-origin iframe bypass attack, allowing attackers to perform forced redirections without user interaction.

Understanding CVE-2019-19788

Prior to version 54.0.2669.49432, Opera for Android is susceptible to a security flaw that enables bypassing of the sandboxed cross-origin iframe protection.

What is CVE-2019-19788?

Vulnerability in Opera for Android allowing bypassing of sandboxed cross-origin iframe protection
Attackers can execute forced redirections without user engagement

The Impact of CVE-2019-19788

Potential for malicious actors to redirect users to harmful websites without their consent
Exploitation can lead to unauthorized actions within the browser

Technical Details of CVE-2019-19788

Opera for Android version below 54.0.2669.49432 is affected by:

Vulnerability Description

Security flaw enables bypassing sandboxed cross-origin iframe protection
Allows attackers to circumvent usual safeguards provided by sandboxing attributes

Affected Systems and Versions

Product: Opera for Android
Vendor: Opera Software AS
Versions Affected: Below 54.0.2669.49432

Exploitation Mechanism

By using a service within a sandboxed iframe, attackers can bypass normal sandboxing attributes
Enables forced redirections without user interaction from an external context

Mitigation and Prevention

Immediate Steps to Take

Update Opera for Android to version 54.0.2669.49432 or newer
Avoid clicking on suspicious links or visiting untrusted websites

Long-Term Security Practices

Regularly update software and applications to the latest versions
Implement security best practices for browsing and downloading content

Patching and Updates

Stay informed about security advisories from Opera Software AS
Apply patches and updates promptly to address known vulnerabilities